On Fri, Mar 23, 2001 at 10:05:10AM -0800, Wim Kerkhoff wrote:
> How much though? On the many various Linux systems I have had access to,
> I haven't seen a situation where there is 100mb of free memory, but 50mb
> sitting in swap. Perhaps a couple of megs, but nothing of consequence.
I think the
>
> [root@server /root]# free
>total used free shared buffers cached
> Mem: 516952 503816 13136 59912 87784 335176
> -/+ buffers/cache:80856 436096
> Swap:10281206801027440
>
This means that you actual only use 503816
> Your system does seem to be ok to me though.
Thanks to you and the others who replied. It's good to understand how
the memory useage works.
I have since seen the "used" number drop to about half its previous
value, so I guess Linux occasionally does housecleaning...
Thanks again.
-Neil
Andre Landwehr wrote:
>
> On Thu, Mar 22, 2001 at 03:19:51PM -0500, Neil Gunton wrote:
> > And moreover, I could see it starting to use swap space, which
> > simply should not happen with the kind of minimal load the machine is
> > under.
>
> It's quite common (at least in Linux, don't know abou
Neil Gunton wrote:
>
> Sorry to bother you again, but I want to make sure that I am reading
> this right. This is the output from the 'free' command:
>
> [root@server /root]# free
>total used free shared buffers cached
> Mem: 516952 503816 13136
Neil Gunton wrote:
> Sorry to bother you again, but I want to make sure that I am reading
> this right. This is the output from the 'free' command:
>
> [root@server /root]# free
>total used free shared buffers cached
> Mem: 516952 503816 13136 599
Sorry to bother you again, but I want to make sure that I am reading
this right. This is the output from the 'free' command:
[root@server /root]# free
total used free shared buffers cached
Mem: 516952 503816 13136 59912 87784 335176
-/+ buffer
Andre, thanks for the reply. I am noticing, using the 'top' utility,
that the "memory used" number is way up there this morning, around
469576K. The total mem is 512Mb, so obviously something is taking up a
lot of memory. I tried shutting down all the main processes that might
use a lot of memory
On Thu, Mar 22, 2001 at 03:19:51PM -0500, Neil Gunton wrote:
> And moreover, I could see it starting to use swap space, which
> simply should not happen with the kind of minimal load the machine is
> under.
It's quite common (at least in Linux, don't know about other
unices) to use swap space eve
>
> Gerald, if this is Perl not releasing resources on recompile, then that
> is something I can handle.
Most of the resources are released. Only a few remain.
> I just have to be careful to restart apache
> when updating sources.
Normaly, it should be enoungh to limit the number of request per
r
> > > tracking down the leaks?
> > >
> > > Also, "top" works well for monitoring the memory. "M" after it loads sorts
> > > by memory, and you can see the status of main and virtual memory. We saw the
> > > slowdown once main memory
ain and virtual memory. We saw the
> slowdown once main memory was filled.
>
> -Original Message-
> From: G.Richter [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, March 22, 2001 8:14 AM
> To: Neil Gunton
> Cc: [EMAIL PROTECTED]
> Subject:Re: Cachi
y. We saw the
> > slowdown once main memory was filled.
> >
> > -Original Message-
> > From: G.Richter [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, March 22, 2001 8:14 AM
> > To: Neil Gunton
> > Cc: [EMAIL PROTECTED]
> > Subject:
see the status of main and virtual memory. We saw the
> slowdown once main memory was filled.
>
> -Original Message-
> From: G.Richter [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, March 22, 2001 8:14 AM
> To: Neil Gunton
> Cc: [EMAIL PROTECTED]
> Su
unton
Cc: [EMAIL PROTECTED]
Subject:Re: Caching question
> Is it possible that there was some kind
> of memory leak or other kind of buildup over time, as a result of the
> rapidly changing html sources?
Perl will not totaly release all resources when you recompile a script. So
> Is it possible that there was some kind
> of memory leak or other kind of buildup over time, as a result of the
> rapidly changing html sources?
Perl will not totaly release all resources when you recompile a script. So
there is a very small memory leak, that occurs when a script is
recompiled.
I noticed that when I restarted apache, the problem was greatly reduced,
if not altogether absent. All page loads were very fast. When apache
restarts, there are initially only a couple of httpd processes. The
delays seemed to be occurring with apache processes which had been up
for a good while (
> How long should apache (and Embperl) be caching pages?
>
forever, as long as the source didn't change. There is no clean way to
remove already compiled Perl code from memory
> When does Embperl decide to recompile (apart from when a page source
> changes)?
>
Only when a page changes.
The s
How long should apache (and Embperl) be caching pages?
When does Embperl decide to recompile (apart from when a page source
changes)?
I ask because I have been watching my server, and notice that at various
(random) times, some pages take longer to load than normal, on the order
of a few seconds
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