PerfectQueueã¯ããã«ãã¼ãã§ã¯ããããããã¯Rubyã¨MySQLã§ã¸ã§ããã¥ã¼ãä½ã試ã¿ã«ã¤ãã¦
ãªãã§ç¸æã«ç¹ãããªãã®ï¼ï¼ ãµã¼ã管çãã¦ãã¦ããèµ·ããåé¡ã¯ãããªãã§ç¹ãããªãã®ï¼ï¼ãã§ããããããã§ãä»åã¯åºæ¬çãªãããã¯ã¼ã¯ããç´¹ä»ãããã¨æãã¾ããOSããã¼ã«ã®ãã¼ã¸ã§ã³ã«ããåä½ãç°ãªãã¾ãã®ã§ããããã調ã¹ã¦ã¿ã¦é ããã°ã¨æãã¾ããä»åã¯ãAmazon Linux 2015.03ãç¨ãã¦ãã¾ãã ping åºæ¬ã¯pingã§ãããICMPã®ã«ããã¨ã³ã¼è¦æ±/å¿çã®pingã使ã£ã¦æ¥ç¶ç¢ºèªãè¡ãã¾ãã $ ping yahoo.co.jp PING yahoo.co.jp (182.22.59.229) 56(84) bytes of data. 64 bytes from f1.top.vip.ssk.yahoo.co.jp (182.22.59.229): icmp_seq=1 ttl=54 time=4.84 ms 64 bytes from f1.top.vip.s
ããã«ã¡ã¯ãä»åã¯Linuxã®ã·ã¹ãã æ å ±ãå ¥æããã³ãã³ãç¹éã§ããã·ã¹ãã ã®è¨å®ããã¼ãã®æ å ±ãå ¥æããéã«å½¹ç«ã¡ãããªã³ãã³ãï¼ã¨ãããCUIæä½ï¼ãç¬æã¨åè¦ã§ããã¯ã¢ãããã¾ãããã£ã¹ããããã¼ã¸ã§ã³ã«ãã£ã¦è¨å®ãã¡ã¤ã«ãã³ãã³ãã¯å¤åãã¾ãã®ã§æ³¨æãã¦ãã ããããï¼æ¬è¨äºã¯2014å¹´10æã«å çä¿®æ£ããã¾ãããï¼ CUPã®æ å ±ãå¾ã ã¾ãæã£åãæ©ãæ å ±ãæ¬²ããæã¯ä»¥ä¸ã®ã³ãã³ããæã£ã¦ã¿ã¦ãã ããã lscpu åºåä¾ Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 48 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Vendor ID: Authenti
ä»åã¯ãè¦ããããããã¯ã¼ã¯ã¢ãã¿ãªã³ã°ãè¡ãã³ãã³ããiftopããç´¹ä»ããã 1.ã¤ã³ã¹ãã¼ã« ã¾ãã¯ã¤ã³ã¹ãã¼ã«ããã 以ä¸ã®ã³ãã³ãã§ã¤ã³ã¹ãã¼ã«ãè¡ãã sudo apt-get install iftop (Debian/Ubuntuã®å ´å) sudo yum install iftop (RHELç³»ã®å ´å) ããã§ã¤ã³ã¹ãã¼ã«ãã§ããã 2.ã³ãã³ãã®å®è¡ ããã§ã¯ãå®éã«ã³ãã³ããå®è¡ãã¦ã¿ããã iftop è¦ã¦ããããã°ãããããã«ãé常ã«ã·ã³ãã«ãã¤è¦ãããã ããã¯ãããã
Linuxã®æ¨æºã³ãã³ãã¯å¼·åãªãã®ã§ã¯ããããå®éã«äººéã使ãéã«ããããããããã¨ããã¨ååã§ã¯ãªãã ããã§ãä»åã¯Linuxã®æ¨æºã³ãã³ãããä¹ãæããäºãå¯è½ãªã³ãã³ãã©ã¤ã³ã¦ã¼ãã£ãªãã£ã¼ã調æ»ãæ´çãã¦ã¾ã¨ãã¦ã¿ããã¨ã«ããã 1.df â dfc ã¾ãã¯ããã以åã«ãã¡ãã§ãè¨è¿°ãã¦ããã dfã³ãã³ããããåãããããããã³ãã³ãã§ããã¼ã§å©ç¨çãèªèãããã¨ãåºæ¥ãã ã¤ã³ã¹ãã¼ã«ã¯ä»¥ä¸ã®ã³ãã³ãã§è¡ããã sudo apt-get install dfc (Debian or Ubuntu) 2.vmstat â dstat ããã©ã¼ãã³ã¹ã®ã¢ãã¿ãªã³ã°ã§ããç¨ããããvmstatããæ´ã«æ¡å¼µããã³ãã³ãã§ããdstatã«ããã dstatã«ã¯ãvmstatã«ã¯ãªããããã¯ã¼ã¯ã«é¢ããããã©ã¼ãã³ã¹ã追å ããã¦ãããè¦ãç®ãè¦ããããªã£ã¦ããã ã¤ã³ã¹ãã¼ã«ã¯ä»¥ä¸ã®ã³
