Re: Apache::SizeLimit?

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Perrin Harkins wrote:
> On Wed, 2005-05-11 at 13:20 -0400, Stas Bekman wrote:
> 
>>It's not that SizeLimit and GTop no longer work, it's the recent linux 
>>kernels that have stopped maitaining certain information about shared 
>>memory. So the sharing happens, but there is no way to measure it.
> 
> 
> My impression was that our measurements of shared memory were never
> really as accurate as we thought for copy-on-write, and with the newer
> kernels they're now much worse.  I'm falling back to using just the
> process size for the moment, and hope to take total free memory on the
> machine into account at some point to figure out sharing.

When I was adding this feature to Apache::VMonitor, I did the comparison 
testing to see when things started to swap and it was giving me the 
correct numbers. But it was long time ago. Must be some early 2.4 linux 
kernel.

But as you say a process size should do the trick for those who can't rely 
on the shared memory information. I remember someone said that *BSDs 
report it correctly.

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