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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-12-17 17:59:48 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2013-12-17 17:59:48 +0100 |
| commit | 49c96d4c1806745f7ba9cceff1b6316e7bbf88c4 (patch) | |
| tree | 94e554a6b78f9abf40c081c940336097c54778ef | |
| parent | e08b7c9117c31327ba3a94a01f22c205df40c54c (diff) | |
| download | dynticks-testing-49c96d4c1806745f7ba9cceff1b6316e7bbf88c4.tar.gz | |
run: Affine writeback to cpu 0
Improve isolation by moving writeback workqueue to CPU 0.
Thanks to Kevin Hilman for the trick.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
| -rwxr-xr-x | run | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -34,6 +34,9 @@ sysctl vm.stat_interval=120 # Shutdown nmi watchdog as it uses perf events sysctl -w kernel.watchdog=0 +# Pin the writeback workqueue to CPU0 +echo 1 > /sys/bus/workqueue/devices/writeback/cpumask + DIR=/sys/kernel/debug/tracing echo > $DIR/trace echo 0 > $DIR/tracing_on |