On Sep 13, 2007, at 21:47:25, Rob Hussey wrote:
On 9/13/07, Ingo Molnar <[email protected]> wrote:
are you sure this is happening with the latest iteration of the
patch too? (with the combo-3.patch?) You can pick it up from here:
http://people.redhat.com/mingo/cfs-scheduler/devel/sched-cfs-
v2.6.23-rc6-v21-combo-3.patch
I managed to work it all out (it was my fault after all), and I've now
made the changes you suggested to my .configs for 2.6.23-rc1 and
2.6.23-rc6. I've done the benchmarks all over, including tests with
the task bound to a single core. Without further ado, the numbers I
promised:
[...]
I've made graphs like last time:
http://www.healthcarelinen.com/misc/lat_ctx_benchmark.png
http://www.healthcarelinen.com/misc/hackbench_benchmark.png
http://www.healthcarelinen.com/misc/pipe-test_benchmark.png
http://www.healthcarelinen.com/misc/BOUND_lat_ctx_benchmark.png
http://www.healthcarelinen.com/misc/BOUND_hackbench_benchmark.png
http://www.healthcarelinen.com/misc/BOUND_pipe-test_benchmark.png
Well looking at these graphs (and the fixed one from your second
email), it sure looks a lot like CFS is doing at *least* as well as
the old scheduler in every single test, and doing much better in most
of them (in addition it's much more consistent between runs). This
seems to jive with all the other benchmarks and overall empirical
testing that everyone has been doing. Overall I have to say a job
well done for Ingo, Peter, Con, and all the other major contributors
to this impressive endeavor.
Cheers,
Kyle Moffett
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