FC4 test (x86_64) poor performance

[Vlad]

I forgot to mention -m64 flag that I also used.

On 5/29/05, Vlad <marchenko at gmail.com> wrote:
> ok, here is the complete details:
> 
> Athlon64 3000+ (it's +20Mhz overclocked on the bus, i.e. running on
> 220Mhz x 9 - roughly on par with Athlon64 3200+).
> NForce Ultra (MB: tyan k8e) with 1Gig.
> 
> php 5.0.4  + 1.3.33 statically compiled with -O3 -msse3 -m3dnow
> -march=athlon64 -mcpu=athlon64; (can't recall if I did unroll loops
> and omit frame pointer)
> 
> no extra switches or additional modules for configure.
> 
> the test.php script looked like
> 
> <?php
> phpinfo();
> phpinfo(INFO_MODULES);
> ?>
> 
> then tested with
> /usr/local/apache/bin/ab -c 50 -n 20000 http://localhost/test.php
> 
> FC4 x86_64, kernel is 2.6.11-1.1363_FC4 - the RPS is 730.
> FC3 x86_64, latests kernel - same results.
> FC3 i386, latests kernel - 570 RPS.
> FreeBSD 5.4-RELEASE (x86_64, stock kernel) - 670 RPS
> 
> same hardware in all tests, same optimization switches during compilation.
> 
> On 5/29/05, Dave Jones <davej at redhat.com> wrote:
> > On Sun, May 29, 2005 at 06:40:55PM -0400, Vlad wrote:
> >  > > > I've compiled apache+php and measured max requests per second (rps) of
> >  > > > a simple php script (output of phpinfo(); php_info(INFO_MODULES)) with
> >  > > > the apache's 'ab' application. The maximum RPS I managed for FC4 is
> >  > > > 440 while FC3 showed up to 730. Network is not the issue cause I did
> >  > > > measurement via lo0.
> >  > > >
> >  > > > It's the same server and I've ran yum update before tests in both
> >  > > > cases. Any ideas?
> >  > >
> >  > > If you are running a kernel earlier than revision 2.6.11-1.1355, it'll
> >  > > have extra debugging enabled which will impact memory allocations.
> >  >
> >  > I did the tests several days ago; following your advise I just ran yum
> >  > update and tested once again with 2.6.11-1.1363_FC4. Things are much
> >  > improved now.
> >
> > Great! However, don't tease :-)  I'm sure I'm not the only person
> > curious what RPS you now achieve :-)
> >
> >                 Dave
> >
> 
> 
> --
> 
> Vlad
> 


-- 

Vlad