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| author |   Peter Zijlstra <peterz@infradead.org> | 2011-11-10 13:01:10 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-11-16 08:43:43 +0100 |
| commit | 4dcfe1025b513c2c1da5bf5586adb0e80148f612 (patch) | |
| tree | 1c0bf8ad4c09a3a618c471b6468873d8d8ed2117 /lib/mpi/mpiutil.c | |
| parent | sched: Set the command name of the idle tasks in SMP kernels (diff) | |
| download | wireguard-linux-4dcfe1025b513c2c1da5bf5586adb0e80148f612.tar.xz wireguard-linux-4dcfe1025b513c2c1da5bf5586adb0e80148f612.zip | |
sched: Avoid SMT siblings in select_idle_sibling() if possible
Avoid select_idle_sibling() from picking a sibling thread if there's
an idle core that shares cache.
This fixes SMT balancing in the increasingly common case where there's
a shared cache core available to balance to.
Tested-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1321350377.1421.55.camel@twins
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions