{"id":10667,"date":"2022-04-29T12:10:44","date_gmt":"2022-04-29T03:10:44","guid":{"rendered":"https:\/\/jennifersoft.com\/ko\/?p=10667"},"modified":"2023-08-02T15:32:31","modified_gmt":"2023-08-02T06:32:31","slug":"2022-05-02","status":"publish","type":"post","link":"https:\/\/jennifersoft.com\/ko\/blog\/tech\/2022-05-02\/","title":{"rendered":"\uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc0d8\ud50c\ub9c1\uc744 \uc774\uc6a9\ud55c \uc131\ub2a5 \ubd84\uc11d &#8211; SFR(Stacktrace Flight Recorder)"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/\u1100\u116e\u11a8\u1106\u116e\u11ab_\u1107\u1173\u11af\u1105\u1169\u1100\u1173_\u1111\u1173\u11af\u1105\u1166\u110b\u1175\u11b7\u1109\u1173\u110f\u1169\u1111\u1173_\u110f\u1165\u1107\u1165_220501-1024x614.jpg\" alt=\"\" class=\"wp-image-10700\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/\u1100\u116e\u11a8\u1106\u116e\u11ab_\u1107\u1173\u11af\u1105\u1169\u1100\u1173_\u1111\u1173\u11af\u1105\u1166\u110b\u1175\u11b7\u1109\u1173\u110f\u1169\u1111\u1173_\u110f\u1165\u1107\u1165_220501-1024x614.jpg 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/\u1100\u116e\u11a8\u1106\u116e\u11ab_\u1107\u1173\u11af\u1105\u1169\u1100\u1173_\u1111\u1173\u11af\u1105\u1166\u110b\u1175\u11b7\u1109\u1173\u110f\u1169\u1111\u1173_\u110f\u1165\u1107\u1165_220501-300x180.jpg 300w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/\u1100\u116e\u11a8\u1106\u116e\u11ab_\u1107\u1173\u11af\u1105\u1169\u1100\u1173_\u1111\u1173\u11af\u1105\u1166\u110b\u1175\u11b7\u1109\u1173\u110f\u1169\u1111\u1173_\u110f\u1165\u1107\u1165_220501.jpg 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\ub09c <a rel=\"noreferrer noopener\" href=\"https:\/\/jennifersoft.com\/ko\/blog\/tech\/2021-10-18\/\" target=\"_blank\">https:\/\/jennifersoft.com\/ko\/blog\/tech\/2021-10-18\/<\/a> \uc5d0 \uc18c\uac1c\ub41c \uac1c\ubcc4 \ud2b8\ub79c\uc7ad\uc158\uc744 \ub300\uc0c1\uc73c\ub85c \ud55c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \ubd84\uc11d \uae30\ub2a5\uc744 \uc774\uc6a9\ud55c Jira \uc758 \uc131\ub2a5 \uac1c\uc120 \ud6c4 \uadf8 \ub3d9\uc548 Jira \ub294 \ud55c \ubc88\uc758 \uc7ac\uc2dc\uc791 \uc5c6\uc774 \uc5ec\uc804\ud788 \ube60\ub978 \uc751\ub2f5\uc2dc\uac04\uc744 \uc720\uc9c0\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. (\uadf8\ub798\uc11c Jira \uc758 \ucd5c\uc2e0 \ubc84\uc804\uc744 \uc368\ubcfc \uc218 \uc5c6\ub2e4\ub294 \uc810\uc740 \uc870\uae08 \uc544\uc27d\uc2b5\ub2c8\ub2e4. \u314e)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88\uc5d0\ub294 \uc804\uccb4 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc131\ub2a5 \ubd84\uc11d\uc5d0 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uac00\uc9c0\uace0 \ub3cc\uc544\uc654\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac1c\ubcc4 \ud2b8\ub79c\uc7ad\uc158 \ubd84\uc11d\uc73c\ub85c\ub294 \uac1c\uc120\uc774 \ubd88\uac00\ub2a5\ud55c \uc131\ub2a5 \uc774\uc288\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \uac1c\ubc1c\uc790 Y\uc758 \uace0\ubd84 \uad70\ud22c\uae30.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\uae08 \uc2dc\uc791\ud569\ub2c8\ub2e4!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud504\ub864\ub85c\uadf8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ec\ub290\ub54c\uc640 \ub2e4\ub984\uc5c6\uc774 \ud3c9\ud654\ub85c\uc6b4 \uc5b4\ub290\ub0a0. \uac1c\ubc1c\uc790 Y\ub294 \uc5ec\uc804\ud788 APM \uc758 \uc218\uc9d1\uc11c\ubc84 \uc5c5\ubb34\ub97c \ub2f4\ub2f9\ud558\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7f0\ub370 \ucd5c\uadfc \ube44\uc2b7\ud55c \uc720\ud615\uc758 \uc774\uc288\ub4e4\uc774 Jira \uc5d0 \ub4f1\ub85d\ub418\uace0 \uc788\ub294\uac83\uc744 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc218\uc9d1\uc11c\ubc84\uc758 \ub85c\uadf8\uc5d0 \ub2e4\uc74c\uacfc \uac19\uc740 \ub0b4\uc6a9\uc774 \ucd9c\ub825\ub418\uba74\uc11c \ub300\uc2dc\ubcf4\ub4dc\uc5d0 \ub370\uc774\ud130 \ud45c\uc2dc\ub418\uc9c0 \uc54a\ub294\ub2e4\uace0 \ud569\ub2c8\ub2e4!<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"atomic\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">server.data.2022-04-14.log:2022-04-14 15:33:04.833 KST [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=94), finish=350\/1000, wait=0, process=350&lt;br>\nserver.data.2022-04-14.log:2022-04-14 15:33:04.990 KST [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=94), finish=300\/1000, wait=0, process=300&lt;br>\nserver.data.2022-04-14.log:2022-04-14 15:33:08.186 KST [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=136), finish=401\/1000, wait=0, process=401&lt;br>\nserver.data.2022-04-14.log:2022-04-14 15:33:08.701 KST [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=136), finish=294\/1000, wait=0, process=294&lt;br>\nserver.data.2022-04-14.log:2022-04-14 16:28:02.497 KST [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=94), finish=300\/1000, wait=0, process=300<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud788 \ub0b4\uc6a9\uc744 \ud30c\uc545\ud574\ubcf4\uba74 \uac01 \uc694\uccad\uc740 1\ucd08 \uc548\uc5d0 \ucc98\ub9ac\uac00 \ub05d\ub098\uc57c \ud558\ub294\ub370 \uac1c\ubcc4 \ucc98\ub9ac\uac00 0.2 \ucd08\uc5d0\uc11c 0.4 \ucd08\uae4c\uc9c0 \uc18c\uc694\ub41c\ub2e4\ub294 \ub0b4\uc6a9\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc7a0\uae50.. 1\ucd08\ub3c4 \uc544\ub2cc 0.x \ucd08\uc758 \uc694\uccad\uc5d0 \ub300\ud55c \uc131\ub2a5 \uac1c\uc120\uc744 \ud574\uc57c \ud55c\ub2e4\ub2c8 \uac00\ub2a5\ud55c \uac83\uc77c\uae4c\uc694?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc800\ubc88\uc5d0 \uc0ac\uc6a9\ud55c \ud2b8\ub79c\uc7ad\uc158 \ub2e8\uc704\ub85c \uc218\uc9d1\ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \ubd84\uc11d \uae30\ub2a5\uc744 \uc774\uc6a9\ud574\ubcf4\uae30\ub85c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ub2e8 X-View\ucc60\ud2b8\ub97c \ud655\uc778\ud574 \ubd05\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"779\" height=\"582\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_01.png\" alt=\"\" class=\"wp-image-10721\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_01.png 779w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_01-300x224.png 300w\" sizes=\"auto, (max-width: 779px) 100vw, 779px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ub2e4\uc218\uc758 \ud2b8\ub79c\uc7ad\uc158\uc774 1\ucd08\ub3c4 \ub418\uc9c0 \uc54a\ub294 \uc2dc\uac04\uc5d0 \ucc98\ub9ac\ub418\uace0 \uc788\ub124\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">XView \ucc28\ud2b8\uc758 Y\ucd95\uc744 \ub354 \uc791\uc740 \uc2dc\uac04\uc73c\ub85c \uc870\uc808\ud574\uc11c \uadf8\ub098\ub9c8 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc218\uc9d1\ub41c \ud2b8\ub79c\uc7ad\uc158\uc744 \ubc1c\uacac\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"632\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_02-1024x632.png\" alt=\"\" class=\"wp-image-10722\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_02-1024x632.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_02-300x185.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc218\uc9d1\uc11c\ubc84\ub294 \uc6f9 \uc694\uccad\uc774 \uc544\ub2cc TCP \uc694\uccad\uc744 \ucc98\ub9ac\ud558\ub294 \uc11c\ubc84\uc774\uae30\uc5d0 \uac1c\ubcc4 \ud2b8\ub79c\uc7ad\uc158\uc758 \ub9e4\uc6b0 \uc9e7\uc740 \uc2dc\uac04\uc5d0 \ub05d\ub098\ub294 \ud2b9\uc9d5\uc744 \uac16\uace0 \uc788\ub294 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ud2b8\ub79c\uc7ad\uc158\ub2f9 \ud55c\uac1c\uc529 \uc218\uc9d1\ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc815\ubcf4\ub85c\ub294 \uc131\ub2a5 \uac1c\uc120\uc5d0 \ub300\ud55c \uc2e4\ub9c8\ub9ac\ub97c \uc7a1\uc744 \uc218 \uc5c6\uc73c\ub2c8.. \uc5b4\ub5bb\uac8c \ud574\uc57c\ud560\uc9c0 \ub9c9\ub9c9\ud558\uae30\ub9cc \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf0\uacf0\ud788 \uc0dd\uac01\ud574\ubcf4\ub2c8 \uc774\uc804 \ub2f4\ub2f9\ud558\ub358 \uac1c\ubc1c\uc790\uac00 \uba54\uc11c\ub4dc \ud638\ucd9c\uc744 \uc0d8\ud50c\ub9c1\ud558\ub294 \uae30\ub2a5\uc744 \ub123\uc5b4\ub450\uc5c8\ub358 \uac83 \uac19\uc740\ub370..? \uc5bc\ub978 \uc635\uc158\uc744 \ud65c\uc131\ud654\ud574\uc11c \ub85c\uadf8\ub97c \ud655\uc778\ud574 \ubd05\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1016\" height=\"368\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_03.png\" alt=\"\" class=\"wp-image-10723\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_03.png 1016w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_03-300x109.png 300w\" sizes=\"auto, (max-width: 1016px) 100vw, 1016px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uae30\ub2a5\uc740 \uc704 \uc2a4\ud06c\ub9b0\uc0f7\uacfc \uac19\uc774 \ud638\ucd9c\ub41c \uba54\uc11c\ub4dc\uc758 \uc0d8\ud50c\ub9c1 \uacb0\uacfc\ub97c \ub85c\uadf8\uc5d0 \ucd9c\ub825\ud558\ub294 \ud615\ud0dc\ub97c \ub744\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc67c\ucabd\uc758 Elapsed, Self \uc5d0 \ud45c\uc2dc\ub41c \uc22b\uc790\uc758 \uac12\uc774 \ud070 \uba54\uc11c\ub4dc\uac00 \ube48\ubc88\ud558\uac8c \ud639\uc740 \uc624\ub7ab\ub3d9\uc548 \uc218\ud589\ub41c \ub140\uc11d\uc774 \ub418\ub294 \uac83\uc785\ub2c8\ub2e4. \uc720\ub09c\ud788 \ub208\uc5d0 \ub744\ub294 \uba54\uc11c\ub4dc\uac00 \uc788\uae30\uc5d0 \uc774 \uba54\uc11c\ub4dc\ub97c \ud638\ucd9c\ud55c \ubd80\ubd84\uc744 \ucc3e\uc544 \uc218\uc815\ud558\uba74 \ub420 \uac83 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uba54\uc11c\ub4dc\uc758 \ud638\ucd9c \uc704\uce58\ub97c \ucc3e\ub2e4\ubcf4\ub2c8 \uc774\ub7f0 \uc0dd\uac01\uc774 \ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201c\uc77c\uc77c\ud788 \uba54\uc11c\ub4dc\uc758 \uc704\uce58\ub97c \ucc3e\ub294\uac8c \uc880 \ubc88\uac70\ub85c\uc6b4\ub370..\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u201cFlameGraph \ub85c \ubcf4\uc5ec\uc8fc\uba74 \uc5b4\ub51c \ubd10\uc57c\ud560\uc9c0 \ubc14\ub85c \ucc3e\uc744 \uc218 \uc788\uc9c0 \uc54a\uc744\uae4c?\u201d<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u201c\uc608\uc804\uc5d0 \ubd84\uc11d\ud588\ub358 \uc0d8\ud50c\ub9c1 \uacb0\uacfc\ub294 \ud14d\uc2a4\ud2b8\ub85c \ub0a8\uaca8\ub194\uc57c \ud558\ub2c8 \ucc3e\uae30\ub3c4 \ud798\ub4e4\uace0 \uae30\uc5b5\ub3c4 \uc548\ub098\uace0..\u201d<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>\u201c\uc774\ub7f0 \ubd84\uc11d \uae30\ub2a5\uc744 \ub0b4 \uc5c5\ubb34\uc6a9\uc73c\ub85c\ub9cc \uc4f0\uae30 \uc880 \uc544\uae5d\ub124. \uba54\uc11c\ub4dc \uc131\ub2a5 \ubd84\uc11d\uc774 \ud544\uc694\ud55c \uc0ac\uc6a9\uc790\ub3c4 \uc4f8 \uc218 \uc788\ub2e4\uba74 \ub354 \uc88b\uc744\ud150\ub370.\u201d<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u201c\uc88b\uc544. \uc774\uac83\ub3c4 \uc81c\ub2c8\ud37c\uc758 \uae30\ub2a5\uc73c\ub85c \ub9cc\ub4e4\uc5b4\ubcf4\uc790!\u201d<\/em><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc0c8\ub85c\uc6b4 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \ubd84\uc11d \uae30\ub2a5\uc744 \uc704\ud55c \uc900\ube44<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac1c\ubcc4 \ud2b8\ub79c\uc7ad\uc158\uc774 \uc544\ub2cc \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc804\uccb4\uc5d0 \uac78\uce5c \uc0d8\ud50c\ub9c1 \uacb0\uacfc\ub97c \uc870\ud68c\ud574\uc57c \ud558\uae30\uc5d0 \uae30\uc874\uacfc \ub2ec\ub9ac X-View \ud31d\uc5c5\uacfc \uac19\uc740 \uc9c4\uc785\uc810\uc774 \uc5c6\uae30\uc5d0 \uc0c8\ub85c\uc6b4 \ubd84\uc11d\ud654\uba74\uc774 \ud544\uc694\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ubd84\uc11d \uae30\ub2a5\uc5d0\ub294 \uae30\uc874\uc5d0 \ub85c\uadf8\uc5d0 \ucd9c\ub825\ub418\ub358 \uc0d8\ud50c\ub9c1 \uae30\ub2a5\uc758 \uc7a5\uc810\uacfc \ub2e8\uc810\uc744 \ubcf4\uc644\ud558\uae30 \uc704\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \ubaa9\ud45c\ub97c \uc138\uc6e0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\ucd5c\uc18c \ud558\ub8e8 \uc774\uc0c1\uc758 \ubc94\uc704\uc5d0\ub3c4 \ube60\ub974\uac8c \uc870\ud68c\uac00 \uac00\ub2a5\ud560 \uac83 (\ube68\ub9ac\ube68\ub9ac..)<\/li><li>\ubcc4\ub3c4\uc758 \ubcf5\uc7a1\ud55c \uc124\uc815\uacfc\uc815 \uc5c6\uc774 \uac04\ub2e8\ud558\uac8c \uc774\uc6a9\ud560 \uc218 \uc788\uc744 \uac83 (\uac1c\ubc1c\uc790, \ub2f4\ub2f9\uc790\ub294 \uadc0\ucc2e\uc740\uac78 \uc2eb\uc5b4\ud560\uac70\uc57c..)<\/li><li>\uc5d0\uc774\uc804\ud2b8\uc640 \uc218\uc9d1\uc11c\ubc84\uc5d0 \uc8fc\ub294 \uc601\ud5a5\ub3c4 \ucd5c\uc18c\ud654 (\uc774\uac70 \uc4f4\ub2e4\uace0 \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\uba74 \uc548\ub418\uaca0\uc9c0?)