[B! Linux] kimutanskã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

kimutansk id:kimutansk

Linuxã«é–¢ã™ã‚‹kimutanskã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (169)

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

è©³è§£ ã‚·ã‚¹ãƒ†ãƒ ãƒ»ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹
TOPICS System/Network ç™ºè¡Œå¹´æœˆæ—¥ 2017å¹´02æœˆ PRINT LENGTH 784 ISBN 978-4-87311-790-4 åŽŸæ›¸ Systems Performance FORMAT PDF EPUB æœ¬æ›¸ã¯ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚ºç’°å¢ƒã¨ã‚¯ãƒ©ã‚¦ãƒ‰ç’°å¢ƒã®ä¸¡æ–¹ã‚’å¯¾è±¡ã¨ã—ãŸã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ ãŠã‚ˆã³ã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ ã®ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã«ãŠã‘ã‚‹ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹åˆ†æžã¨å‘ä¸Šã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚ä¸»ã«Linuxã¨Solarisãƒ™ãƒ¼ã‚¹ã®ã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ ã«å«ã¾ã‚Œã‚‹ãƒ„ãƒ¼ãƒ«ã¨ãã®ä½¿ç”¨ä¾‹ã‚„ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°å¯èƒ½ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã®è¨å®šã‚’é€šã˜ã¦ã‚·ã‚¹ãƒ†ãƒ ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å¼•ãå‡ºã™æ‰‹æ³•ã‚’å¦ã³ã¾ã™ã€‚CPUã‚„ãƒ¡ãƒ¢ãƒªã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ãªã©å€‹åˆ¥ãƒ†ãƒ¼ãƒžã”ã¨ã«è¨ã‘ã‚‰ã‚ŒãŸå„ç« ã®å‰åŠã§ã¯ã€ç”¨èªžã€è€ƒãˆæ–¹ã€æ–¹æ³•è«–ã«ã¤ã„ã¦è¿°ã¹ã€å¾ŒåŠã§ã¯å®Ÿè£…ã®å…·ä½“ä¾‹ã‚’ç¤ºã—ã¤ã¤ã€ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã€åˆ†æžãƒ„ãƒ¼ãƒ«ã€ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãªã©ã‚’è§£
kimutansk 2017/02/09
ã¤ã„ã«ã‚ªãƒ©ã‚¤ãƒªãƒ¼ã®ã‚µã‚¤ãƒˆã«ã‚‚æ£å¼æŽ²è¼‰ã€‚ã‚ã¨ã¯é›»åç‰ˆãŒã„ã¤å‡ºã‚‹ã‹ã§ã™ã€‚ã§ãã‚Œã°ç‰©ç†æœ¬ã¨åŒæ™‚ã«å‡ºã—ã¦ã»ã—ã„ã§ã™ãŒãƒ»ãƒ»ãƒ»

Linux

performance
ãƒªãƒ³ã‚¯
Dockerãƒ›ã‚¹ãƒˆã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å¼•ãå‡ºã™TCPã‚«ãƒ¼ãƒãƒ«ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° - tehepero note(ãƒ»Ï‰<)
2016 - 08 - 12 Docker ãƒ›ã‚¹ãƒˆã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å¼•ãå‡ºã™TCPã‚«ãƒ¼ãƒãƒ«ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° Docker Linux ã‚‚ã†åŠå¹´ãã‚‰ã„ãƒ•ãƒ«Dockerã§microservicesãªã‚µãƒ¼ãƒ“ã‚¹ã‚’é‹ç”¨ã—ã¦ã‚‹ã‚“ã§ã™ãŒã€ã‚¤ãƒžã‚¤ãƒãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å‡ºã—åˆ‡ã‚Œã¦ã„ãªã„ãªã¨ã„ã†é¢ãŒã‚ã‚Šã¾ã—ã¦ã€ä»Šå›žDocker ãƒ›ã‚¹ãƒˆã® TCP ã‚«ãƒ¼ãƒãƒ« ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã‚’æŠœæœ¬çš„ã«è¦‹ç›´ã—ã¾ã—ãŸã€‚ ãã—ãŸã‚‰åŠ‡çš„ã«ç—‡çŠ¶ãŒæ”¹å–„ã—ã¦ã€ ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ æ•°ã‚‚å‰Šæ¸›ã§ããŸä¸Šã«å®‰å®šã—ã¦ ãƒ¡ã‚·ã‚¦ãƒžçŠ¶æ…‹ ã«ãªã£ãŸã®ã§ç´¹ä»‹ã—ã¾ã™ã€‚å®Ÿéš›åŠ¹æžœãŒã‚ã£ãŸã®ã§ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒã‚¤ãƒ³ãƒˆã¨ã—ã¦ã¯ã‚ã‚‹ç¨‹åº¦æ£è§£ã§ã‚ã£ãŸã¨è€ƒãˆã¦ã„ã¾ã™ãŒã€ã‚‚ã¡ã‚ã‚“æ‰±ã£ã¦ã‚‹ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ç‰¹æ€§ã«ã‚‚ã‚ˆã‚‹ã¯ãšãªã®ã§ä¸€ã¤ã® ã‚±ãƒ¼ã‚¹ã‚¹ã‚¿ãƒ‡ã‚£ ã§ã‚ã‚‹ã“ã¨ã‚’ã”äº†æ‰¿é ‚ã‘ã‚Œã°ã¨ã€‚ å‰æ ã¾ãšã¯ä»Šå›žã®ãŠè©±ã®å‰æã‚’ã€‚ã“ã‚“ãªç’°å¢ƒã§ã™ã€‚ EC2 c3.xlarge ãƒ›ã‚¹ãƒˆã¯ Ubuntu ï¼ˆEC2 Opt
kimutansk 2016/08/12
ã‚³ãƒ³ãƒ†ãƒŠã§ã¯ãªããƒ›ã‚¹ãƒˆã§èª¿æ•´ã—ã‚ã¨ã„ã†ã®ã¯ãã®é€šã‚Šã§ã€ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã¯ã‚ã‚ŠãŒãŸã„ã€‚ã‚³ãƒ³ãƒ†ãƒŠå´ã®è¨å®šç”¨é€”ã¯ãã†ã„ã†ç”¨é€”ã¨è€ƒãˆã‚‹ã¨ç¢ºã‹ã«ã€‚

