LinuxÖ®uptime¡¢topÃüÁî
ÔÚLinuxϵͳÖУ¬uptime¡¢topµÈÃüÁîÅжÏÒ»¸öϵͳµÄ¸ºÔØ¡£load average·Ö±ð¼Ç¼ÁË1¡¢5¡¢15·ÖÖÓµÄϵͳƽ¾ù¸ºÔØ¡£
load average ¶Ô performance µÄÓ°Ïì?
1. Èç¹ûload average/CPUÊýÁ¿ < 3, performance is good
2. Èç¹ûload average/CPUÊýÁ¿ > 5, performance is very bad
Ïà¹ØÎĵµ£º
Ê×ÏÈҪ˵Ã÷µÄÊÇÔÚLinuxϵͳÖУ¬¿ÉÖ´ÐÐÎļþûÓÐͳһµÄºó׺£¬ÏµÍ³´ÓÎļþµÄÊôÐÔÀ´Çø·Ö¿ÉÖ´ÐÐÎļþºÍ²»¿ÉÖ´ÐÐÎļþ¡£¶øgccÔòͨ¹ýºó׺À´Çø±ðÊäÈëÎļþµÄÀà±ð£¬ÏÂÃæÎÒÃÇÀ´½éÉÜgccËù×ñѵIJ¿·ÖÔ¼¶¨¹æÔò¡£Ò»°ã
.cΪºó׺µÄÎļþ£¬CÓïÑÔÔ´´úÂëÎļþ£»
.aΪºó׺µÄÎļþ£¬ÊÇÓÉÄ¿±êÎļþ¹¹³ÉµÄµµ°¸¿âÎļþ£»
.C£¬.cc»ò.cxxΪºó׺µÄÎļþ£¬ÊÇC ......
# uname -a # ²é¿´ÄÚºË/²Ù×÷ϵͳ/CPUÐÅÏ¢
# head -n 1 /etc/issue # ²é¿´²Ù×÷ϵͳ°æ±¾
# cat /proc/cpuinfo # ²é¿´CPUÐÅÏ¢
# hostname # ²é¿´¼ÆËã»úÃû
# lspci -tv # ÁгöËùÓÐPCIÉ豸
# lsusb -tv # ÁгöËùÓÐUSBÉ豸
# lsmod # Áгö¼ÓÔصÄÄÚºËÄ£¿é
# env # ²é¿´»·¾³±äÁ¿ ×ÊÔ´
# free -m # ²é¿´ÄÚ´æʹÓÃÁ¿ºÍ½»»»Ç ......
ΪÁË·½Ã棬ÎÒдÁ˸ö½Å±¾×Ô¶¯sshµÇ¼Զ¶Ë»úÆ÷£¬ÈçÏ£¬Õâ¸ö½Å±¾ÐèÒª°²×°expect°ü
================================
#!/usr/bin/expect
set timeout 30
spawn ssh -l root 192.168.1.117
expect "password:"
send "nopasswd\r"
interact
================================
set timeout 30
ÉèÖÃ ......
Linuxϳ£ÓÃѹËõ¸ñʽµÄѹËõÓë½âѹ·½·¨
---------------------------------------------
.tar
´ò°ü£ºtar cvf *.tar *.*(ÔÎļþ»òĿ¼)
½â°ü£ºtar xvf *.tar
---------------------------------------------
.gz
½âѹ1£ºgunzip *.gz
½âѹ2£ºgzip -d *.gz
ѹËõ£ºgzip *.*(ÔÎļþ»òĿ¼)
--------------------------- ......