<\/li><li>\ucc3e\uace0\uc790 \ud558\ub294 \uba54\uc11c\ub4dc\uc758 \ud638\ucd9c \uad00\uacc4\ub97c \uc9c1\uad00\uc801\uc73c\ub85c \ud30c\uc545\ud560 \uc218 \uc788\uc744 \uac83 (\uc2dc\uac04\uc740 \uae08\uc774\ub85c\ub2e4..)<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ucd5c\ucd08\ub85c \ud544\uc218 \uad6c\uc131\uc694\uc18c\ub294 \uac04\ub2e8\ud558\uac8c \ub450\uac00\uc9c0\ub97c \uc120\uc815\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc218\uc9d1 \uc2dc\uc810\uc5d0 \ud638\ucd9c\uc911\uc774\uc5c8\ub358 \uba54\uc11c\ub4dc\uc758 \ud1b5\uacc4 (\uc774\ud6c4 Top \uba54\uc11c\ub4dc \ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4.)<\/li><li>\uc870\ud68c \ubc94\uc704\ub85c\ubd80\ud130 \uc870\ud68c\ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\ub97c \uae30\ubc18\uc73c\ub85c \ud55c FlameGraph<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544.. \uadf8\ub7f0\ub370 \uc774\uc804\uacfc \ub2ec\ub9ac \ubd84\uc11d\uc758 \ub300\uc0c1\uc774 \ub418\ub294 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\uc758 \uac1c\uc218\uac00 \uc544\uc8fc \ub9ce\uc744 \uac00\ub2a5\uc131\uc774 \uc788\uaca0\ub2e4\ub294 \uc0dd\uac01\uc774 \ub4ed\ub2c8\ub2e4. \uc774\uc804\uc5d0\ub294 \ud558\ub098\uc758 \ud2b8\ub79c\uc7ad\uc158\uc5d0 \ub300\ud55c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc815\ubcf4\uc600\ub2e4\uba74 \uc774\uc81c\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc804\uccb4\uc5d0\uc11c \uc218\uc9d1\ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc815\ubcf4\uc774\uae30 \ub54c\ubb38\uc774\uc8e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201c\uc77c\uc804\uc758 \uc2dd\uc0c1\ud55c \ubd84 \ub2e8\uc704 \uc870\ud68c\uc2dc\uac04 \ubc94\uc704 \uc870\uc808 \ubc29\ubc95\ub9d0\uace0 \ub354 \ub098\uc740 \ubc29\ubc95\uc774 \uc5c6\uc744\uae4c?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\uc528\ub294 FlameGraph \uc640 \uad00\ub828\ub41c \uae30\uc0ac\ub4e4\uc744 \uad00\uc2ec\uc788\uac8c \uc0b4\ud3b4\ubcf4\ub2e4 FlameScope(<a href=\"https:\/\/netflixtechblog.com\/netflix-flamescope-a57ca19d47bb\">https:\/\/netflixtechblog.com\/netflix-flamescope-a57ca19d47bb<\/a>) \ub77c\ub294 \uac83\uc744 \ubc1c\uacac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0b4\uc6a9\uc744 \uc0b4\ud3b4\ubcf4\ub2c8 FlameGraph \ub97c \uace0\uc548\ud55c \uac1c\ubc1c\uc790\uac00 \uac1c\ubc1c\ud55c \uc2dc\uac01\ud654 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud558\uac8c \uc774\uc57c\uae30 \ud558\uba74 \ud788\ud2b8\ub9f5 \ucc28\ud2b8\uc5d0 \uc791\uc740 \ub2e8\uc704\uc758 \uc2dc\uac04 \uad6c\uac04\uc73c\ub85c \uc9d1\uacc4\ud55c \ub370\uc774\ud130\ub97c \uac1c\uc218\uc5d0 \ube44\ub840\ud558\ub294 \uc0c9\uc0c1\uc758 \uc9c4\ud558\uae30\ub85c \ub098\ud0c0\ub0b4\ub294 \ucc28\ud2b8\uc785\ub2c8\ub2e4. \uc77c\ubc18 \ud788\ud2b8\ub9f5\uacfc\uc758 \ucc28\uc774\ub294 X, Y \ucd95\uc774 \ubaa8\ub450 \uc2dc\uac04\uc744 \ud45c\uc2dc\ud558\uae30\uc5d0 \uc2dc\uac04\uc758 \ud750\ub984\uc5d0 \ub530\ub978 \ud328\ud134\uc744 \ud45c\ud604\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"990\" height=\"840\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_04.png\" alt=\"\" class=\"wp-image-10724\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_04.png 990w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_04-300x255.png 300w\" sizes=\"auto, (max-width: 990px) 100vw, 990px\" \/><figcaption> FlameScope \ub85c \ud45c\ud604\ub41c \ub300\ud45c\uc801\uc778 \ud328\ud134\ub4e4\uc785\ub2c8\ub2e4. \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 <a href=\"https:\/\/www.brendangregg.com\/blog\/2018-11-08\/flamescope-pattern-recognition.html\">https:\/\/www.brendangregg.com\/blog\/2018-11-08\/flamescope-pattern-recognition.html<\/a> \uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ud638\ub77c.. \uc774\uac83\uc774\ub77c\uba74 \ub300\ub7c9\uc758 \ub370\uc774\ud130\ub97c \uc870\ud68c\ud558\uae30 \uc704\ud55c \ubc94\uc704 \uc870\uc808\uae30\ub85c \uc4f8 \uc218 \uc788\uc744 \uac83 \uac19\uc2b5\ub2c8\ub2e4. \ud639\uc5ec\ub098 \uc800\ub7f0 \ud328\ud134\uc744 \ubcf4\uac8c \ub41c\ub2e4\uba74 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc0c1\ud0dc\uae4c\uc9c0 \ub364\uc73c\ub85c \ud30c\uc545\ud560 \uc218 \uc788\uaca0\uc8e0?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub807\uac8c \uc0c8\ub85c\uc6b4 \ubd84\uc11d\ud654\uba74\uc744 \uc704\ud55c 3\uac1c\uc758 \ud56d\ubaa9\uc774 \uc120\uc815 \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud328\ud134\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc0c1\ud0dc\ub97c \uc54c \uc218 \uc788\ub294 \uac83 \uc678\uc5d0\ub3c4 \uc2dc\uac04\uc758 \ud750\ub984\uc744 \ub098\ud0c0\ub0b4\ub294 \ucc28\ud2b8\uc774\uae30\uc5d0 \ubc94\uc704\ub97c \ub4dc\ub798\uadf8 \ud560 \uc218 \uc788\uace0 \ub300\ub7c9\uc758 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc815\ubcf4\uc758 \uc870\ud68c \ubc94\uc704\ub97c \uc124\uc815\ud560 \uc218 \uc788\ub294 \uc5ed\ud560\uc744 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>FlameScope<\/li><li>Top Method<\/li><li>FlameGraph<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uac01 \ud56d\ubaa9\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ubd84\uc11d \ud654\uba74\uc774 \uc644\uc131\ub418\uba74 \ud558\ub098 \ud558\ub098 \uc790\uc138\ud788 \uc18c\uac1c\ud574 \ub4dc\ub9b4\uaed8\uc694.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uadf8\ub85c\ubd80\ud130 \uc57d 3\ub2ec \ud6c4..