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On Tue, 2007-01-16 at 12:09 +0200, Constantine Shulyupin wrote:
> VIRT stands for the virtual size of a process, which is the sum of
> memory it is actually using, memory it has mapped into itself (for
> instance the video card's RAM for the X server), files on disk that
> have been mapped into it (most notably shared libraries), and memory
> shared with other processes. VIRT represents how much memory the
> program is able to access at the present moment.
I'm assuming that shared library mmaped are counted in the "shared"
section, which is neglegable - for all GNOME apps and applets, even evo
with a 1.5GB footprint is never more then 20MB. What other stuff is
mmaped ?
I don't think that disregarding the VIRT value when checking memory
consumption is wrong, as an application with a large memory footprint is
more likely to swap, swapping is expensive and if a lot of applications
(virtually any single tine little GNOME applet I'm using) are swapping,
it can easily bring down a powerful computer.
--
Oded
::..
"Clinton lied. A man might forget where he parks or where he lives, but
he never forgets oral sex, no matter how bad it is."
-- Barbara Bush (Former US First Lady)
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On Tue, 2007-01-16 at 12:09 +0200, Constantine Shulyupin wrote:
<BLOCKQUOTE TYPE=CITE>
<PRE>
<FONT COLOR="#000000">VIRT stands for the virtual size of a process, which is
the sum of</FONT>
<FONT COLOR="#000000">memory it is actually using, memory it has mapped into
itself (for</FONT>
<FONT COLOR="#000000">instance the video card's RAM for the X server), files on
disk that</FONT>
<FONT COLOR="#000000">have been mapped into it (most notably shared libraries),
and memory</FONT>
<FONT COLOR="#000000">shared with other processes. VIRT represents how much
memory the</FONT>
<FONT COLOR="#000000">program is able to access at the present moment.</FONT>
</PRE>
</BLOCKQUOTE>
<BR>
I'm assuming that shared library mmaped are counted in the "shared"
section, which is neglegable - for all GNOME apps and applets, even evo with a
1.5GB footprint is never more then 20MB. What other stuff is mmaped ?<BR>
<BR>
I don't think that disregarding the VIRT value when checking memory consumption
is wrong, as an application with a large memory footprint is more likely to
swap, swapping is expensive and if a lot of applications (virtually any single
tine little GNOME applet I'm using) are swapping, it can easily bring down a
powerful computer.<BR>
<BR>
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--<BR>
Oded<BR>
::..<BR>
"Clinton lied. A man might forget where he parks or where he lives, but he
never forgets oral sex, no matter how bad it is."<BR>
-- Barbara Bush (Former US First Lady)<BR>
<BR>
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