[Israel.pm] memory usage
oron at actcom.co.il
Tue Sep 5 11:35:50 PDT 2006
On Tuesday, 5 בSeptember 2006 16:33, Eitan Schuler wrote:
> correct. this is for linux - for Solaris check out the ps synax.
1. Modern versions of Linux ps support both the BSD flags (e.g: aux)
and the SysV flags (e.g: -ef) that are used in Solaris,
HP-UX, Irix,... and all other "Posix.1" Unices.
2. Since some flags letters overlap with different meaning
(e.g: '-f' vs. 'f') Linux ps differentiate through the following
In the original BSD ps the '-' character before the flag letters
was optional (just like in tar). Therefore, if the ps get flags
without a leading '-' it interpret them according to BSD semantics.
Otherwise, it parse them as SysV flags.
[in Linux ps man page, you'll see there is another way to dictate this
separation through the environment...]
Remark: some people still use 'ps -aux' (note the '-') which is
deprecated. Instead use either 'ps aux' or 'ps -ef'
3. As Guy indicated you want the VSZ field, but I'm not sure
which SysV *standard* flag give this field [of course the
Linux version have a nice '-o pid,vsz,cmd' which makes this
easy, but we are looking for a standard way...] You'll
have to browse through Solaris man page for that.
> On 9/5/06, Gabor Szabo <szabgab at gmail.com> wrote:
> > On 9/5/06, Eitan Schuler <eitan.schuler at gmail.com> wrote:
> > > quick and dirty:
> > > print STDERR `ps -auxw | fgrep <your program name> | fgrep -v fgrep `;
> > > you can add an awk to this. look at the RSS column if increases.
4. It's a bit funny to see on a perl mailing list people using
external tools that are equivalent to perl built-ins.
Let's make it quicker and dirtier.
perl -e 'print STDERR grep($_ =~ "konsole" && $_ !~ "grep", qx|ps aux|)'
Oron Peled Voice/Fax: +972-4-8228492
oron at actcom.co.il http://www.actcom.co.il/~oron
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