<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub860\ud2b8 \uac1c\ubc1c\uc790, \ub514\uc790\uc774\ub108\uc640 \ud568\uaed8 \uce58\uc5f4\ud55c \ud1a0\uc758\ub97c \uac70\uccd0 \uc5b4\ub290\ub367 \uc0c8\ub85c\uc6b4 \ubd84\uc11d \uae30\ub2a5\uc774 \uad6c\ud604 \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ub2a5\uc758 \uc774\ub984\uc740 \ub0b4\ubd80\uc801\uc73c\ub85c \uacf5\ubaa8\ud558\uc5ec \ud22c\ud45c\ub85c \uc9c4\ud589\ud588\uace0 <strong>SFR<\/strong>(Stacktrace Flight Recorder) \ub85c \uacb0\uc815 \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \ub3d9\uc791\ud558\ub294 \uac00\uc6b4\ub370 \uc54c\uac8c \ubaa8\ub974\uac8c \uc810\uc9c4\uc801\uc73c\ub85c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uc815\ubcf4\ub97c \uae30\ub85d\ud55c\ub2e4\ub294 \uc758\ubbf8\ub97c \uac16\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc0c1\uce58 \ubabb\ud55c \uc0c1\ud669\uc774 \uc788\uc744\ub54c \uc0c1\uc2dc \uae30\ub85d\ub41c \uc2a4\ud0dd \uc815\ubcf4\ub85c \uc6d0\uc778 \ud30c\uc545\uc5d0 \uacb0\uc815\uc801\uc778 \ub3c4\uc6c0\uc774 \ub420\uac83\uc774\ub77c \uae30\ub300\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>SFR<\/strong> \uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"558\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_05-1024x558.png\" alt=\"\" class=\"wp-image-10725\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_05-1024x558.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_05-300x164.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\uac01 \uad6c\uc131\uc694\uc18c\uc758 \uc758\ub3c4\uc640 \ubaa9\uc801<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 \ucca8\ubd80\ub41c \uc774\ubbf8\uc9c0\uc640 \uac19\uc774 SFR \uc740 \ud06c\uac8c 3\uac1c\uc758 \uad6c\uc131\uc694\uc18c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.FlameScope<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"119\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_06-1024x119.png\" alt=\"\" class=\"wp-image-10726\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_06-1024x119.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_06-300x35.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ubd89\uc740\uc0c9 \uacc4\uc5f4\uc744 \uac16\ub294 \uc791\uc740 \ub124\ubaa8\ub97c \uc794\ub729 \uadf8\ub9b0 \ucc28\ud2b8\uc785\ub2c8\ub2e4. \uac01 \ub124\ubaa8 \ud55c\uce78\uc740 1\ubd84\uc758 \uad6c\uac04\uc744 \uc758\ubbf8\ud558\uba70 \uc218\uc9d1\ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\uc758 \uac1c\uc218\uac00 \ub9ce\uc744\uc218\ub85d \ub354 \uc9d9\uc740 \ube68\uac15\uc0c9\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FlameScope \ub294 \ud06c\uac8c \ub450\uac00\uc9c0 \ubaa9\uc801\uc744 \uac16\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li> <strong>TopMethod, FlameGraph \uc870\ud68c \ubc94\uc704 \uc120\ud0dd<\/strong> \uc77c \ub2e8\uc704\ub85c \ub118\uc5b4\uac00\ub294 \ubc94\uc704\ub85c \uc870\ud68c\ud588\uc744\ub54c\uc758 \ubcc0\ud654\ub97c \uc0b4\ud3b4\ubcf4\uace0 \uc2f6\uc5b4 \ucd5c\ub300 \uc870\ud68c\uae30\uac04\uc740 7\uc77c\ub85c \uc815\ud588\uc2b5\ub2c8\ub2e4. \ub9cc\uc57d \uc774 \uae30\uac04\uc5d0 \uc18d\ud558\ub294 \ub370\uc774\ud130\ub97c \ubaa8\ub450 \uc870\ud68c\ud55c\ub2e4\uba74 \ub290\ub9b0 \uc870\ud68c \uc18d\ub3c4\ub85c \uc0ac\uc6a9\uc790\uac00 \uae30\ub300\ud558\ub294 \uc0ac\uc6a9\uc131\uc744 \ub9cc\uc871\uc2dc\ud0ac \uc218 \uc5c6\uaca0\uc8e0? \ub354 \ubd89\uc740 \ubd80\ubd84\uc740 \uc5b4\ub5a4 \uc774\uc720\ub85c \uc778\ud574 \ub354 \ub9ce\uc740 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\uac00 \uc218\uc9d1 \ub418\uc5c8\uc74c\uc744 \ub73b\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\uc790\uac00 \ud655\uc778\ud574\uc57c \ud560 \ubd80\ubd84\uc740 \ubc14\ub85c \uc774 \uc9c0\uc810\uc785\ub2c8\ub2e4. FlameScope \ub97c \uc774\uc6a9\ud574 \ubd84\ub2e8\uc704 \uc218\uc9d1 \ube48\ub3c4\ub97c \ubc14\ud0d5\uc73c\ub85c \ud45c\uc2dc\ud588\uae30 \ub54c\ubb38\uc5d0 \uc0ac\uc6a9\uc790\uc758 \ubd84\uc11d\uc5d0 \ud544\uc694\ud55c \uc2dc\uac04 \uad6c\uac04\ub300\ub97c \uc881\ud790 \uc218 \uc788\uc2b5\ub2c8\ub2e4. (\ud504\ub85c\ud30c\uc77c\uc744 \ud655\uc778\ud558\uae30 \uc704\ud55c X-View \ucc28\ud2b8\uc640 \uc720\uc0ac\ud55c \uad00\uacc4\uc785\ub2c8\ub2e4.) <\/li><li> <strong>\ud788\ud2b8\ub9f5 \ucc28\ud2b8\uc5d0 \ub098\ud0c0\ub098\ub294 \ud328\ud134\uc744 \uae30\ubc18\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ud2b9\uc9d5, \uc0c1\ud0dc \uc608\uce21<\/strong> \uc704\uc5d0\uc11c FlameGraph \ub97c \uc120\uc815\ud558\uac8c \ub41c \uacfc\uc815\uc5d0\uc11c \uc801\uc5c8\ub358 \ubc14\uc640 \uac19\uc774 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc5b4\ub5a0\ud55c \uc0c1\ud0dc\ub97c \ubcf4\uc5ec\uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\ub0b4\uc5d0\uc11c\ub294 \ud2b9\uc815 \uc2dc\uac04\uc5d0 \ubd80\ud558\uac00 \uc9d1\uc911\ub418\ub294 \ud328\ud134, \uc2dc\uac04 \uac04\uaca9\uc744 \uac16\uace0 \uc8fc\uae30\uc801\uc73c\ub85c \uc2e4\ud589\ub418\ub294 \uc77c\ubd80 \ud328\ud134\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. <\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"256\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_07-1024x256.png\" alt=\"\" class=\"wp-image-10727\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_07-1024x256.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_07-300x75.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\ud2b9\uc815 \uc8fc\uae30\ub97c \uac16\uace0 \uc2e4\ud589\ub418\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158. \uc911\uac04\uc911\uac04 \ud558\uc597\uac8c \ube48 \ubd80\ubd84\uc740 \ub370\uc774\ud130\uac00 \uc218\uc9d1\ub418\uc9c0 \uc54a\uc740 \uad6c\uac04\uc73c\ub85c \uc774 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc740 \uc8fc\uae30\uc801\uc73c\ub85c \uc5b4\ub5a4 \ucc98\ub9ac\ub97c \ud558\uace0 \uc788\uc74c\uc744 \uc554\uc2dc\ud569\ub2c8\ub2e4. (** \uc11c\ube44\uc2a4\uc758 \ubc31\uadf8\ub77c\uc6b4 \ub370\uc774\ud130 \ucc98\ub9ac \uc11c\ubc84 \uc785\ub2c8\ub2e4.) <br><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"123\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_08-1024x123.png\" alt=\"\" class=\"wp-image-10728\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_08-1024x123.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_08-300x36.