docker

performance

linux
ãƒªãƒ³ã‚¯
Mackerelã«ãŠã‘ã‚‹æ™‚ç³»åˆ—ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®æ€§èƒ½æ”¹å–„ / Performance Improvement of TSDB in Mackerel
ãƒšãƒ‘ãƒœãƒ»ã¯ã¦ãª æŠ€è¡“å¤§ä¼šã€œã‚¤ãƒ³ãƒ•ãƒ©æŠ€è¡“åŸºç›¤ã€œ@ç¦å²¡
kimutansk 2016/07/10
å°è¦æ¨¡ãªãƒ©ãƒ³ãƒ€ãƒ IOãŒå¤§é‡ç™ºç”Ÿã™ã‚‹å ´åˆã€ã“ã†ã„ã†å½¢ã§ã‚¹ãƒ©ãƒƒã‚·ãƒ³ã‚°ãŒç™ºç”Ÿã™ã‚‹ã‚±ãƒ¼ã‚¹ã‚‚ã‚ã‚‹ã‚ã‘ã§ã™ã‹ã€‚è§£èª¬ã®æµã‚Œé¢ç™½ã„ã§ã™ãã€‚

performance

linux
ãƒªãƒ³ã‚¯
Windows ã§ Ubuntu ãƒã‚¤ãƒŠãƒªï¼ˆbashï¼‰ãŒå‹•ä½œã™ã‚‹ã“ã¨ã®æ¦‚ç•¥ - è’¼ã®çŽ‹åº§ãƒ»è£å£
ãƒžã‚¤ã‚¯ãƒã‚½ãƒ•ãƒˆã®ãƒãƒ³ã‚»ãƒ«ãƒžãƒ³ã®Blogï¼š Developers can run Bash Shell and user-mode Ubuntu Linux binaries on Windows 10 Ubuntuã®ä¸ã®äººã®Blogï¼š Ubuntu on Windows â€” The Ubuntu Userspace for Windows Developers ã“ã®2ã¤ã®Blogã§å®Ÿæ…‹ãŒæ˜Žç¢ºã«ãªã£ãŸã®ã§ã¾ã¨ã‚ã¦ã¿ã¾ã™ã€‚ ä½¿ç”¨å¯èƒ½ã«ãªã‚‹OSã¾ã‚‚ãªããƒªãƒªãƒ¼ã‚¹ã•ã‚Œã‚‹äºˆå®šã®Windows 10 â€Anniversaryâ€ ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã§ä½¿ç”¨å¯èƒ½ã«ãªã‚Šã¾ã™ã€‚ã“ã®ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã§ã€é–‹ç™ºè€…å‘ã‘ã®æ©Ÿèƒ½ã¨ã—ã¦è¿½åŠ ã•ã‚Œã¾ã™ã€‚ æ©Ÿèƒ½ã®è¿½åŠ ã§ã€Windowsã®è¨å®šã§é–‹ç™ºè€…ãƒ¢ãƒ¼ãƒ‰ã‚’æœ‰åŠ¹ã«ã™ã‚‹ã¨ä½¿ç”¨ã§ãã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ã“ã‚Œã§ãƒã‚¤ãƒ†ã‚£ãƒ–ãªãƒ¦ãƒ¼ã‚¶ãƒ¼ ãƒ¢ãƒ¼ãƒ‰ã®Linuxã‚·ã‚§ãƒ«ãŒä½¿ãˆã‚‹ã‚ˆã†ã«ãªã‚Šã€bashã‚’èµ·å‹•ã™ã‚‹ã¨Wind
kimutansk 2016/03/31
ã€Œãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã«ã€Linux ã® syscalls ã‚’ Windows ã® syscalls ã«å¤‰æ›ã—å‡¦ç†ã—ã¾ã™ã€‚ã€ ãƒžã‚¸ã§ã™ã‹ã€‚

Windows10

Linux
ãƒªãƒ³ã‚¯
ã€ŒPCã‚’Win7ã®ã¾ã¾ã«ã—ã¦ãŠããŸã„ã®ã«å¼·åˆ¶çš„ã«Win10ã«ã™ã‚‹MSãŒå«Œã ï¼Linuxã«è¡Œãï¼ã€ã¨ã„ã†æ–¹ã¸Linuxãƒ¦ãƒ¼ã‚¶ãƒ¼ã¨ã—ã¦è¨€ã£ã¦ãŠããŸã„ã“ã¨
ã€ŒPCã‚’Win7ã®ã¾ã¾ã«ã—ã¦ãŠããŸã„ã®ã«å¼·åˆ¶çš„ã«Win10ã«ã™ã‚‹MSãŒå«Œã ï¼Macã«è¡Œãï¼ã€ã¨ã„ã†æ–¹ã¸Macãƒ¦ãƒ¼ã‚¶ãƒ¼ã¨ã—ã¦è¨€ã£ã¦ãŠããŸã„ã“ã¨ ã¨ã„ã†è¨˜äº‹ã‚’è¦‹ã‹ã‘ãŸã®ã§ã€Linux ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ãƒ¦ãƒ¼ã‚¶ãƒ¼ã‹ã‚‰ã‚‚ä¸€è¨€ã ã‘è¨€ã£ã¦ãŠãã€‚ çµè«–ã‹ã‚‰ã€‚ ã€Œæ‚ªã„ã“ã¨ã¯è¨€ã‚ãªã„ã‹ã‚‰ã‚„ã‚ã¦ãŠã‘ï¼ã€ ä»¥å‰ã€ã„ã¾ã™ãWindowsã‚’æ¨ã¦ã¦ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ã§GNU/Linuxã‚’ä½¿ã†10+ã®ç†ç”±ã¨ã„ã†ã‚¨ãƒ³ãƒˆãƒªã‚’æ›¸ã„ãŸã“ã¨ãŒã‚ã‚‹ã®ã§ã€ä½¿ã£ã¡ã‚ƒã„ã‘ãªã„ã¿ãŸã„ãªã“ã¨ã‚’æ›¸ãã¨ã€ã€ŒãŠã„ãŠã„ã€ã„ã¾ã•ã‚‰ä½•è¨€ã£ã¦ã‚“ã ã‚ˆã€ã¨æ€ã‚ã‚Œã‚‹æ–¹ã‚‚å±…ã‚‹ã‹ã‚‚çŸ¥ã‚Œãªã„ã€‚ã ãŒã€ä»¥å‰ã®ã‚¨ãƒ³ãƒˆãƒªã®ä¸»æ—¨ã¯ã€ŒGNUã®Windowsç§»æ¤ç‰ˆã§ã‚ã‚‹Cygwinã‚’ä½¿ã†ãã‚‰ã„ã ã£ãŸã‚‰GNU/Linuxã¯ã„ã‹ãŒï¼Ÿã€ã¨ã„ã†ææ¡ˆã‚’ã™ã‚‹ãŸã‚ã®ã‚‚ã®ã§ã‚ã‚Šã€ã„ã‚ã°Cygwinã‚’ä½¿ã†ã‚ˆã†ãªIT æŠ€è¡“è€…å‘ã‘ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã§ã‚ã‚‹ã€‚CygwinãŒå¿…è¦ã ã¨ã„ã†ã“ã¨ã¯ã€UNIXãƒ©ã‚¤ã‚¯ãªãƒ„ãƒ¼ãƒ«ç¾¤ã‚’å¿…è¦ã¨ã™
kimutansk 2016/03/15
ã‚€ã—ã‚ã€è¨å®šã‚‚å‡ºæ¥ãªã„ã‚ˆã†ãªæ–¹ã¯ã„ã„æ©Ÿä¼šã§ã™ã‹ã‚‰PCã‚’æ¨ã¦ã¾ã—ã‚‡ã†ã€‚å›½ç”£ã‚¿ãƒ–ãƒ¬ãƒƒãƒˆãªã‚‰ãƒ‘ãƒƒãƒã§ãªã„ã‹ã‚‰OSã‚‚ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã•ã‚Œã¾ã›ã‚“ã‚ˆã€ãªã®ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚ï¼ˆãŠã„

Linux
ãƒªãƒ³ã‚¯
Linux kernel bug delivers corrupt TCP/IP data to Mesos, Kubernetes, Docker containers
(Edit: This article is now up on hacker news, feel free to discuss there) The Linux Kernel has a bug that causes containers that use veth devices for network routing (such as Docker on IPv6, Kubernetes, Google Container Engine, and Mesos) to not check TCP checksums. This results in applications incorrectly receiving corrupt data in a number of situations, such as with bad networking hardware. The
kimutansk 2016/02/14
Linux Kernelã«ãƒã‚°ãŒã‚ã‚Švethã®ä»®æƒ³NICã¸ã®ãƒ«ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã§å•é¡ŒãŒç™ºç”Ÿã™ã‚‹å¯èƒ½æ€§ãŒã‚ã‚‹ã¨ã„ã†è©±ã€‚Dockerã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆNATãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã ã¨å‡ºãªã„ã‚‚ã®ã®ã€çµæ§‹å¹…åºƒãã†ã€‚

container

Linux
ãƒªãƒ³ã‚¯
Linux Performance Analysis in 60,000 Milliseconds
You log in to a Linux server with a performance issue: what do you check in the first minute? At Netflix we have a massive EC2 Linux cloud, and numerous performance analysis tools to monitor and investigate its performance. These include Atlas for cloud-wide monitoring, and Vector for on-demand instance analysis. While those tools help us solve most issues, we sometimes need to login to an instanc
kimutansk 2015/12/02
ã¾ãšè¦‹ã‚‹ã®ã¯ãƒãƒ¼ãƒ‰ã‚¢ãƒ™ãƒ¬ãƒ¼ã‚¸>ã‚·ã‚¹ãƒ†ãƒ ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸>ãƒ¡ãƒ¢ãƒªçŠ¶æ³>CPUé–“åã‚Š>ãƒ—ãƒã‚»ã‚¹ã‚µãƒžãƒª>IO>ç©ºããƒ¡ãƒ¢ãƒª>NICã‚¹ãƒ«ãƒ¼ãƒ—ãƒƒãƒˆ>TCPãƒ¡ãƒˆãƒªã‚¯ã‚¹ã¨ã€‚

performance

Linux
ãƒªãƒ³ã‚¯
Accessing RStudio Server Open-Source
By default RStudio Server runs on port 8787 and accepts connections from all remote clients. After installation you should therefore be able to navigate a web browser to the following address to access the server: http://<server-ip>:8787 RStudio will prompt for a username and password, and will authenticate the user by checking the server's username and password database. A couple of notes related
kimutansk 2015/12/01
RStudioServerã€åŸºæœ¬çš„ã«ã¯OSã¨åŒæ§˜ã®ãƒ¦ãƒ¼ã‚¶ã‚’ç”¨ã„ã¦å‹•ä½œã™ã‚‹ãƒ»ãƒ»ï¼Ÿ

