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Date: Wed, 08 Aug 2001 11:18:23 +0530
From: Milind <dmilind@india.hp.com>
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Subject: Re: FW: [ma-linux] Info about top command required
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Hi mark ,

Thanks for the info.

But the question really is , whether SIZE corrosponds to

  real memory( real text + real data + real stack)
                              OR
  virtual  memory(virtual text + virtual data + virtual stack)
                              OR
   both????

Thanks
Milind


> -----Original Message-----
> From: mark@winksmith.com [mailto:mark@winksmith.com]
> Sent: Tuesday, August 07, 2001 6:13 PM
> To: Ananth P
> Cc: TUXMA (E-mail)
> Subject: Re: [ma-linux] Info about top command required
>
> On Tue, Aug 07, 2001 at 12:55:28PM +0530, Ananth P wrote:
> >  I wanted to know how the 'SIZE' field in the output of 'top' command is
> > calculated in linux.
>
> well, if i remember correctly the size field in ps results in process
> size in clicks.  one click is 4096 bytes.  it's pretty good for relative
> measurement (e.g. this one is 50 clicks, the other one is 5000 clicks).
>
> let's see about 'top'.  reading man page
>
>         SIZE    The size of the task's code plus data plus stack
>                 space, in kilobytes, is shown here.
>
> so, it sounds like kb.  in addition, you might find these fields helpful
> too (from the man page).
>
>         TSIZE   The code size of the task. This gives strange
>                 values for kernel processes  and is broken
>                 for ELF processes.
>
>         DSIZE   Data + Stack size. This is broken for ELF
>                 processes.
>
> --
> Mark Smith
> mark@winksmith.com