apache (httpd) on FC1/i386 vs FC2/x86_64: 3-8 times as much memory consumption?
Axel Thimm
Axel.Thimm at ATrpms.net
Fri Sep 3 12:54:12 UTC 2004
On Fri, Sep 03, 2004 at 12:32:42PM +0100, Joe Orton wrote:
> Actually, I don't see RSS numbers particularly different between i686
> and x86_64.
>
> For a server under ab load for a static page, I get an RSS of ~10.5Mb on
> amd64, and ~9.5Mb on i686, which seems like a reasonable difference.
> This is comparing like for like on RHEL3 U3, I don't have a Hammer box
> running FC2 to compare.
In my case this was 20MB vs 6MB.
> You are comparing active servers not idle ones, right? RSS of an idle
> server is not interesting since it may be half swapped out.
No, the numbers were from actual full workload scenarios.
It must not be a i386 vs x86_64 issue, it can also be FC1->FC2 issue
(including kernel 2.4->2.6).
--
Axel.Thimm at ATrpms.net
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