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ec65993443
linux/arch/x86/kernel/cpu
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Mel Gorman ec65993443 mm, x86: Account for TLB flushes only when debugging 
Bisection between 3.11 and 3.12 fingered commit 9824cf97 ("mm:
vmstats: tlb flush counters") to cause overhead problems.

The counters are undeniably useful but how often do we really
need to debug TLB flush related issues?  It does not justify
taking the penalty everywhere so make it a debugging option.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Davidlohr Bueso <davidlohr@hp.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-XzxjntugxuwpxXhcrxqqh53b@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-01-25 09:10:41 +01:00
..
mcheck ACPI, APEI, CPER: Add UEFI 2.4 support for memory error 2013-10-23 10:10:20 -07:00
mtrr mm, x86: Account for TLB flushes only when debugging 2014-01-25 09:10:41 +01:00
.gitignore
amd.c x86, cpu, amd: Add workaround for family 16h, erratum 793 2014-01-14 16:39:07 -08:00
bugs_64.c
bugs.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
centaur.c x86/cpu: Track legacy CPU model data only on 32-bit kernels 2013-10-26 13:34:39 +02:00
common.c Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-12 10:46:43 +09:00
cpu.h x86/cpu: Track legacy CPU model data only on 32-bit kernels 2013-10-26 13:34:39 +02:00
cyrix.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
hypervisor.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00
intel_cacheinfo.c treewide: Fix common typo in "identify" 2013-10-14 15:31:06 +02:00
intel.c x86 idle: Repair large-server 50-watt idle-power regression 2013-12-19 11:47:39 -08:00
Makefile perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
match.c x86: Fix typo in MODULE_DEVICE_TABLE example: s/x86_cpu/x86cpu/ 2012-04-16 14:20:19 +02:00
mkcapflags.sh mkcapflags.pl: convert to mkcapflags.sh 2013-04-29 15:54:27 -07:00
mshyperv.c x86, hyperv: Move a variable to avoid an unused variable warning 2013-11-06 10:02:05 -08:00
perf_event_amd_ibs.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
perf_event_amd_iommu.c perf/x86/amd: Do not print an error when the device is not present 2013-07-05 08:27:15 +02:00
perf_event_amd_iommu.h perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_uncore.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
perf_event_amd.c perf: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node() 2013-09-02 08:42:49 +02:00
perf_event_intel_ds.c perf: Fix arch_perf_out_copy_user default 2013-11-06 12:34:25 +01:00
perf_event_intel_lbr.c perf: Fix arch_perf_out_copy_user default 2013-11-06 12:34:25 +01:00
perf_event_intel_uncore.c perf/x86/intel: Add Ivy Bridge-EP uncore IRP box support 2013-11-06 12:34:31 +01:00
perf_event_intel_uncore.h perf/x86/intel/uncore: Enable EV_SEL_EXT bit for PCU 2013-08-16 17:55:50 +02:00
perf_event_intel.c perf/x86: Suppress duplicated abort LBR records 2013-10-04 10:06:16 +02:00
perf_event_knc.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event_p4.c perf/x86/intel/P4: Robistify P4 PMU types 2013-04-26 09:31:41 +02:00
perf_event_p6.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event.c perf: Fix arch_perf_out_copy_user default 2013-11-06 12:34:25 +01:00
perf_event.h perf/x86: Fix constraint table end marker bug 2013-12-05 10:02:30 +01:00
perfctr-watchdog.c perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU 2012-10-04 13:32:37 +02:00
powerflags.c update AMD powerflags comments 2013-05-28 12:02:10 +02:00
proc.c x86/cpu: Always print SMP information in /proc/cpuinfo 2013-11-06 08:13:56 +01:00
rdrand.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
scattered.c treewide: Fix common typo in "identify" 2013-10-14 15:31:06 +02:00
topology.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
transmeta.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
umc.c x86/cpu: Track legacy CPU model data only on 32-bit kernels 2013-10-26 13:34:39 +02:00
vmware.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00