diff options
author | Zwane Mwaikambo <zwane@arm.linux.org.uk> | 2005-03-30 21:40:00 -0700 |
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committer | Tony Luck <tony.luck@intel.com> | 2005-05-03 13:40:18 -0700 |
commit | 7d5f9c0f10255000ca007fb03773c6b825c2b9ce (patch) | |
tree | 5f53e41ef4cbe5ced2c5884ee5dde8df1fcaa509 /kernel/uid16.c | |
parent | de7548d0e202263bb6bfd7574a7889e85a691937 (diff) |
[IA64] reduce cacheline bouncing in cpu_idle_wait
Andi noted that during normal runtime cpu_idle_map is bounced around a lot,
and occassionally at a higher frequency than the timer interrupt wakeup
which we normally exit pm_idle from. So switch to a percpu variable.
I didn't move things to the slow path because it would involve adding
scheduler code to wakeup the idle thread on the cpus we're waiting for.
Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'kernel/uid16.c')
0 files changed, 0 insertions, 0 deletions