Linux

R
ãƒªãƒ³ã‚¯
ssh_configã®ã‚¹ã‚¹ãƒ¡
7. ã¤ã¾ã‚Š $ ssh -p 2222 very-long-user-name@very-long-server-name. example.com ã“ã‚Œã‚’ $ cat .ssh/config Host very Port 2222 User very-long-user-name HostName very-long-server-name.example.com $ ssh very ã“ã†ã—ã¦ãŠãã¨ ã“ã†ãªã‚‹ 8. $ scp -P 2222 very-long- user-name@very-long- server-name.example.com: hoge.txt ./ $ scp very:hoge.txt ./ $ rsync --port 2222 very- long-user-name@very-long- server-name.example.com: hoge
kimutansk 2015/10/16
HTTPProxyã‚’ä»‹ã—ã¦SSHãƒã‚°ã‚¤ãƒ³ã™ã‚‹ã“ã¨ã‚‚å¯èƒ½ã¨ã€‚ãŸã ã€Proxyå´ãŒè¨±å®¹ã—ã¦ã„ã‚‹å¿…è¦ã¯ã‚ã‚Šãã†ã§ã™ãŒã€‚ãã—ã¦ä¸Šç´šã¯ãƒ»ãƒ»ã•ã™ãŒã«ãã†ä½¿ã†ã“ã¨ã¯ãªã„ã§ã™ã‹ãã€‚

ssh

Linux
ãƒªãƒ³ã‚¯
SSHåŠ›ã‚’ã¤ã‘ã‚ˆã†
2. ã‚‚ãã˜ â–º ãŠã•ã‚‰ã„ â–º ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ(ssh/scp)ã®è©± ãƒãƒ¼ãƒˆè»¢é€ã®è©± å¤šæ®µssh ãã®ä»–ã®è»¢é€ã®è©±ãƒ»ä»–ã®ã‚ªãƒ—ã‚·ãƒ§ãƒ³ â–º ã‚µãƒ¼ãƒ(sshd)ã®è©± â–º ã¡ã‚‡ã£ã¨ã—ãŸç–‘å• â–º ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ã®è©± â–º ã¾ã¨ã‚ 2 / 62 5. RFC RFC 4250 The Secure Shell (SSH) Protocol Assigned Numbers RFC 4251 The Secure Shell (SSH) Protocol Architecture RFC 4252 The Secure Shell (SSH) Authentication Protocol RFC 4253 The Secure Shell (SSH) Transport Layer Protocol RFC 4254 The Secure Shell (SSH) Connection Protocol RF
kimutansk 2015/10/16
ncã§é€šä¿¡å…ˆã«ãã®ã¾ã¾é€šä¿¡è»¢é€ã™ã‚‹ã“ã¨ã§è¤‡æ•°æ®µå…ˆã«ãƒã‚°ã‚¤ãƒ³ã¨ã€ProxyCommandã§ãã‚Œã‚’ãƒãƒ¼ã‚«ãƒ«éµä¿æŒã€ç›´æŽ¥å®Ÿè¡Œå¯èƒ½ã¨ã€‚ãã‚ŒãŒconfigã«ã‹ã‘ã°å˜ç´”ãªã‚³ãƒžãƒ³ãƒ‰ã§å¯èƒ½ã¨ã€‚

ssh

Linux
ãƒªãƒ³ã‚¯
Linux OOM Killerã«ã¤ã„ã¦ - Qiita
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article?
kimutansk 2015/08/25
ã‚³ãƒžãƒ³ãƒ‰ã§å€™è£œã‚’ç¢ºèªã§ãã‚‹ã®ã¯çŸ¥ã‚Šã¾ã›ã‚“ã§ã—ãŸã€‚ã“ã‚Œã§äº‹å‰ã«äºˆæ¸¬ã¯å‡ºæ¥ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã‹ã€‚

OOM Killer

linux
ãƒªãƒ³ã‚¯
Apache Kafka, Samza, and the Unix Philosophy of Distributed Data | Confluent
Apache Kafka, Samza, and the Unix Philosophy of Distributed Data One of the things I realised while doing research for my book is that contemporary software engineering still has a lot to learn from the 1970s. As weâ€™re in such a fast-moving field, we often have a tendency of dismissing older ideas as irrelevant â€“ and consequently, we end up having to learn the same lessons over and over again, the
kimutansk 2015/08/06
#ApacheKafka Kafkaã¨Unix pipesã®å“²å¦ã€ã¨ã„ã†ã‹ã‚¹ã‚¿ãƒ³ã‚¹ãŒä¼¼ã¦ã„ã‚‹ã¨ã€‚ã“ã®ã‚ãŸã‚Šã¯ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãƒã‚¹ã‚„ã‚‰ã‚ãƒ¥ãƒ¼å‘¨ã‚Šã¯çµæ§‹ä¼¼ã‚‹ã®ã¯å‡ºãã†ã§ã™ãŒã€ã“ã†çµã³ã¤ã‘ã‚‹ã®ã¯é¢ç™½ã„

