On 12/12/2013 07:55 PM, Mel Gorman wrote: > There was a large performance regression that was bisected to commit 611ae8e3 > (x86/tlb: enable tlb flush range support for x86). This patch simply changes > the default balance point between a local and global flush for IvyBridge. > > Signed-off-by: Mel Gorman <[email protected]>
agree to be more conservative. Reviewed-by: Alex Shi <[email protected]> > --- > arch/x86/kernel/cpu/intel.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c > index dc1ec0d..2d93753 100644 > --- a/arch/x86/kernel/cpu/intel.c > +++ b/arch/x86/kernel/cpu/intel.c > @@ -627,7 +627,7 @@ static void intel_tlb_flushall_shift_set(struct > cpuinfo_x86 *c) > tlb_flushall_shift = 5; > break; > case 0x63a: /* Ivybridge */ > - tlb_flushall_shift = 1; > + tlb_flushall_shift = 2; > break; > default: > tlb_flushall_shift = 6; > -- Thanks Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