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\uac00\uc6b4\uc5d0 \ub2e4\ub978 \uc601\uc5ed\ubcf4\ub2e4 \ubd89\uac8c \ud45c\uc2dc\ub418\ub294 \ubd80\ubd84\uc740 \uc57d \uc624\uc8049\uc2dc\ubd80\ud130 18\uc2dc\uae4c\uc9c0\uc758 \uc2dc\uac04\uc73c\ub85c \uc774 \uc2dc\uac04\ub300\uc5d0 \uc694\uccad\uc774 \uc9d1\uc911\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\uace0 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. (\ub0b4\ubd80 \ub370\ubaa8 \uc2dc\uc2a4\ud15c\uc758 \uac00\uc0c1\uc758 \uc694\uccad\uc744 \ucc98\ub9ac\ud558\ub294 \ub370\ubaa8)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2 TopMethod<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"426\" height=\"860\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_09-426x860.png\" alt=\"\" class=\"wp-image-10729\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_09-426x860.png 426w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_09-149x300.png 149w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_09.png 651w\" sizes=\"auto, (max-width: 426px) 100vw, 426px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\ub97c \uc218\uc9d1\ud55c \uc2dc\uc810\uc5d0 \uc218\ud589\uc911\uc774\uc5c8\ub358 \uba54\uc11c\ub4dc\uc758 \ud638\ucd9c \ubd84\ud3ec\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uacf3\uc5d0 \uc0ac\uc6a9\uc790\uac00 \ub9cc\ub4e0 \uba54\uc11c\ub4dc\uac00 \uc704\ucabd\uc5d0 \uc704\uce58\ud55c\ub2e4\uba74 \ubc14\ub85c \uadf8\uba54\uc11c\ub4dc\uac00 \ubcd1\ubaa9 \uc9c0\uc810\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \uc704 \uc2a4\ud06c\ub9b0\uc0f7\uc5d0\uc11c\ub294 \ud30c\uc77c\uc758 \ud06c\uae30\ub97c \uce21\uc815\ud558\ub294 FileDispatcherImpl.size0 \uba54\uc11c\ub4dc\uac00 \uac00\uc7a5 \ub9ce\uc740 \ube48\ub3c4\ub85c \ud638\ucd9c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc804\uc5d0 \uce21\uc815\ud55c \ud30c\uc77c\uc758 \ud06c\uae30\ub97c \uce90\uc2dc\ud558\ub294 \ubc29\ubc95\uc744 \uc774\uc6a9\ud558\uba74 \uc774 \uba54\uc11c\ub4dc\uc758 \ub4f1\uc7a5 \ube48\ub3c4\ub97c \ub0ae\ucd9c \uc218 \uc788\uace0 \uadf8 \uc2dc\uac04\ub3d9\uc548 \ub2e4\ub978 \uba54\uc11c\ub4dc\uac00 \uc2e4\ud589\ub420 \uc218 \uc788\ub294 \uc2dc\uac04\uc744 \ud655\ubcf4\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774\uac83\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5 \ud5a5\uc0c1\uc73c\ub85c \uc774\uc5b4\uc9c0\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacfc\uac70 \ub85c\uadf8 \uae30\ubc18\uc758 \uba54\uc11c\ub4dc \uc0d8\ud50c\ub9c1 \ubd84\uc11d \uae30\ub2a5\uc744 \uc774\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9 \ub418\uc5c8\ub358 \ubd80\ubd84\uc73c\ub85c \uc5ec\uae30\uc5d0 \ub098\ud0c0\ub09c \uba54\uc11c\ub4dc\ub97c \ud638\ucd9c\ud55c \ubd80\ubd84\uc744 \ucc3e\uc544 \uac1c\uc120\ud558\ub294 \uacfc\uc815\uc744 \ubc18\ubcf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8, \ud55c \uac00\uc9c0 \ud55c\uacc4\uac00 \uc788\uc5c8\uc73c\ub2c8.. \uc5ec\uae30\uc5d0 \ub098\ud0c0\ub09c \uba54\uc11c\ub4dc\ub97c \ucc3e\uae30 \uc704\ud574\uc11c\ub294 IDE \ub97c \uc774\uc6a9\ud574\uc11c \ud638\ucd9c\ud55c \uba54\uc11c\ub4dc \ucc3e\uae30\uc5d0 \uc0c1\ub2f9\ub7c9\uc758 \uc2dc\uac04\uc744 \uc18c\ube44\ud574\uc57c \ud588\uc2b5\ub2c8\ub2e4. \ub9cc\uc57d \uadf8 \uba54\uc11c\ub4dc\uac00 \uc5ec\ub7ec \uacf3\uc5d0\uc11c  \ud638\ucd9c\ub418\uace0 \uc788\ub294 \uacbd\uc6b0\uc5d0\ub294 \ub354\uc6b1 \uc9c0\ub8e8\ud55c \uc791\uc5c5\uc774 \uc544\ub2d0 \uc218 \uc5c6\uaca0\uc8e0?  (IDE\uac00 \uc5c6\ub2e4\uba74 \uc544\ub9c8\ub3c4 \ubd88\uac00\ub2a5\ud588\uc744\uac70\uc5d0\uc694.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3.FlameGraph<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"540\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_10-1024x540.png\" alt=\"\" class=\"wp-image-10730\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_10-1024x540.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_10-300x158.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">TopMethod \uc5d0\uc11c\uc758 \uc9c0\ub8e8\ud55c \uba54\uc11c\ub4dc \uc704\uce58 \ucc3e\uae30\ub85c\ubd80\ud130 \uc800\ub97c \ud574\ubc29\uc2dc\ucf1c\uc900 \uad6c\uc6d0\uc790 \uc785\ub2c8\ub2e4. \ud83d\ude0d \uc5ec\uae30\uc11c\ub294 \uae30\uc874\uacfc \ub2ec\ub9ac \uac70\uafb8\ub85c \ub4a4\uc9d1\ud78c \ud615\ud0dc\uc758 FlameGraph \ub97c \uc774\uc6a9\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc73c\ub85c <strong>Inverted<\/strong> <strong>FlameGraph<\/strong> \ud639\uc740 <strong>Icicle Graph<\/strong> \ub85c \ubd88\ub9bd\ub2c8\ub2e4. \uc704\uc5d0\uc11c\ubd80\ud130 \uc544\ub798\ub85c \uc11c\uc11c\ud788 \uc791\uc544\uc9c0\ub294 \ubaa8\uc2b5\uc774 \ube59\ud558\uc758 \ubaa8\uc2b5\uc744 \ub744\uace0 \uc788\ub294 \uc810\uc5d0\uc11c \ucc29\uc548\ud55c \uc774\ub984\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4. \uadf8\ub798\ud504\uc758 \uac00\uc7a5 \uc704\ucabd\uc740 \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4\uc758 \uc2dc\uc791\uc9c0\uc810, \uc544\ub798\ub85c \uac08\uc218\ub85d \ucd5c\uadfc\uc5d0 \uc2e4\ud589\ub41c \uba54\uc11c\ub4dc\uac00 \ud45c\uc2dc\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9cc\uc57d \uc77c\ubc18\uc801\uc778 \ud615\ud0dc\uc758 FlameGraph \ub97c \uc774\uc6a9\ud588\ub2e4\uba74 \ub0ae\uc740 \ud574\uc0c1\ub3c4\uc758 \ubaa8\ub2c8\ud130\ub97c \uc0ac\uc6a9\ud558\ub294 \uc0ac\uc6a9\uc790\uc758 \uacbd\uc6b0 \ub192\uc740 \ud655\ub960\ub85c \uc587\uc740 \uc813\uac00\ub77d \uad6c\uac04\ub4e4\ub9cc \ubcf4\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc744 \ucc98\uc74c \uc811\ud55c \uc0ac\uc6a9\uc790\ub294 \ub2f9\ud669\ud560\uc9c0\ub3c4 \ubaa8\ub985\ub2c8\ub2e4. (\uc2ec\uc9c0\uc5b4 \uc774 \uacbd\uc6b0\ub294 \uba54\uc11c\ub4dc\uc758 \uc774\ub984\ub3c4 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Inverted<\/strong> <strong>FlameGraph<\/strong> \ub97c \uc774\uc6a9\ud558\uba74 \uc801\uc5b4\ub3c4 \uc0c1\ub2e8\uc5d0 \ubcf4\uc774\ub294 \uc601\uc5ed\uc740 \ud638\ucd9c \uc2a4\ud0dd\uc758 \uc2dc\uc791 \uc9c0\uc810\uc774 \ub418\uae30\uc5d0 \uc0ac\uc6a9\uc790\uac00 \uc5b4\ub290 \uc815\ub3c4 \uc27d\uac8c \uc778\uc9c0\ud560 \uac00\ub2a5\uc131\uc774 \ub192\ub2e4\uace0 \uc0dd\uac01\ud588\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 Self \uba54\uc11c\ub4dc\ub294 \uc774\ubbf8 \uc67c\ucabd\uc5d0 \uc788\ub294 TopMethod \uc5d0\uc11c \ubc14\ub85c \ud655\uc778\uc774 \uac00\ub2a5\ud55c \uc0c1\ud0dc\uc785\ub2c8\ub2e4!