Question

Determining process memory usage

Asked by: zebada

What's the best way to determine how much real and virtual memory a process has:

1. shared with other processes. i.e. shared libraries/shared executable text.
2. allocated for private usage.

I need the information to determine system memory sizing. I have an executable which is a run time virtual machine (similar in concept to a jvm). It will be executed concurrently by hundreds of users. The size of the executable on disk is about 900Kb.

size gives:
   text    data     bss     dec     hex filename
 332202   34084  183620  549906   86412 /home/pb/bin/vm

ps -vax gives:
  PID TTY      STAT   TIME  MAJFL   TRS   DRS  RSS %MEM COMMAND
31708 pts/0    S      0:00    837   324  7963 3832  1.5 vm prog1

How should that information be interpreted to help me figure out the memory requirements of a machine for, say, 500 users.

Thanks
Paul

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Asked On
2002-01-23 at 12:58:52ID20258690
Tags

memory

,

usage

,

process

Topics

Unix Operating Systems

,

HP-UX Unix

Participating Experts
3
Points
100
Comments
6

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Answers

 

Expert Comment

by: newmangPosted on 2002-01-23 at 15:24:45ID: 6752314

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Expert Comment

by: zebadaPosted on 2002-01-23 at 16:55:49ID: 6752450

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Expert Comment

by: newmangPosted on 2002-01-23 at 18:38:31ID: 6752587

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Accepted Solution

by: chris_calabresePosted on 2002-01-24 at 07:05:43ID: 6753764

Rank: Wizard

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Expert Comment

by: haegerPosted on 2002-01-26 at 14:12:46ID: 6758407

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Expert Comment

by: newmangPosted on 2002-01-26 at 14:51:39ID: 6758455

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