-fsched-pressure options

[Michael Hope]

On Wed, Jan 25, 2012 at 2:33 AM, Ulrich Weigand
<Ulrich.Weigand at de.ibm.com> wrote:
>
> Michael, Åsa,
>
> as discussed in today's performance call, the 4.6 backport of Richard's
> sched-pressure enhancements is available here:
> https://code.launchpad.net/~rsandifo/gcc-linaro/alt-sched-pressure-4.6
>
> To activate the feature, you need to use the options:
>
>  -fsched-pressure -fsched-pressure-algorithm=model

Åsa, I think we're ready to spawn benchmark jobs through the build
farm.  I've made a front end:
 http://ex.seabright.co.nz/helpers/scheduler/spawn

to make it a little easier to use.  To spawn a benchmark run, enter a
job called benchmarks-<buildname> such as
benchmarks-gcc-linaro-4.6+bzr106857~rsandifo~alt-sched-pressure-4.6
and spawn it into the 'test' queue.  See the page for how to change
the flags and benchmarks that are run.

The results end up at:
 http://ex.seabright.co.nz/benchmarks/

which needs the password from:
 https://wiki.linaro.org/Internal/ToolChain

I've spawned Ulrich's job into the queue as a test run.  Let's see how
it goes.  If it works, you can spawn the ancestor
(benchmarks-gcc-linaro-4.6+bzr106856) and later do a diffbench on the
results.

-- Michael