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Re: Shared memory - using ps(1)



Bill Moseley wrote:
> Top shows shared memory, but I'm not clear how to read shared memory
> with ps.  I'm curious how much total memory these Apache process are
> using -- and how much is shared between the processes.
> 
> Does RSS include memory that might be shared with other processes?
> 
> $ ps  --ppid 29903 -F
> UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
> 112      29908 29903  1 16016 46480   0 18:52 ?        00:00:04 /usr/sbin/apache2 -k start -DSSL
> 112      29909 29903  1 15908 46160   0 18:52 ?        00:00:03 /usr/sbin/apache2 -k start -DSSL
> 112      29910 29903  1 16002 46556   0 18:52 ?        00:00:04 /usr/sbin/apache2 -k start -DSSL
> 112      29911 29903  0 15528 44568   0 18:52 ?        00:00:01 /usr/sbin/apache2 -k start -DSSL
> 112      29912 29903  0 15759 45504   0 18:52 ?        00:00:01 /usr/sbin/apache2 -k start -DSSL
> 112      29918 29903  0 16007 46452   0 18:52 ?        00:00:02 /usr/sbin/apache2 -k start -DSSL
> 112      29920 29903  0 16067 46748   0 18:52 ?        00:00:02 /usr/sbin/apache2 -k start -DSSL
> 
> 
> $ ps  --ppid 29903 v
>   PID TTY      STAT   TIME  MAJFL   TRS   DRS   RSS %MEM COMMAND
> 29908 ?        S      0:04      2   364 63699 46480  5.1 /usr/sbin/apache2 -k start -DSSL
> 29909 ?        S      0:03      0   364 63267 46160  5.0 /usr/sbin/apache2 -k start -DSSL
> 29910 ?        S      0:04      0   364 63643 46556  5.1 /usr/sbin/apache2 -k start -DSSL
> 29911 ?        S      0:01      1   364 61747 44568  4.9 /usr/sbin/apache2 -k start -DSSL
> 29912 ?        S      0:01      4   364 62671 45504  5.0 /usr/sbin/apache2 -k start -DSSL
> 29918 ?        S      0:02      1   364 63663 46452  5.1 /usr/sbin/apache2 -k start -DSSL
> 29920 ?        S      0:02      4   364 63903 46748  5.1 /usr/sbin/apache2 -k start -DSSL
> 
> Also, ps is always showing the UID # instead of the name.  Shouldn't
> that come from /etc/passwd?
> 
> $ fgrep 112 /etc/passwd
> subversion:x:112:112:subversion:/var/lib/projects:/bin/sh
> 
> 
> 
> 
http://it.slashdot.org/article.pl?sid=06/02/06/120210&from=rss

-Roberto

-- 
Roberto C. Sanchez
http://familiasanchez.net/~roberto

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