kernel_optimize_test/arch/ia64
Zwane Mwaikambo 7d5f9c0f10 [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>
2005-05-03 13:40:18 -07:00
..
configs [IA64-SGI] Bus driver for the CX port of SGI's TIO chip. 2005-04-25 13:09:41 -07:00
dig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hp [IA64] use common pxm function 2005-05-03 13:33:18 -07:00
ia32 [IA64] ia32_signal.c: erroneous use of memset/memcpy 2005-04-22 13:06:47 -07:00
kernel [IA64] reduce cacheline bouncing in cpu_idle_wait 2005-05-03 13:40:18 -07:00
lib [IA64] use fc.i for fluch_icache_range() 2005-05-03 11:27:33 -07:00
mm [IA64] Need to handle lfetch in "no_context" case. 2005-04-25 13:22:44 -07:00
oprofile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scripts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sn [IA64-SGI] Altix only: Fix for sn_dma_flush 2005-05-03 13:36:09 -07:00
defconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [IA64-SGI] SGI Altix cross partition functionality (2nd 2005-05-03 12:16:52 -07:00
Kconfig.debug Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.lds Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00