kafka

linux
ãƒªãƒ³ã‚¯
â€ç§ã®ç’°å¢ƒã§â€å¤§ããªãƒ†ã‚ã‚¹ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚’awkã§å‡¦ç†ã™ã‚‹ã¨ãã«catã§æŠ•ã’è¾¼ã‚€ã¨é€Ÿã„ç†ç”± - ablog
å¤§ããªãƒ†ã‚ã‚¹ãƒˆãƒ•ã‚¡ã‚¤ãƒ«ã‚’awkã§å‡¦ç†ã™ã‚‹ã¨ãã«catã§æŠ•ã’è¾¼ã‚€ã¨é€Ÿã„ç†ç”± - ablog ã‚’æ›¸ãã¾ã—ãŸãŒã€awk file > file ã‚ˆã‚Š cat file|awk > file ãŒé€Ÿã„ç’°å¢ƒã¯ç¨€ãªã‚ˆã†ãªã®ã§ã€ç§ã®ç’°å¢ƒã§ãªãœ cat file|awk > file ã®ã»ã†ãŒé€Ÿã„ã®ã‹èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ãƒ—ãƒã‚»ã‚¹ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ãŒé–¢ä¿‚ã—ã¦ã„ã‚‹ã‚ˆã†ã§ã™ã€‚ â†‘ã¯Perf + Flame Graphs ã§ã€awk file > file å®Ÿè¡Œæ™‚ã®ã‚³ãƒ¼ãƒ«ã‚¹ã‚¿ãƒƒã‚¯ã¨æ‰€è¦æ™‚é–“ã‚’å¯è¦–åŒ–ã—ãŸã‚‚ã®ã§ã™ã€‚ çµè«–(ãŸã¶ã‚“) SSDã®æš—å·åŒ–ãƒ»å¾©å·ã‚’ã‚«ãƒ¼ãƒãƒ«ã‚¹ãƒ¬ãƒƒãƒ‰ã§è¡Œãªã£ã¦ã„ã‚‹ã®ã¨ã€ãƒ—ãƒã‚»ã‚¹ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ãŒ awk ã¨ã‚«ãƒ¼ãƒãƒ«ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’åŒã˜ CPU ã«ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒªãƒ³ã‚°ã—ã¦ã„ãŸ(ä»–ã«ç©ºã„ã¦ã„ã‚‹ CPU ãŒã‚ã‚‹ã®ã«)ã€‚ awk file > file ã§ã¯æš—å·åŒ–ãƒ‡ãƒ¼ã‚¿ã‚’å¾©å·ã™ã‚‹ã‚«ãƒ¼ãƒãƒ«ã‚¹ãƒ¬ãƒƒãƒ‰ã¨ awk ã®ãƒ—ãƒã‚»ã‚¹ã‚’ãƒ—ãƒã‚»ã‚¹ã‚¹ã‚±
kimutansk 2015/08/04
ãªã‚‹ã»ã©ãƒ»ãƒ»ã€€ãŸã ã€ä½•æ•…awkãƒ—ãƒã‚»ã‚¹ã¯Kernelã¨åŒã˜CPUä¸Šã§å‹•ä½œã—ã¦ã—ã¾ã†ã‚“ã§ã—ã‚‡ã†ãã‡ã€‚

linux
ãƒªãƒ³ã‚¯
Linuxã‚«ãƒ¼ãƒãƒ«ã®readaheadã€ã†ã¾ãå‹•ã„ã¦ãªã„ã‚±ãƒ¼ã‚¹ãŒã‚ã‚‹ã®ã‹ã‚‚
You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
kimutansk 2015/07/29
ãƒ‘ã‚¤ãƒ—ã‚’æŒŸã‚€ã“ã¨ã«ã‚ˆã£ã¦ã“ã†ã„ã†ä½œç”¨ãŒã‚ã‚‹ã‚“ã§ã™ãã€‚ã€‚

Linux

read
ãƒªãƒ³ã‚¯
Systemdå…¥é–€(4) - serviceã‚¿ã‚¤ãƒ—Unitã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ« - ã‚ã‚‚ã‚ã‚‚
ã“ã®é€£è¼‰ã§ã¯ã€Fedora 17ã§ã®å®Ÿè£…ã‚’ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦ã€systemdã®è€ƒãˆæ–¹ã‚„ä»•çµ„ã¿ã€åˆ©ç”¨æ–¹æ³•ã‚’èª¬æ˜Žã—ã¾ã™ã€‚ä»Šå¾Œå‡ºã¦ãã‚‹äºˆå®šã®RHEL7ã§ã®å®Ÿè£…ã¨ã¯ç•°ãªã‚‹éƒ¨åˆ†ãŒã‚ã‚‹ã‹ã‚‚çŸ¥ã‚Œã¾ã›ã‚“ãŒã€ãã®ç‚¹ã¯ã”äº†æ‰¿ãã ã•ã„ã€‚ ä»Šå›žã¯ã€serviceã‚¿ã‚¤ãƒ—ã®Unitã«ã¤ã„ã¦ã€è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã®æ›¸ãæ–¹ã‚’èª¬æ˜Žã—ã¾ã™ã€‚ Unitè¨å®šãƒ•ã‚¡ã‚¤ãƒ« å‚è€ƒè³‡æ–™ ãƒ»systemd.unitã®manãƒšãƒ¼ã‚¸ï¼šè¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã®ä¸€èˆ¬çš„ãªèª¬æ˜Ž ãƒ»systemd.serviceã®manãƒšãƒ¼ã‚¸ï¼šserviceã‚¿ã‚¤ãƒ—Unitã®è¨å®šã‚ªãƒ—ã‚·ãƒ§ãƒ³ã®èª¬æ˜Ž ã€ŒSystemdå…¥é–€(1) - Unitã®æ¦‚å¿µã‚’ç†è§£ã™ã‚‹ã€ã§èª¬æ˜Žã—ãŸã‚ˆã†ã«ã€å„Unitã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã¯ã€/usr/lib/systemd/system/ä»¥ä¸‹ã¨/etc/systemd/system/ä»¥ä¸‹ã«ã‚ã‚Šã¾ã™ã€‚ä¸¡æ–¹ã®ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«åŒåã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ãŒã‚ã‚‹å ´åˆã¯ã€å¾Œè€…ï¼ˆ/etc/systemd/sys
kimutansk 2015/07/26
ExecStartPreã¯æ¯Žå›žå®Ÿè¡Œã•ã‚Œã‚‹ã®ã§åˆæœŸåŒ–ã‚³ãƒžãƒ³ãƒ‰ã®å ´åˆã¯è¤‡æ•°å›žå®Ÿè¡Œã—ã¦ã‚‚å•é¡Œãªã„ã‚ˆã†ã«ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã¨ã€‚ãƒ•ã‚©ã‚¢ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ã®æ–¹ãŒã‚·ãƒ³ãƒ—ãƒ«ã«ã™ã‚€ã¨

