Ravikiran G Thirumalai e729aa16b1 Pad irq_desc to internode cacheline size ... We noticed a drop in n/w performance due to the irq_desc being cacheline aligned rather than internode aligned. We see 50% of expected performance when two e1000 nics local to two different nodes have consecutive irq descriptors allocated, due to false sharing. Note that this patch does away with cacheline padding for the UP case, as it does not seem useful for UP configurations. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-05-08 11:15:09 -07:00
..
irq	Pad irq_desc to internode cacheline size	2007-05-08 11:15:09 -07:00
power	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
time	Fix race between cat /proc/*/wchan and rmmod et al	2007-05-08 11:15:08 -07:00
.gitignore
acct.c
audit.c	[NETLINK]: Switch cb_lock spinlock to mutex and allow to override it	2007-04-25 22:29:03 -07:00
audit.h
auditfilter.c
auditsc.c	[PATCH] fix deadlock in audit_log_task_context()	2007-03-14 15:27:48 -07:00
capability.c
compat.c
configs.c
cpu.c	[PATCH] Fix microcode-related suspend problem	2007-04-02 10:06:09 -07:00
cpuset.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
delayacct.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
die_notifier.c	move die notifier handling to common code	2007-05-08 11:15:04 -07:00
dma.c
exec_domain.c
exit.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
extable.c
fork.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
futex_compat.c
futex.c	futex: restartable futex_wait	2007-05-08 11:15:03 -07:00
hrtimer.c	[NET]: Fix networking compilation errors	2007-04-27 15:31:24 -07:00
itimer.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
kallsyms.c	Fix race between cat /proc/slab_allocators and rmmod	2007-05-08 11:15:08 -07:00
Kconfig.hz
Kconfig.preempt
kexec.c	kdump/kexec: calculate note size at compile time	2007-05-08 11:15:07 -07:00
kfifo.c
kmod.c	Fix kevent's childs priority greediness	2007-05-08 11:15:07 -07:00
kprobes.c	Simplify kallsyms_lookup()	2007-05-08 11:15:08 -07:00
ksysfs.c	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
kthread.c
latency.c
lockdep_internals.h
lockdep_proc.c
lockdep.c	Simplify kallsyms_lookup()	2007-05-08 11:15:08 -07:00
Makefile	move die notifier handling to common code	2007-05-08 11:15:04 -07:00
module.c	Fix race between cat /proc/slab_allocators and rmmod	2007-05-08 11:15:08 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
nsproxy.c	Merge sys_clone()/sys_unshare() nsproxy and namespace handling	2007-05-08 11:15:00 -07:00
panic.c
params.c	kernel/params.c: fix lying comment for param_array()	2007-05-08 11:15:08 -07:00
pid.c	Merge sys_clone()/sys_unshare() nsproxy and namespace handling	2007-05-08 11:15:00 -07:00
posix-cpu-timers.c
posix-timers.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
printk.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
profile.c
ptrace.c
rcupdate.c
rcutorture.c	rcutorture: Mark rcu_torture_init as __init	2007-05-08 11:15:00 -07:00
relay.c
resource.c	libata/IDE: remove combined mode quirk	2007-04-28 14:15:59 -04:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c	Lockdep treats down_write_trylock like regular down_write	2007-05-08 11:15:09 -07:00
sched.c	add touch_all_softlockup_watchdogs()	2007-05-08 11:15:06 -07:00
seccomp.c
signal.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
softirq.c
softlockup.c	add touch_all_softlockup_watchdogs()	2007-05-08 11:15:06 -07:00
spinlock.c
srcu.c
stacktrace.c
stop_machine.c	Use stop_machine_run in the Intel RNG driver	2007-05-08 11:15:00 -07:00
sys_ni.c
sys.c	remove software_suspend()	2007-05-07 12:12:59 -07:00
sysctl.c	proc: maps protection	2007-05-08 11:15:02 -07:00
taskstats.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
time.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
timer.c	Move timekeeping code to timekeeping.c	2007-05-08 11:15:06 -07:00
tsacct.c
uid16.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
user.c
utsname_sysctl.c
utsname.c	Merge sys_clone()/sys_unshare() nsproxy and namespace handling	2007-05-08 11:15:00 -07:00
wait.c
workqueue.c