OSã¬ãã«ã§ sys ã®CPU使ç¨çãé«ãå ´åã« perf*1 ã使ã£ã¦ãä½ã®å¦çã®å²åãé«ãã調ã¹ãæ¹æ³ã§ãã perf 㯠ç¹å®ã®ããã»ã¹ã ãã§ãªãOSå ¨ä½ã®çµ±è¨ãè¦ãã ã«ã¼ãã«ï¼sysï¼ã¨ã¦ã¼ã¶ã¼ï¼userï¼ã®ä¸¡æ¹ãè¦ãã ã¨ãããé常ã«ä¾¿å©ã ã¨æã*2ã æºå ã²ããã write ã·ã¹ãã ã³ã¼ã«ãçºè¡ãç¶ããããã°ã©ã ã使ãã $ cat write_loop.c #include <unistd.h> int main(void) { while(1) { write(1, "foo\n", 4); } } ã³ã³ãã¤ã«ãã $ gcc write_loop.c -o write_loop å®è¡æ¨©éãä»ä¸ãã $ chmod u+x write_loop æ¤è¨¼ ã²ãããwriteã·ã¹ãã ã³ã¼ã«ãçºè¡ããããã°ã©ã ãå®è¡ãã $ ./write_loop > /dev/null
ãµã¼ãã®åä½ã«ç°å¸¸ãçºçããéã«åå ãæ¢ãããã®Linuxã³ãã³ãã§ãèªåç¨ã®ã¡ã¢ã§ãã å ¨ã¦manã¨ãã°ã°ã£ããåºã¦ããã®ã§èª¬æã¯é©å½ã§ããæãã¤ãããå¾ã§è¿½è¨ãã¦ããããã§ãã 対象ã¯Debian Squeezeã«ãªãã¾ãã å ¨ã¦ããã±ã¼ã¸ã¤ã³ã¹ãã¼ã«ã§ãããã®ã§ãããã±ã¼ã¸å㯠[in packagename] ã¨ãã¦ããã¾ãã åæããã³ã¡ã³ããããã¨ããããã¾ãã è¯ãæ°ãªã³ãã³ãã¯è¿½è¨ãã¦ããã¾ãã ï¼è¿½å ããã³ãã³ãï¼ * telnet (+ã³ã¡ã³ã wget, netcat) * arp (+ã³ã¡ã³ã arpwatch) * pstree * fdisk ã³ã¡ã³ãã« gdisk * host, dig * watch * reboot
Linuxã§ããã¹ããã¼ã¿ãæ±ãã¨ãã«ãã³ãã³ãããã¤ãã§ç¹ããã ãã§ãããããªå¦çãã§ãã¦é¢ç½ãã®ã§ããã綺éºã«æ´çããã¦ããªãæ°ãããã®ã§ã¾ã¨ãã¦ã¿ã¾ããããã§ã¯ãcat, paste, join, grep, head, tail, cut, awk, sed, tr, sort, uniq, wc ãåãä¸ãã¾ãã ãã¡ã¤ã«ã縦ã«çµå ãã¡ã¤ã«ã縦ã«çµåãã¾ãã ã³ãã³ã 説æ cat file1 file2 ... file1, file2, ... ã縦ã«çµå cat file | ... ã¨ãã¦ãã¡ã¤ã«ã®ä¸èº«ããã¤ãã«æµãã®ã«ããã使ãã¾ãã ãã¡ã¤ã«ã横ã«çµå ãã¡ã¤ã«ã横ã«çµåãã¾ãããã¾ã使ããªãï¼*1 ã³ãã³ã 説æ paste file1 file2 .. file1, file2, ... ãæ¨ªã«çµå join file1 file2 file1 㨠file2
ã¹ãã¼ã éå ±ãVIP ãã®å¤ã®æ¥ãåãã¡ã¯è¼ãã¦ããã
ã©ã³ãã³ã°
ãç¥ãã
ã©ã³ãã³ã°
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}