systemd

linux
ãƒªãƒ³ã‚¯
Systemdå…¥é–€(2) - Serviceã®æ“ä½œæ–¹æ³• - ã‚ã‚‚ã‚ã‚‚
ã“ã®é€£è¼‰ã§ã¯ã€Fedora 17ã§ã®å®Ÿè£…ã‚’ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦ã€systemdã®è€ƒãˆæ–¹ã‚„ä»•çµ„ã¿ã€åˆ©ç”¨æ–¹æ³•ã‚’èª¬æ˜Žã—ã¾ã™ã€‚ä»Šå¾Œå‡ºã¦ãã‚‹äºˆå®šã®RHEL7ã§ã®å®Ÿè£…ã¨ã¯ç•°ãªã‚‹éƒ¨åˆ†ãŒã‚ã‚‹ã‹ã‚‚çŸ¥ã‚Œã¾ã›ã‚“ãŒã€ãã®ç‚¹ã¯ã”äº†æ‰¿ãã ã•ã„ã€‚ å‰å›žã¯ã€systemdã®åŸºæœ¬æ¦‚å¿µã¨ãªã‚‹Unitã®èª¬æ˜Žã‚’ã—ã¾ã—ãŸã€‚ä»Šå›žã¯ã€æ—¥ã€…ã®ã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã§å¿…è¦ã¨ãªã‚‹ã€serviceã®æ“ä½œæ–¹æ³•ã‚’ã¾ã¨ã‚ã¾ã™ã€‚æ—§æ¥ã®chkconfigã‚³ãƒžãƒ³ãƒ‰ã€serviceã‚³ãƒžãƒ³ãƒ‰ã«ç›¸å½“ã™ã‚‹éƒ¨åˆ†ã§ã™ãã€‚ ã‚µãƒ¼ãƒ“ã‚¹ã®ç¢ºèª ç¾åœ¨ç¨¼åƒä¸ã®ã‚µãƒ¼ãƒ“ã‚¹ä¸€è¦§ # systemctl list-units --type=service UNIT LOAD ACTIVE SUB JOB DESCRIPTION auditd.service loaded active running Security Auditing Service crond.service loaded act
kimutansk 2015/07/21
ä»Šæ›´ã§ã™ãŒã€è‡ªå‰ã§rpmã‚’ä½œã‚‹ã“ã¨ã‚’è€ƒãˆã‚‹ã¨ã‚ã‚‹ç¨‹åº¦ã¯ã‚ã‹ã£ã¦ãªã„ã¨åŽ³ã—ã„ã§ã™ãã‡