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc67c\ucabd\uc5d0 \uc704\uce58\ud55c <strong>TopMethod<\/strong> \uc758 \uac01 \ub77c\uc778\uc744 \ud074\ub9ad\ud558\uac70\ub098 \uac80\uc0c9 \ud0a4\uc6cc\ub4dc\ub97c \uc785\ub825\ud558\uba74 \ud574\ub2f9 \uba54\uc11c\ub4dc\uc758 \uc704\uce58\ub97c FlameGraph \uc5d0 \uac15\uc870\ud558\uc5ec \ud45c\uc2dc\ud574\uc8fc\uae30 \ub54c\ubb38\uc5d0 \uc790\uc8fc \ud638\ucd9c\ub41c \uba54\uc11c\ub4dc\uc640 \uadf8 \uba54\uc11c\ub4dc\uc758 \ud638\ucd9c\ud55c \ubd80\ubd84\uc744 \uac04\ub2e8\ud558\uac8c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_11-1024x575.png\" alt=\"\" class=\"wp-image-10731\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_11-1024x575.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_11-300x168.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>\uae30\uc874\uc758 FlameGraph \uc5d0\uc11c \ub9ce\uc740 \ubd80\ubd84\uc774 \uac1c\uc120 \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc6b0\uce21 \uc0c1\ub2e8\uc758 \ud544\ud130\ub9c1\uc2dc \ub9e4\uce6d\ub418\ub294 \uba54\uc11c\ub4dc\ub97c \uc27d\uac8c \uc778\uc9c0\ud560 \uc218 \uc788\uace0 \uac01 \uc0ac\uac01\ud615\uc744 \ud074\ub9ad\ud558\uba74 \ub2e4\ub978 \ud638\ucd9c \ud2b8\ub9ac\ub97c \uc81c\uc678\ud55c \ud604\uc7ac \ud638\ucd9c\ud2b8\ub9ac\ub9cc \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ucd94\uac00\ub85c \uc774\ub7ec\ud55c \uc90c\uc778\uc744 \ub418\ub3cc\ub9ac\uac70\ub098 \ucd08\uae30\ud654 \ud558\ub294 \uae30\ub2a5\ub3c4 \uc81c\uacf5\ud569\ub2c8\ub2e4. <\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\uae08\uae4c\uc9c0 SFR \uc758 \uac01 \uad6c\uc131\uc694\uc18c\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc81c SFR \uc744 \uc774\uc6a9\ud574\uc11c \uac1c\ubc1c\uc790 Y\uac00 \uacaa\uc740 \ube44\uad50\uc801 \uc791\uc740 \uc751\ub2f5\uc2dc\uac04\uc744 \uac16\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5 \uac1c\uc120\uc744 \uc2dc\ub3c4\ud574\ubcf4\uace0 \uc2e4\uc81c\ub85c \ud6a8\uacfc\uac00 \uc788\ub294\uc9c0 \ud655\uc778\ud574\ubcfc\uae4c\uc694?<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\ubb34\uc5c7\uc774 \ubb38\uc81c\uc600\uc744\uae4c?<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">APM \ub300\uc2dc\ubcf4\ub4dc\uc5d0 \ud45c\uc2dc\ub418\ub294 \uac01 \ucc28\ud2b8\uc758 \ub370\uc774\ud130\ub294 \uc218\uc9d1 \ub300\uc0c1\ubcc4, \ucc28\ud2b8\uc758 \uc885\ub958\ubcc4\ub85c 1\ucd08\ub9c8\ub2e4 \uc800\uc7a5 \ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubaa8\ub2c8\ud130\ub9c1 \ub300\uc0c1\uc774 \ub9ce\uc544\uc9c8\uc218\ub85d \uc870\ud68c \uc18d\ub3c4\ub294 \ub290\ub824\uc9c8 \uc218 \ubc16\uc5d0 \uc5c6\ub294\ub370\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0ac\uc6a9\uc790\uc5d0\uac8c \uc801\uc808\ud55c \uac1c\uc218\uc758 \ubaa8\ub2c8\ud130\ub9c1 \ub300\uc0c1\uc744 \uc720\uc9c0\ud560 \uac83\uc744 \uad8c\uc7a5\ud558\uc5ec\ub3c4 \uc774\uac83\uc744 \uac15\uc81c\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \ud83d\ude05<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac1c\ubcc4\uc758 \uc870\ud68c\ub294 \uc544\ubb34\ub9ac \ube60\ub974\ub354\ub77c\ub3c4 \ub514\uc2a4\ud06c I\/O \uc640 \uc9c1\uacb0\ub418\uc5b4 \uc788\ub294 \ub370\uc774\ud130 \uc870\ud68c\uc778\ub9cc\ud07c \ubcd1\ub82c \uc870\ud68c \uc2dc\ub3c4\uac00 \uc774\ub8e8\uc5b4\uc9c0\uba74 \ub300\ubd80\ubd84\uc758 \uc2a4\ub808\ub4dc\uac00 \uc791\uc5c5\uc744 \ucc98\ub9ac\ud558\ub294 \uc0c1\ud0dc\uac00 \ub418\uc5b4 \uc774\ud6c4\uc758 \uc694\uccad\uc740 \ub300\uae30 \uc0c1\ud0dc\uac00 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"atomic\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">2022-03-30 00:00:03.979 [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=4258), finish=750\/1000, wait=717, process=32\n 2022-03-30 00:00:04.002 [:ME:CommandFromViewServerProcessor] WARN  c.a.d.n.CommandFromViewServerHandler - Request from view takes much time to finish. request=CommandRequest(key=520:70,bodyLength=2098), finish=783\/1000, wait=717, process=65<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc98\ub9ac \uc2dc\uac04(process)\uc740 \uc5bc\ub9c8 \ub418\uc9c0 \uc54a\uc9c0\ub9cc \ub300\uae30\uc2dc\uac04(wait) \uc774 \uc0c1\ub2f9\ud788 \ud070 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. wait \uc744 \uc904\uc774\ub824\uba74 \uac01\uac01\uc758 \uc791\uc740 \ud0dc\uc2a4\ud06c\uc758 \ucc98\ub9ac \uc2dc\uac04\uc744 \ub354\uc6b1 \uc904\uc774\uba74 \ub429\ub2c8\ub2e4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uad8c\uc7a5\uc548\uc744 \uc9c0\ud0a4\uc9c0 \uc54a\uc544\ub3c4 \uc5b4\ub290 \uc815\ub3c4\uc758 \uc0ac\uc6a9\uc131\uc740 \ubcf4\uc7a5\ud574\uc57c \ud558\uae30\uc5d0 \ubcd1\ubaa9\uc9c0\uc810\uc744 \uc815\ud655\ud788 \ud30c\uc545\ud558\uace0 \uc751\ub2f5\uc2dc\uac04 \uac1c\uc120\uc744 \uc2dc\ub3c4\ud574 \ubd05\uc2dc\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b0\uc120 \uc218\uc9d1\uc11c\ubc84\uc5d0 APM \uc5d0\uc774\uc804\ud2b8\ub97c \uc124\uce58\ud558\uace0 \ud558\ub8e8 \ub3d9\uc548 \uc218\uc9d1\ub41c \ub370\uc774\ud130\ub97c \uc870\ud68c\ud574\ubd24\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"552\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_12-1024x552.png\" alt=\"\" class=\"wp-image-10732\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_12-1024x552.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_12-300x162.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">FlameScope \uc758 \ube68\uac04 \ubd80\ubd84\uc744 \ub4dc\ub798\uadf8 \ud574\ubcf4\ub2c8 TopMethod \uc5d0 \ud45c\uc2dc\ub41c \ub0b4\uc6a9\uc744 \ud1a0\ub300\ub85c RandomAccessFile \uc77d\uae30\uc5d0 \ub300\ubd80\ubd84\uc758 \uc2dc\uac04\uc774 \uc18c\uc694\ub418\uc5c8\uc74c\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc9c0\uc18d\uc801\uc778 \ud30c\uc77c \uc77d\uae30\uac00 \uc2dc\ub3c4\ub41c \uac83\uc774 \uc6d0\uc778\uc77c \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\uac1c\uc120 \uc2dc\ub3c4 &#8211; 1<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ubd80\ubd84\uc758 \uc2dc\uac04\uc774 \ud30c\uc77c \uc77d\uae30\uc5d0\uc11c \uc18c\uc694\ub418\uace0 \uc788\ub294\ub370 \uc5b4\ub5bb\uac8c \uc774\uac83\uc744 \ub354 \ube60\ub974\uac8c \ud560 \uc218 \uc788\uc744\uae4c\uc694?