Hello,
I would like to know how much physical memory consumned by each runing
applications on Linux
The ps and top are showing different outputs, I could not find it out , what
ammount of actual memory consumed by each runing process on my system
The scenario is :
The physcial memory installed on Linux system is 1024MB
Top command output :
top - 02:11:57 up 18:48, 2 users, load average: 0.00, 0.00, 0.00
Tasks: 126 total, 1 running, 125 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0% us, 0.2% sy, 0.0% ni, 99.8% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 1026328k total, 810848k used, 215480k free, 47032k buffers
Swap: 2040244k total, 0k used, 2040244k free, 316708k cached
Free command output :
Free -mt
total used free shared buffers
cached
Mem: 1002 791 210 0 45
309
-/+ buffers/cache: 436 565
Swap: 1992 0 1992
Total: 2994 791 2203
The free command is showing 436MB used and 565MB is free but the Top command
is showing 810MB is used and 215MB is free
why cached is showing 309MB is it swap memory If I calculate it comes to
436+309+45=791 how cache is distributed with each application
is cache and VIRT is same
could anyone tell me how do I find out exact physical memory occupied by
each applications.
If go with ps command, is RSS is write value or Virtual Memory + RSS (
Resident set size) value
#ps -eo rss,pcpu,comm,user,pid,time |sort -rnk1|head -20
242896 0.1 java 501 5294 00:01:28
27628 0.0 spamd root 3314 00:00:01
25380 0.0 spamd root 3093 00:00:00
23624 0.0 spamd root 3315 00:00:00
22656 0.0 mysqld mysql 9573 00:00:00
22656 0.0 mysqld mysql 5415 00:00:02
22656 0.0 mysqld mysql 5340 00:00:00
22656 0.0 mysqld mysql 5336 00:00:00
22656 0.0 mysqld mysql 3322 00:00:00
22656 0.0 mysqld mysql 3321 00:00:00
22656 0.0 mysqld mysql 3320 00:00:00
22656 0.0 mysqld mysql 3319 00:00:00
22656 0.0 mysqld mysql 3311 00:00:00
22656 0.0 mysqld mysql 3310 00:00:00
22656 0.0 mysqld mysql 3309 00:00:00
22656 0.0 mysqld mysql 3308 00:00:00
22656 0.0 mysqld mysql 3307 00:00:00
22656 0.0 mysqld mysql 3233 00:00:00
22656 0.0 mysqld mysql 22854 00:00:00
22656 0.0 mysqld mysql 22853 00:00:00
Thanks
Nilesh
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