Re: [RFC][PATCH 7/7] Adding general performance benchmarkingsubsystem to perf.

From: Ingo Molnar
Date: Tue Nov 03 2009 - 12:24:32 EST

* Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx> wrote:

> > There will be a handful of more details i'm sure but once there's a
> > good base we can commit it - would you / will you be interested in
> > extending it further and adding more benchmark modules as well?
> >
> > There's quite a few useful small benchmarks that people are using to
> > measure the kernel. Having a good collection of them in one place,
> > with standardized options and standardized output would be very
> > useful.
> Yes, of course! Unified benchmarking utilities will be big help for
> Linux users including me.
> e.g. I think that copybench ( will
> be good benchmark for I/O, memory and file system. I'll work on this
> after that the patch series I'll send later is merged.

copybench is listed as 'new BSD license'. Might need the pinging of its
author whether he considers it GPLv2 compatible.

> Do you know any other good candidates to include?

Frederic suggested dbench - although that's quite large as it includes a
complete trace of a benchmark run.

We might want to do similar measurements to lmbench.

One nice thing would be to have a 'system call benchmark' set - one that
measures _all_ system calls, and could thus be used to find regressions
on a 'broad' basis. Syscall usage could be gleaned from the LTP project.

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