Re: Strange memory usage reporting

[Jaroslav Kysela]

On Tue, 26 Aug 2003, [iso-8859-1] Mĺns Rullgĺrd wrote:

> I was a little surprised to see top tell me this:
> 
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND           
> 10642 mru       11   0 23200  81m 2740 S  0.0 37.0   0:00.07 tcvp              
> 
> It didn't make sense that RES > VIRT, so I check /proc/pid/*.  Their
> contents are below.  Am I missing something?  Note that they are not
> consistent with the 'top' line above, since they were copied at a
> different time.  The effect is easily reproducible.  It happens every
> time I run my music player with using ALSA.

I have exactly same behaviour with 2.4.21 kernel. It seems that VmRSS
grows with the mmap2 syscalls although appropriate munmap is called. I'm
investigating a possible problem with the memory accounting.

						Jaroslav

-----
Jaroslav Kysela <perex@xxxxxxx>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs

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