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\ubc14\uc5d0\ub3c4 \ud30c\uc77c\uc744 \uba54\ubaa8\ub9ac\uc5d0 \uc9c1\uc811 \ub9e4\ud551\ud558\uc5ec \uc77d\uace0 \uc4f0\ub294 \uba54\ubaa8\ub9ac \ub9f5 \ud30c\uc77c \uad6c\ud604(Memory-Mapped File)\uc744 \ud560 \uc218 \uc788\uc9c0\ub9cc \uc8fc\uc758\ub97c \uae30\uc6b8\uc5ec\uc57c \ud558\ub294 \ubd80\ubd84\uc774 \ub2e4\uc18c \uc874\uc7ac\ud558\uae30\uc5d0 \ub2e4\ub978 \ubd80\ubd84\uc744 \uc880 \ub354 \uc0b4\ud3b4\ubd05\uc2dc\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ec\uae30\uc11c\ub294 \ubd84\ud64d\uc0c9 \uc601\uc5ed\uc774 \uac00\uc7a5 \ub108\ube44\uac00 \ub113\uc740\ub370 \uc774 \uac00\uc6b4\ub370 AbstractRecord.toObjectDB \ub77c\ub294 \ubd80\ubd84\uc774 \ub208\uc5d0 \ub755\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"568\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_13-1024x568.png\" alt=\"\" class=\"wp-image-10733\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_13-1024x568.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_13-300x166.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc704 \uba54\uc18c\ub4dc\ub4e4\uc740 RealtimeObjectRecord.read \ub85c InputStream \uc73c\ub85c\ubd80\ud130 \ubc14\uc774\ud2b8\ub97c \uc815\ud574\uc9c4 \uc21c\uc11c\ub300\ub85c \uc77d\uc5b4 \uac1d\uccb4\ub85c \ubcc0\ud658\ud558\ub294 \ub0b4\uc6a9\uc744 \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ubd80\ubd84\uc774 \ucd1d 19.05% \ub97c \ucc28\uc9c0\ud558\uace0 \uc788\uc73c\ub2c8 \uc5ec\uae30\ub97c \ube60\ub974\uac8c \ud558\uba74 \uc131\ub2a5\uc774 \uc870\uae08 \ub098\uc544\uc9c0\uc9c0 \uc54a\uc744\uae4c\ub77c\ub294 \uc0dd\uac01\uc774 \ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"atomic\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">protected IRecord read(InputStream in, boolean db) {\n    if (!db) {\n        this.time = TcpUtil.getlong(in);\n    }\n\n    this.otype = TcpUtil.getbyte(in);\n    this.oid = TcpUtil.getint(in);\n    int count = TcpUtil.getshort(in);\n\n    for (int t = 0; t &lt; count; t++) {\n        short key = TcpUtil.getshort(in);\n        TYPE value = TypeUtil.next(in);\n        this.putValue(key, value);\n    }\n\n    readTrustRangePart(count, in);\n    return this;\n}\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u201c\ub531\ud788 \uac1c\uc120\ud560 \ubd80\ubd84\uc774 \uc5c6\uc5b4\ubcf4\uc774\ub294\ub370.. NIO \uc758 \ubc14\uc774\ud2b8 \ubc84\ud37c\ub97c \uc774\uc6a9\ud558\uba74 \uc880 \ub354 \uad1c\ucc2e\uc9c0 \uc54a\uc744\uae4c? \ud639\uc5ec\ub098 \uba54\ubaa8\ub9ac \ub9f5\uc744 \uc4f0\uac8c \ub418\ub2e4\uba74 \uc911\uac04 \ubcc0\ud658 \ub2e8\uacc4\ub3c4 \uc5c6\uc568 \uc218 \uc788\uace0..\u201c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc14\uc774\ud2b8\ub97c \ud578\ub4e4\ub9c1\ud558\uae30\ub3c4 \ub354 \ud3b8\ud558\uae30\ub3c4 \ud558\ub2c8 ByteBuffer \ub97c \uc774\uc6a9\ud558\ub294 \ubc29\ubc95\uc73c\ub85c \ubcc0\uacbd\ud574\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"atomic\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Override\npublic IRecord read(ByteBuffer bb, boolean db) {\n    if (!db) {\n        this.time = bb.getLong();\n    }\n\n    this.otype = bb.get();\n    this.oid = bb.getInt();\n    int count = bb.getShort();\n\n    for (int t = 0; t &lt; count; t++) {\n        short key = bb.getShort();\n        TYPE value = TypeUtilV2.next(bb);\n        this.putValue(key, value);\n    }\n\n    return this;\n}\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcc0\uacbd\ub41c \ucf54\ub4dc\ub97c \ubc18\uc601\ud558\uace0 \ub2e4\uc2dc \uc870\ud68c\ub41c \uacb0\uacfc\ub97c \ud655\uc778\ud574\ubcfc\uae4c\uc694?<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"543\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_14-1024x543.png\" alt=\"\" class=\"wp-image-10734\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_14-1024x543.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_14-300x159.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc74c.. \uc6b0\uc120 FlameScope \uc758 \uc0c9\uc0c1\uc774 \uc804\ubcf4\ub2e4 \uc605\uc5b4\uc84c\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac83\uc740 \uc5b4\ub290\uc815\ub3c4 \uc2a4\ub808\ub4dc\uc5d0\uc11c \uc218\ud589\ub418\ub294 \ud0dc\uc2a4\ud06c\uc758 \uc2dc\uac04\uc774 \uc804\ubcf4\ub2e4 \uc9e7\uc544\uc84c\uc74c\uc744 \uc554\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\ub2e8\uc758 FlameGraph \uc5d0\uc11c\ub294 AbstractRecord.toObjectDB \uac00 \ucc28\uc9c0\ud558\ub294 \ube44\uc728\uc774 9.03% \uc778 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc218\uce58\uc0c1\uc774\uae34 \ud558\uc9c0\ub9cc 10% \uac00\ub7c9 \ud638\ucd9c \ube48\ub3c4\uac00 \uac10\uc18c\ud588\uc2b5\ub2c8\ub2e4!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88\uc5d4 X-View \ucc28\ud2b8\ub85c \ube44\uad50\ud574\ubcf4\uba74 \uc5b4\ub5a8\uae4c\uc694?<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"541\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_15-1024x541.png\" alt=\"\" class=\"wp-image-10735\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_15-1024x541.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_15-300x158.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>\uac1c\uc120 \ud6c4<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"571\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_16-1024x571.png\" alt=\"\" class=\"wp-image-10736\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_16-1024x571.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_16-300x167.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9c8\uce58 \ud30c\ub3c4\uc640 \uac19\uc740 \ub108\uc6b8 \ubaa8\uc591\uc774 \ub208\uc5d0 \ub4e4\uc5b4\uc624\uae30\ub294 \ud558\uc9c0\ub9cc 40ms ~ 110ms \uc0ac\uc774\uc758 \ubd84\ud3ec\uac00 \ub9ce\uc774 \uc0ac\ub77c\uc9c4 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0dd\uac01\ubcf4\ub2e4 \ub9ce\uc740 \uc218\uc758 \uc694\uccad \uc751\ub2f5\uc2dc\uac04\uc774 \uac1c\uc120\ub418\uc5c8\uc2b5\ub2c8\ub2e4!