I run Apache 2/PHP/SVN on WinXP (AMD 1600/1GB). Apache launches 2
processes when it starts up. One usually uses about 7.8MB of RAM and the
other varies. Right now it's idling at about 21MB. If I run a hard working
PHP script, it can spiral to hundreds of megs of RAM. For most SVN
activity, I don't really see much of a spike at all.
John Peacock said:
> Ben Collins-Sussman wrote:
>
>> When I fire up my httpd on Linux, I get about 8 mpm-prefork children,
>> each about 3 megs in size. After even the most gigantic svn
>> operations, the largest child never grows bigger than 10 megs.
>
> But he's running Apache under Windows, which is a very different beast
> from
> Linux. I don't run Apache under Windows, so perhaps someone who does
> could see
> how much memory the child processes typically use.
>
> And I am also pointing out that Windows doesn't behave well under low
> memory
> conditions (and I would consider 128MB to be very low memory for a Windows
> server). If he is running a browser and editor, etc. on the machine, he
> could
> quickly exhaust physical RAM. For example, just this moment, Mozilla 1.4
> is
> consuming ~60MB and a Macromedia flash player app is taking 16MB on top of
> that.
>
>>
>> How could this be a problem with swap? He's saying that child httpd
>> processes are growing up to 80 megs and beyond. Are you suggesting
>> that if his machine had a gig of RAM, that his httpd processes
>> *wouldn't* grow to 80 megs and beyond?
>
> No, he didn't say that:
>
>> memory consumption was low: RAM usage did not go above
>> 80MB, pagefile not above 220 MB.
>>
>
> That't not the individual child processes, that is total RAM consumption
> by
> _all_ processes. He also didn't identify what other processes were
> running the
> day before he had his problems. I am also concerned that he is using
> hibernation with resident server processes.
>
> I don't know for sure, but I think it would be best to add RAM as a first
> pass.
> If and until someone else can replicate this, his specific environment is
> a more
> important clue that the software he is running, IMNSHO.
>
> John
>
> --
> John Peacock
> Director of Information Research and Technology
> Rowman & Littlefield Publishing Group
> 4501 Forbes Boulevard
> Suite H
> Lanham, MD 20706
> 301-459-3366 x.5010
> fax 301-429-5748
>
>
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--
J Wynia
Pragmapool, Inc.
www.pragmapool.com
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Received on Thu Oct 23 17:50:29 2003