AuxXxilium/linux_dsm_epyc7002
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7d5f9c0f10
linux_dsm_epyc7002/arch/ia64/kernel
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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
..
acpi-ext.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
acpi.c [IA64] use common pxm function 2005-05-03 13:33:18 -07:00
asm-offsets.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
brl_emu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyclone.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
domain.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi_stub.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry.S [IA64] fix typos caught by new assembler 2005-05-03 10:56:42 -07:00
fsys.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate-data.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.lds.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
head.S [IA64] Fix build errors for !HOTPLUG case. 2005-04-22 14:46:24 -07:00
ia64_ksyms.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iosapic.c [IA64] iosapic.c: typo ... s/spin_unlock_irq/spin_unlock/ 2005-04-25 13:27:48 -07:00
irq_ia64.c [IA64] vector sharing (Large I/O system support) 2005-04-25 13:26:23 -07:00
irq_lsapic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ivt.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machvec.c 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
mca_asm.S [IA64] cpu hotplug: return offlined cpus to SAL 2005-04-22 14:44:40 -07:00
mca_drv_asm.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_drv.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_drv.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
minstate.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pal.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
palinfo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
patch.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_default_smpl.c [IA64] perfmon: make pfm_sysctl a global, and other cleanup 2005-04-25 13:08:30 -07:00
perfmon_generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_itanium.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_mckinley.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon.c [IA64] perfmon: make pfm_sysctl a global, and other cleanup 2005-04-25 13:08:30 -07:00
process.c [IA64] reduce cacheline bouncing in cpu_idle_wait 2005-05-03 13:40:18 -07:00
ptrace.c [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
sal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
salinfo.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [IA64] print "siblings" before {physical,core,thread} id 2005-04-25 13:27:12 -07:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smpboot.c [IA64] multi-core/multi-thread identification 2005-04-25 13:25:06 -07:00
sys_ia64.c [PATCH] consolidate sys_shmat 2005-05-01 08:59:12 -07:00
time.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
topology.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_decoder.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_i.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind.c [IA64] Tighten up unw_unwind_to_user check 2005-04-25 11:45:26 -07:00
vmlinux.lds.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00