<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\uac1c\uc120\uc2dc\ub3c4 &#8211; 2<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ucbe4\uc5d0\uc11c \uba48\ucd9c \uc218\ub3c4 \uc788\uc5c8\uc9c0\ub9cc Y \uc528\ub294 \ud30c\ub3c4\ucc98\ub7fc \uc704\ucabd\uc5d0 \ub0a8\uc544\uc788\ub294 \ud2b8\ub79c\uc7ad\uc158\uc758 \uc751\ub2f5\uc2dc\uac04\ub3c4 \uc544\ub798\ucabd\uc73c\ub85c \ub0b4\ub824\ubcf4\uace0 \uc2f6\ub2e4\ub294 \uc695\uad6c\ub97c \ucc38\uc744 \uc218\uac00 \uc5c6\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc870\uae08\ub354 \ub178\ub825\uc744 \uae30\uc6b8\uc5ec <strong>\uac1c\uc120\uc2dc\ub3c4 &#8211; 1<\/strong> \uc5d0\uc11c \uc5b8\uae09\ud55c Memory-Mapped File \uc744 \uc774\uc6a9\ud574\uc11c \uc77d\uae30 \ubd80\ubd84\uc744 \ubcc0\uacbd\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"atomic\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">private val map = inner.raf().channel.map(FileChannel.MapMode.READ_ONLY, 0, inner.length())<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ud604\uc758 \uac04\ub2e8\ud568\uc744 \ucd94\uad6c\ud558\uae30 \uc704\ud574 \uc77d\uae30 \uc804\uc6a9 \uba54\ubaa8\ub9ac \ub9f5\uc744 \uc37c\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub450\uadfc\uac70\ub9ac\ub294 \ub9c8\uc74c\uc744 \uac00\ub77c \uc549\ud788\uace0 \ucf54\ub4dc\ub97c \ubc18\uc601\ud55c Y \uc528\ub294 SFR \ud654\uba74\uc73c\ub85c \uc774\ub3d9\ud558\uc5ec \uc870\ud68c \ubc84\ud2bc\uc744 \ub20c\ub800\uc2b5\ub2c8\ub2e4!<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_17-1024x578.png\" alt=\"\" class=\"wp-image-10737\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_17-1024x578.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_17-300x169.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc624.. \uc774\uc81c\ub294 TopMethod \uc5d0 RandomAccess \uad00\ub828 \ub0b4\uc6a9\uc774 \uac70\uc758 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X-View \ub85c \uc870\ud68c\ud588\uc744\ub54c\ub3c4 \ucc28\uc774\uac00 \uc788\uc744\uae4c\uc694?<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_18-1024x572.png\" alt=\"\" class=\"wp-image-10738\" srcset=\"https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_18-1024x572.png 1024w, https:\/\/jennifersoft.com\/ko\/wp-content\/uploads\/sites\/2\/2022\/05\/SFR_18-300x168.png 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub4dc\ub514\uc5b4 \uc77c\ubd80 \ud2b8\ub79c\uc7ad\uc158\uc744 \uc81c\uc678\ud55c \ub300\ub2e4\uc218\uc758 \ud2b8\ub79c\uc7ad\uc158\uc758 \uc751\ub2f5\uc2dc\uac04\uc774 10ms \ubbf8\ub9cc\uc73c\ub85c \uac10\uc18c\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub85c\uc368 \ub300\uc2dc\ubcf4\ub4dc \ucc28\ud2b8\uc758 \uc870\ud68c \uc131\ub2a5\uc774 \uac1c\uc120\ub418\uc5c8\uc74c\uc744 \ud655\uc2e0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc81c \uc774\uc288\ub85c \uc62c\ub77c\uc654\ub358 \uac1c\ubcc4 \uc694\uccad\uc774 \ub290\ub9b0..(\ubd88\uacfc 200ms \uc774\ub77c \ud560\uc9c0\ub77c\ub3c4..) \ud604\uc0c1\uc740 \ud06c\uac8c \uac1c\uc120\ub420 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4. \uad8c\uace0\uc548\uc744 \ubc97\uc5b4\ub09c \ub2e4\uc218\uc758 \uc694\uccad\uc5d0\ub3c4 \uc5b4\ub290 \uc815\ub3c4\ub294 \uc798 \ucc98\ub9ac\ud560 \uc218 \uc788\uaca0\uc8e0?!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uacb0\ub860<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uacfc\uac70 \ud504\ub85c\ud30c\uc77c\uc5d0\ub9cc \uc758\uc874\ud558\uc5ec \uc131\ub2a5\uac1c\uc120\uc744 \ud560\ub54c \uacaa\uc5c8\ub358 \uc5ec\ub7ec\uc77c\ub4e4\uc774 \uae30\uc5b5\uc5d0 \ub0a8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub85c\ud30c\uc77c\uc774 \ub108\ubb34 \ub9ce\uc544 \uc81c\ub300\ub85c \uc870\ud68c\ud558\uae30\ub3c4 \ud798\ub4e4\ub54c\ub3c4 \uc788\uc5c8\uace0 \uc870\ud68c\ub41c \ud504\ub85c\ud30c\uc77c\uc758 \uac1c\ubcc4 \uc751\ub2f5\uc2dc\uac04\uc774 \ub108\ubb34 \uc791\uc544\uc11c \ubd84\uc11d\uc5d0 \uc560\ub97c \uba39\uae30\ub3c4 \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7f4\ub54c\ub9c8\ub2e4 \uc131\ub2a5\ubd84\uc11d \ub3c4\uad6c\ub97c \ub9cc\ub4e4\uace0 \uc788\uc74c\uc5d0\ub3c4 \ub85c\uadf8\uc5d0 \uac01\uc885 \ub2e8\uc11c\ub97c \ucd9c\ub825\ud558\uac70\ub098 \ub2e4\ub978 \ubd84\uc11d\ub3c4\uad6c\uc5d0 \uc758\uc874\ud560 \uc218 \ubc16\uc5d0 \uc5c6\ub294 \ud604\uc2e4\uc744 \uadf9\ubcf5\ud558\uace0 \uc2f6\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0c1\ub2f9 \uae30\uac04\ub3d9\uc548 VisualVM \uc758 \uc18c\uc2a4\ucf54\ub4dc\ub3c4 \uc77d\uc5b4\ubcf4\uace0 \ub2e4\uc218\uc758 \uc624\ud508\uc18c\uc2a4\ub97c \ucc3e\uc544\ubcf4\uba70 \uc81c\ub300\ub85c \ub41c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \uae30\ubc18 \ubd84\uc11d \ub3c4\uad6c\ub97c \ucc3e\uc544 \ud574\ub9e4\uae30\ub3c4 \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f9\uc2dc \uc0d8\ud50c\ub9c1\uc740 \uc9c0\uae08\ubcf4\ub2e4 \ub354 \uc0dd\uc18c\ud55c \uac1c\ub150\uc774\uc5c8\uae30\uc5d0 \ud558\ub098\uc758 \uc544\uc774\ub514\uc5b4\uac00 \uae30\ub2a5\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\uae30\uae4c\uc9c0 5\ub144\ub3c4 \ub118\ub294 \uc2dc\uac04\uc774 \uac78\ub838\ub2e4\ub294 \uc810\uc5d0\uc11c \uc544\uc26c\uc6c0\uc774 \ub0a8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ub2a5\uc744 \uae30\ud68d\ud558\uace0 \uac1c\ubc1c\ud558\uba74\uc11c \uc624\ub79c \uae30\uac04\ub3d9\uc548 \uc0d8\ud50c\ub9c1\uc774\ub77c\ub294 \uae30\ub2a5\uc758 \uc0ac\uc6a9\uc790\ub85c\uc11c \uacaa\uc740 \uacbd\ud5d8\uc744 \ucd5c\ub300\ud55c \ubc18\uc601\ud558\ub824 \ub178\ub825\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SFR\uc740 \uc800\uc758 \uacbd\ud5d8, \ub3d9\ub8cc \uac1c\ubc1c\uc790\uc758 \uacf5\uac10,  \uc81c\ud488 \ub514\uc790\uc774\ub108\uc640\uc758 \uc5f4\ub764 \ud1a0\ub860\uc758 \uacb0\uacfc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac1c\ubc1c\ud558\uba74\uc11c \uadf8\ub9ac\uace0 \uc9c1\uc811 \uc774\uc6a9\ud574\ubcf4\uba74\uc11c \uacbd\ud5d8\ud55c \uac1c\uc120 \ud6a8\uacfc\ub97c \ub354 \ub9ce\uc740 \uc0ac\uc6a9\uc790\ub4e4\uc774 \ub204\ub9b4 \uc218 \uc788\uae30\ub97c \ubc14\ub77c\uba70 \ubcf8 \uae00\uc744 \ub9c8\uce69\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"\uc9c0\ub09c https:\/\/jennifersoft.com\/ko\/blog\/tech\/2021-10-18\/ \uc5d0 \uc18c\uac1c\ub41c \uac1c\ubcc4 \ud2b8\ub79c\uc7ad\uc158\uc744 \ub300\uc0c1\uc73c\ub85c \ud55c \uc2a4\ud0dd\ud2b8\ub808\uc774\uc2a4 \ubd84\uc11d \uae30\ub2a5\uc744 \uc774\uc6a9\ud55c Jira \uc758 \uc131\ub2a5 \uac1c\uc120 \ud6c4 \uadf8 \ub3d9\uc548 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