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linux工具类之系统性能监测
内存监测每2s以M,K,B为单位分别显示
[root@221-comecs mnt]# free -s2 -m total used free shared buffers cachedMem: 995 562 433 0 95 337-/+ buffers/cache: 129 866Swap: 1635 0 1635 total used free shared buffers cachedMem: 995 562 433 0 95 337-/+ buffers/cache: 129 866Swap: 1635 0 1635[root@221-comecs mnt]# free -s2 total used free shared buffers cachedMem: 1019820 575496 444324 0 97448 345320-/+ buffers/cache: 132728 887092Swap: 1675256 0 1675256 total used free shared buffers cachedMem: 1019820 575504 444316 0 97448 345320-/+ buffers/cache: 132736 887084Swap: 1675256 0 1675256[root@221-comecs mnt]# free -s2 -b total used free shared buffers cachedMem: 1044295680 589180928 455114752 0 99786752 353607680-/+ buffers/cache: 135786496 908509184Swap: 1715462144 0 1715462144 total used free shared buffers cachedMem: 1044295680 589189120 455106560 0 99786752 353607680-/+ buffers/cache: 135794688 908500992Swap: 1715462144 0 1715462144
[root@109-com1 asterisk]# watch -n1 -d free
Every 1.0s: free Thu Oct 9 14:53:01 2014
total used free shared buffers cached
Mem: 1019820 933400 86420 0 112452 515660
-/+ buffers/cache: 305288 714532
Swap: 1675256 456 1674800
[root@109-com1 asterisk]# watch -d vmstat
Every 2.0s: vmstat Thu Oct 9 14:58:28 2014
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 456 74072 112636 527608 0 0 0 17 21 40 0 0 99 0 0
[root@250-shiyan bin]# ps aux|head -1;ps aux|sort -rnk6|head 以RSS即第六列为准由大到小排序
linux工具类之系统性能监测
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