System performance monitoring of Linux tool classes

memory monitoring is displayed per 2s in m,k,b units
[[Email protected]221-comecs mnt]# Free-S2-m Total used Freeshared buffers Cachedmem:995        562        433          0          the        337-/+ Buffers/cache:129        866Swap:1635          0       1635Total used Freeshared buffers Cachedmem:995        562        433          0          the        337-/+ Buffers/cache:129        866Swap:1635          0       1635[[Email protected]221-comecs mnt]# Free-S2 Total Used Freeshared buffers Cachedmem:1019820     575496     444324          0      97448     345320-/+ Buffers/cache:132728     887092Swap:1675256          0    1675256Total used Freeshared buffers Cachedmem:1019820     575504     444316          0      97448     345320-/+ Buffers/cache:132736     887084Swap:1675256          0    1675256[[Email protected]221-comecs mnt]# Free-S2-b Total Used Freeshared buffers Cachedmem:1044295680  589180928  455114752          0   99786752  353607680-/+ Buffers/cache:135786496  908509184Swap:1715462144          0 1715462144Total used Freeshared buffers Cachedmem:1044295680  589189120  455106560          0   99786752  353607680-/+ Buffers/cache:135794688  908500992Swap:1715462144          0 1715462144

[Email protected] 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
[Email protected] 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

[[Email protected] bin]# PS aux|head-1;ps aux|sort-rnk6|head to RSS as sixth column quasi from big to small sort

System performance monitoring of Linux tool classes