linux
ãƒªãƒ³ã‚¯
Etsukata blog: FreakOut DSP å…¥æœã‚µãƒ¼ãƒã® CPU ä½¿ç”¨çŽ‡ã‚’ 30% å‰Šæ¸›ã™ã‚‹ Performance Tuning
ã¯ã˜ã‚ã« å‹¤å‹™å…ˆã® FreakOut ç¤¾ã§ã¯ RTB ã§åºƒå‘Šæž ã‚’è²·ã„ä»˜ã‘ã‚‹ DSP ã®é–‹ç™ºãƒ»é‹ç”¨ã‚’è¡Œã£ã¦ã„ã¾ã™ã€‚RTB ã¨ã¯ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆåºƒå‘Šã®ã‚¤ãƒ³ãƒ—ãƒ¬ãƒƒã‚·ãƒ§ãƒ³ãŒç”Ÿã˜ã‚‹æ¯Žã«ã€åºƒå‘Šæž ã®ç«¶äº‰å…¥æœã‚’è¡Œã†ä»•çµ„ã¿ã§ã™ã€‚ DSP ã¨ã¯ã€ RTB ã«ãŠã„ã¦ã€ç«¶äº‰å…¥æœã‚’ã™ã‚‹å´ã®ã‚·ã‚¹ãƒ†ãƒ ã«ãªã‚Šã¾ã™ã€‚åºƒå‘Šæž /åºƒå‘Šã‚’è¦‹ã¦ã„ã‚‹äºº ã«å¯¾ã—ã€æœ€é©ãªåºƒå‘Šã‚’ã€æœ€é©ãªã‚¿ã‚¤ãƒŸãƒ³ã‚°ã§å±Šã‘ã‚‹æ©Ÿèƒ½ã‚’åºƒå‘Šä¸»ã«æä¾›ã™ã‚‹ä»•çµ„ã¿ã§ã™ã€‚ FreakOut DSP ã¯æœ€é©ãªåºƒå‘ŠæŽ¢ç´¢ãƒ»å…¥æœä¾¡æ ¼èª¿æ•´ã®ãŸã‚ã€éžå¸¸ã«å¤šãã®ãƒ‡ãƒ¼ã‚¿ã‚’å‚ç…§ã—ã€æ²¢å±±ã®æ¼”ç®—å‡¦ç†ã‚’è¡Œã„ã¾ã™ã€‚åºƒå‘Šã‚’è¦‹ã¦ã„ã‚‹äººãŒéŽåŽ»ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸ Web ãƒšãƒ¼ã‚¸ã®æƒ…å ±ã‚„æ¤œç´¢ãƒ¯ãƒ¼ãƒ‰ã€ã•ã‚‰ã« åºƒå‘ŠãŒã‚¯ãƒªãƒƒã‚¯ã•ã‚Œã‚‹äºˆæ¸¬ç¢ºçŽ‡(éŽåŽ»ã®ãƒã‚°ã‹ã‚‰æ©Ÿæ¢°å¦ç¿’ã§ç®—å‡º) ãªã©ã‚’å‚ç…§ã—ã€å…¥æœä¾¡æ ¼ã‚’æ±ºå®šã™ã‚‹ã®ã§ã™ã€‚ãã®ãŸã‚ã€DSP ã§å…¥æœã‚’æ‹…å½“ã™ã‚‹ã‚µãƒ¼ãƒã¯ CPU ãŒãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã«ãªã£ã¦ãŠã‚Šã€å°æ•°ã‚‚æ•°ç™¾å°ã«åµ©ã‚“ã§ã„ã¾ã™ã€‚
kimutansk 2015/07/18
CPUãƒã‚¦ãƒ³ãƒ‰ãªãƒ¦ãƒ¼ã‚¹ã‚±ãƒ¼ã‚¹ã«ãŠã„ã¦ã¯ã‚³ãƒ³ãƒ†ã‚ã‚¹ãƒˆã‚¹ã‚¤ãƒƒãƒæŠ‘æ¢ã§ã“ã†ã¾ã§å¤‰ã‚ã‚‹ã‚‚ã®ãªã‚“ã§ã™ãã€‚ã§ã€Erlangã§ã‚‚ã“ã†ã„ã†ã“ã¨ã—ã¦ã¾ã—ãŸã‹ã€‚

Linux

kernel

performance
ãƒªãƒ³ã‚¯
cachectldã€œç„¡é§„ãªãƒšãƒ¼ã‚¸ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®å‰Šé™¤ã‚’è‡ªå‹•åŒ–ã€œ | ãƒ¡ãƒ«ã‚«ãƒªã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãƒªãƒ³ã‚°
åŽŸç¨¿ã®åŸ·ç†ãŒä¸€æ®µè½ã—ã¦å¿ƒã«ä½™è£•ãŒå‡ºã¦ããŸ@cubicdaiyaã§ã™ã€‚ ä»Šå›žã¯ã‚µãƒ¼ãƒã‚’é‹ç”¨ã—ã¦ã„ã‚‹ã¨ã‚ã‚ŠãŒã¡ãªãƒšãƒ¼ã‚¸ã‚ãƒ£ãƒƒã‚·ãƒ¥ã«é–¢ã™ã‚‹å•é¡Œã¨ãƒ¡ãƒ«ã‚«ãƒªã®ã‚¢ãƒ—ãƒãƒ¼ãƒã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚ Fluentdã«ã‚ˆã‚‹ãƒã‚°è»¢é€ è©±ã¯å¤‰ã‚ã‚Šã¾ã™ãŒã€ãƒ¡ãƒ«ã‚«ãƒªã®å„ã‚µãƒ¼ãƒä¸Šã§ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ãŒåã„ãŸãƒã‚°ãƒ‡ãƒ¼ã‚¿ã‚’Kibanaã‚„Norikraã¨ã„ã£ãŸå„ç¨®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã«è»¢é€ã™ã‚‹ãŸã‚ã«FluentdãŒç¨¼åƒã—ã¦ã„ã¾ã™ã€‚å„ãƒã‚°ãƒ‡ãƒ¼ã‚¿ã¯åŽŸå‰‡å˜ä¸€ã®ãƒ•ã‚¡ã‚¤ãƒ«ã«è¿½è¨˜ã•ã‚Œã¦Fluentdã®tailãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã«ã‚ˆã£ã¦å„æ‰€ã«è»¢é€ã•ã‚Œã¦ã„ãã¾ã™ã€‚ ãƒã‚°ãƒ‡ãƒ¼ã‚¿ã®ã‚µã‚¤ã‚ºã¯ã¾ã¡ã¾ã¡ã§ã€1æ—¥ã§æ•°GBç¨‹åº¦ã®ãƒã‚°ãƒ‡ãƒ¼ã‚¿ã‚‚ã‚ã‚Œã°æ•°åGBä»¥ä¸Šã®ãƒã‚°ãƒ‡ãƒ¼ã‚¿ã‚‚ã‚ã‚Šã¾ã™ã€‚ ãƒšãƒ¼ã‚¸ã‚ãƒ£ãƒƒã‚·ãƒ¥ã¨å·¨å¤§ãªãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ« å„ã‚µãƒ¼ãƒã«åã‹ã‚Œã‚‹ãƒã‚°ãƒ‡ãƒ¼ã‚¿ã®ã‚µã‚¤ã‚ºã¯ã‚µãƒ¼ãƒã«æè¼‰ã•ã‚Œã¦ã„ã‚‹ãƒ¡ãƒ¢ãƒªã®ã‚µã‚¤ã‚ºã¨æ¯”ã¹ã‚‹ã¨1æ—¥åˆ†ã ã‘ã§ã‚‚ã‹ãªã‚Šã®é‡ã«ãªã‚Šã¾ã™ã€‚ãã—ã¦ã€ã“ã®ã‚ˆã†ã«çµ¶ãˆãšæ›¸ãè¾¼ã¾ã‚Œã‚‹å·¨
kimutansk 2015/07/17
ãƒšãƒ¼ã‚¸ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’æ¶ˆã—ã¦æ€§èƒ½ãƒªã‚»ãƒƒãƒˆï¼†ä¸è¦ã‚ãƒ£ãƒƒã‚·ãƒ¥å‰Šé™¤ã¨ã‹ã¯ã‚„ã£ã¦ã¾ã—ãŸãŒã€é¸æŠžã—ã¦æ¶ˆã›ãŸã‚Šæœ«å°¾ã ã‘æ®‹ã›ã‚‹ã®ã¯ã„ã„ã§ã™ãã€‚

