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
..
irq
[PATCH] CHECK_IRQ_PER_CPU() to avoid dead code in __do_IRQ()
2005-09-07 16:57:29 -07:00
power
Merge linux-2.6 with linux-acpi-2.6
2005-09-08 01:45:47 -04:00
acct.c
[PATCH] largefile support for accounting
2005-09-07 16:57:31 -07:00
audit.c
[NETLINK]: Add "groups" argument to netlink_kernel_create
2005-08-29 16:01:11 -07:00
auditsc.c
AUDIT: Record working directory when syscall arguments are pathnames
2005-05-27 12:17:28 +01:00
capability.c
[PATCH] kernel/capability.c: add kerneldoc
2005-07-27 16:26:06 -07:00
compat.c
[PATCH] Fix get_compat_sigevent()
2005-04-16 15:24:01 -07:00
configs.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cpu.c
[PATCH] i386 CPU hotplug
2005-06-25 16:24:29 -07:00
cpuset.c
[PATCH] cpusets: re-enable "dynamic sched domains"
2005-09-07 16:57:41 -07:00
crash_dump.c
[PATCH] kernel/crash_dump.c: add kerneldoc
2005-07-27 16:26:06 -07:00
dma.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
exec_domain.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
exit.c
[PATCH] revert "timer exit cleanup"
2005-08-04 16:57:49 -07:00
extable.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
fork.c
[PATCH] fix disassociate_ctty vs. fork race
2005-09-09 13:57:31 -07:00
futex.c
[PATCH] futex: remove duplicate code
2005-09-07 16:57:33 -07:00
intermodule.c
[PATCH] introduce and use kzalloc
2005-09-07 16:57:45 -07:00
itimer.c
[PATCH] itimer fixes
2005-07-27 16:25:51 -07:00
kallsyms.c
[PATCH] ppc32: platform-specific functions missing from kallsyms.
2005-05-05 16:36:31 -07:00
Kconfig.hz
[PATCH] i386: Selectable Frequency of the Timer Interrupt
2005-06-23 09:45:10 -07:00
Kconfig.preempt
[PATCH] sched: voluntary kernel preemption
2005-06-25 16:24:45 -07:00
kexec.c
[PATCH] kexec: fix sparse warnings
2005-06-28 14:53:40 -07:00
kfifo.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
kmod.c
[PATCH] Keys: Pass session keyring to call_usermodehelper()
2005-06-24 00:05:18 -07:00
kprobes.c
[PATCH] kprobes: fix bug when probed on task and isr functions
2005-09-07 16:58:01 -07:00
ksysfs.c
[PATCH] Kdump: Export crash notes section address through sysfs
2005-06-25 16:24:51 -07:00
kthread.c
[PATCH] use smp_mb/wmb/rmb where possible
2005-05-01 08:58:47 -07:00
Makefile
[PATCH] detect soft lockups
2005-09-07 16:57:17 -07:00
module.c
[PATCH] flush icache early when loading module
2005-09-07 16:57:26 -07:00
panic.c
[PATCH] Call emergency_reboot from panic
2005-07-26 14:35:43 -07:00
params.c
[PATCH] introduce and use kzalloc
2005-09-07 16:57:45 -07:00
pid.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
posix-cpu-timers.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
posix-timers.c
[PATCH] fix send_sigqueue() vs thread exit race
2005-09-07 16:57:33 -07:00
printk.c
[PATCH] Provide better printk() support for SMP machines
2005-09-07 16:57:18 -07:00
profile.c
[PATCH] mostly_read data section
2005-07-07 18:23:46 -07:00
ptrace.c
[PATCH] remove duplicated code from proc and ptrace
2005-09-07 16:57:43 -07:00
rcupdate.c
[PATCH] Deprecate synchronize_kernel, GPL replacement
2005-05-01 08:59:04 -07:00
resource.c
[PATCH] introduce and use kzalloc
2005-09-07 16:57:45 -07:00
sched.c
[PATCH] Prefetch kernel stacks to speed up context switch
2005-09-09 13:57:31 -07:00
seccomp.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
signal.c
[PATCH] fix send_sigqueue() vs thread exit race
2005-09-07 16:57:33 -07:00
softirq.c
[PATCH] revert bogus softirq changes
2005-07-30 10:49:59 -07:00
softlockup.c
[PATCH] detect soft lockups
2005-09-07 16:57:17 -07:00
spinlock.c
[PATCH] spin_unlock_bh() and preempt_check_resched()
2005-05-21 10:46:48 -07:00
stop_machine.c
[PATCH] smp_processor_id() cleanup
2005-06-21 18:46:13 -07:00
sys.c
[PATCH] remove a redundant variable in sys_prctl()
2005-09-07 16:57:32 -07:00
sys_ni.c
[PATCH] remove sys_set_zone_reclaim()
2005-08-01 10:03:56 -07:00
sysctl.c
[NET]: Fix sparse warnings
2005-08-29 16:01:32 -07:00
time.c
[PATCH] clean up inline static vs static inline
2005-07-27 16:26:20 -07:00
timer.c
[PATCH] optimize writer path in time_interpolator_get_counter()
2005-09-07 16:57:24 -07:00
uid16.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
user.c
[PATCH] inotify
2005-07-12 20:38:38 -07:00
wait.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
workqueue.c
[PATCH] introduce and use kzalloc
2005-09-07 16:57:45 -07:00