On Wed, Jan 25, 2012 at 2:33 AM, Ulrich Weigand Ulrich.Weigand@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