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383f2835eb
linux/arch/ia64/kernel
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Chen, Kenneth W 383f2835eb [PATCH] Prefetch kernel stacks to speed up context switch 
For architecture like ia64, the switch stack structure is fairly large
(currently 528 bytes).  For context switch intensive application, we found
that significant amount of cache misses occurs in switch_to() function.
The following patch adds a hook in the schedule() function to prefetch
switch stack structure as soon as 'next' task is determined.  This allows
maximum overlap in prefetch cache lines for that structure.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 13:57:31 -07:00
..
cpufreq [IA64] Add ACPI based P-state support 2005-08-26 15:09:24 -07:00
acpi-ext.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
acpi.c [IA64] Manual merge fix for 3 files 2005-09-08 14:27:13 -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
efi_stub.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi.c [PATCH] ia64 uncached alloc 2005-06-21 18:46:18 -07:00
entry.h [IA64] Drop spurious paren in entry.h 2005-06-20 09:34:02 -07:00
entry.S [PATCH] Prefetch kernel stacks to speed up context switch 2005-09-09 13:57:31 -07:00
fsys.S Auto merge with /home/aegl/GIT/linus 2005-06-15 14:06:48 -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 [IA64] need r29=psr *after* rsm psr.i 2005-04-27 21:22:40 -07:00
head.S [IA64] Fix build errors for !HOTPLUG case. 2005-04-22 14:46:24 -07:00
ia64_ksyms.c [IA64] __ia64_syscall() is no longer used anywhere in the kernel. Remove it. 2005-04-27 21:10:45 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iosapic.c [IA64] Manual merge fix for 3 files 2005-09-08 14:27:13 -07:00
irq_ia64.c [IA64] assign_irq_vector() should not panic 2005-07-11 10:30:07 -07:00
irq_lsapic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c [PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinity 2005-09-07 16:57:15 -07:00
ivt.S [IA64] Speed up lfetch.fault [NULL] 2005-06-28 09:28:16 -07:00
jprobes.S [PATCH] Kprobes: prevent possible race conditions ia64 changes 2005-09-07 16:58:00 -07:00
kprobes.c [PATCH] kprobes: fix bug when probed on task and isr functions 2005-09-07 16:58:01 -07:00
machvec.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] cpusets: Move the ia64 domain setup code to the generic code 2005-09-07 16:57:40 -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 [IA64] MCA recovery improvements 2005-05-03 13:47:42 -07:00
mca_drv.c [IA64] MCA recovery improvements 2005-05-03 13:47:42 -07:00
mca_drv.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca.c [ACPI] Evaluate CPEI Processor Override flag 2005-07-12 00:01:41 -04:00
minstate.h [IA64] Fix stack placement when INIT hits in kernel mode. 2005-05-06 10:16:07 -07:00
module.c [IA64] Module gp must point to valid memory 2005-06-08 11:41:31 -07:00
numa.c [IA64] fix generic/up builds 2005-07-06 18:18:10 -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] fix perfmon context load 2005-08-10 16:21:58 -07:00
process.c [IA64] fix nohalt boot option 2005-08-08 15:39:47 -07:00
ptrace.c Auto merge with /home/aegl/GIT/ia64-test 2005-06-28 08:24:49 -07:00
sal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
salinfo.c [IA64] Initialize some spinlocks 2005-08-16 15:33:26 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [ACPI] delete CONFIG_ACPI_BOOT 2005-08-24 12:08:54 -04:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
smp.c [IA64] Fix another IA64 preemption problem 2005-06-28 10:01:19 -07:00
smpboot.c [IA64] fix generic/up builds 2005-07-06 18:18:10 -07:00
sys_ia64.c [IA64] Rationalise Region Definitions 2005-08-24 15:35:41 -07:00
time.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
topology.c [ACPI] delete CONFIG_ACPI_BOOT 2005-08-24 12:08:54 -04:00
traps.c [PATCH] Kprobes: prevent possible race conditions ia64 changes 2005-09-07 16:58:00 -07:00
unaligned.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
uncached.c [IA64] uncached allocator: use generic (not sn2 specific) functions 2005-08-31 14:18:04 -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] unwind.c uses wrong unat from switch_stack 2005-07-27 14:18:08 -07:00
vmlinux.lds.S [PATCH] Kprobes: prevent possible race conditions ia64 changes 2005-09-07 16:58:00 -07:00