python performance on Solaris

[James Matthews]

I use python in almost the same environment. I use it on Joyent and on the
Rackspace cloud. Joyent is faster for a few reasons (cpu bursting and faster
disks) but these aren't real benchmarks until they are on the same machines.


James

On Wed, Oct 14, 2009 at 9:59 AM, Jorgen Grahn
<grahn+nntp at snipabacken.se<grahn%2Bnntp at snipabacken.se>
> wrote:

> On Wed, 2009-10-14, Antoine Pitrou wrote:
> > inaf <cem.ezberci <at> gmail.com> writes:
> >>
> >> Good point. I failed to compare the CPU power on these machines.. 32
> >> bit linux box I have is 2666 Mhz vs the Solaris zone is 1415 Mhz.. I
> >> guess that explains :) Thank you for the tip..
> >
> > You have to compare not only CPU frequencies but the CPU models.
>
> Yes, at least that.  Megahertz figures have been useless for decades,
> except in advertising.
>
> > Recently Sun has been selling CPUs optimized for multi-threading (e.g.
> the
> > "UltraSPARC T2" or Niagara CPUs) which have, by design, very poor
> > single-threaded performance. If your Solaris zone uses such a CPU then a
> 6-8x
> > difference in single-threaded performance compared to a modern Intel
> > or AMD CPU
> > is totally expected.
>
> (Had to Google it. A "Solaris Zone" is apparently some kind of
> virtualization thing, with low CPU overhead.)
>
> s/multi-threading/multi-programming/ I suppose. I certainly hope you
> can still get performance while running many separate true processes in
> parallel.
>
> /Jorgen
>
> --
>  // Jorgen Grahn <grahn@  Oo  o.   .  .
> \X/     snipabacken.se>   O  o   .
> --
> http://mail.python.org/mailman/listinfo/python-list
>



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