Linux

performance
ãƒªãƒ³ã‚¯
2015å¹´Webã‚µãƒ¼ãƒã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£åºè«– - ã‚†ã†ã†ããƒ–ãƒã‚°
2023å¹´03æœˆ31æ—¥è¿½è¨˜ï¼šã“ã®è¨˜äº‹ã‚’åŸºã«ã€@sadnessOjisanã•ã‚“ã‚ˆã‚Šã€ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ™ãƒ«ã«ã‚ˆã‚Šè¸ã¿è¾¼ã‚“ã ã€ã‹ã¤ã€ã‚°ãƒªãƒ¼ãƒ³ã‚¹ãƒ¬ãƒƒãƒ‰ãƒ™ãƒ¼ã‚¹ã®æ–°ã—ã„Webã‚µãƒ¼ãƒã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã‚‚å«ã‚ã¦æ•´ç†ã•ã‚ŒãŸè¨˜äº‹ Webã‚µãƒ¼ãƒãƒ¼ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£é€²åŒ–è«–2023 | blog.ojisan.io ãŒå…¬é–‹ã•ã‚Œã¾ã—ãŸã€‚ ä¸»ã«æ–°å’ã®Webã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢å‘ã‘ã«ã€å¤å…¸çš„ãªWebã‚µãƒ¼ãƒã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã‚’å¦ã¶é“ã®ã‚Šã¨ä»£è¡¨çš„ãªå®Ÿè£…ãƒ¢ãƒ‡ãƒ«ã®æ¦‚è¦ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ ã“ã®è¾ºã‚Šã®è©±é¡ŒãŒWebç•Œéšˆã§æµè¡Œã£ã¦ã„ãŸã®ã¯æ•°å¹´ä»¥ä¸Šå‰ã¨ã„ã†ã‚¤ãƒ¡ãƒ¼ã‚¸ã§ã™ãŒã€Webã‚µãƒ¼ãƒ“ã‚¹ã¯ç›¸å¤‰ã‚ã‚‰ãšWebã‚µãƒ¼ãƒã®ä¸Šã§å‹•ã„ã¦ã„ã‚‹ã®ã§ã€æµè¡Œã‚Šå»ƒã‚Šé–¢ä¿‚ãªãå¦ã¶ã¹ãå†…å®¹ã ã¨æ€ã£ã¦ã„ã¾ã™ã€‚ ã¾ãŸã€HTTP/2ãŒã„ã‚ˆã„ã‚ˆRFCåŒ–ã—ã€æ—¢ã«h2oã‚„trusterdãªã©ã®HTTP/2ã®ã‚µãƒ¼ãƒå®Ÿè£…ãŒã‚ã‚Šã€ä»Šå¾ŒWebã‚µãƒ¼ãƒã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã‚’å†è¨ªã™ã‚‹ã“ã¨ãŒå¢—ãˆã‚‹ã‚ˆã†ãªæ°—ãŒã—ã¦ã„ã¾ã™ã€‚ ã¨ã“ã‚ãŒã€We
kimutansk 2015/05/29
ã“ã®æ‰‹ã®æƒ…å ±ãŒä¸€é€šã‚Šã¾ã¨ã¾ã£ãŸæ–‡æ›¸ã£ã¦è¦‹ã‹ã‘ã¾ã›ã‚“ãã€‚è¨˜äº‹ã«ã‚‚ã‚ã‚‹ã‚µãƒ¼ãƒã‚¤ãƒ³ãƒ•ãƒ©ã‚’æ”¯ãˆã‚‹æŠ€è¡“ã¨ã€å¾Œã¯ã‚³ãƒ¼ãƒ‰ã®ä¸–ç•ŒãŒè©²å½“ã™ã‚‹ã‹ã‚‚ã€‚

Webã‚µãƒ¼ãƒ

architecture

linux
ãƒªãƒ³ã‚¯
Diagnosing latency issues
This document will help you understand what the probl em could be if you are experiencing latency probl ems with Redis. In this context latency is the maximum delay between the time a client issues a command and the time the reply to the command is received by the client. Usually Redis processing time is extremely low, in the sub microsecond range, but there are certain conditions leading to higher
kimutansk 2015/04/30
transparent_hugepageã§é…ããªã‚‹ã¨ã„ã†ã“ã¨ã¯Redisé‡Žãƒšãƒ¼ã‚¸ã«ã‚‚æ›¸ã‹ã‚Œã¦ã¾ã—ãŸã‹ã€‚

redis

latency

Linux
ãƒªãƒ³ã‚¯
1 2 3 4 5 6 7 8 9 æ¬¡ã®ãƒšãƒ¼ã‚¸