Memory Utilization on Linux

[chockalingam]

try pmem along with the command you used :

#ps -eo rss,pcpu,comm,user,pid,time,*pmem* |sort -rnk1|head -20

--lingam


On 3/29/07, Nilesh <niluforalways at yahoo.com> wrote:
>
> 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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