Messages in this thread | | | Date | Sun, 16 Apr 2006 01:06:40 +0200 | From | Adrian Bunk <> | Subject | Re: [PATCH] Default CONFIG_DEBUG_MUTEXES to n |
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On Sat, Apr 15, 2006 at 03:45:38PM -0700, Martin J. Bligh wrote: > CONFIG_DEBUG_MUTEXES has a significant performant impact (reduced perf > of reaim by 50% on ia32 NUMA boxes). It should not be on by default. > > Signed-off-by: Martin J. Bligh <mbligh@google.com> > >
> diff -aurpN -X /home/mbligh/.diff.exclude linux-2.6.17-rc1/lib/Kconfig.debug 2.6.17-rc1_no_mutex_dbg/lib/Kconfig.debug > --- linux-2.6.17-rc1/lib/Kconfig.debug 2006-04-15 15:28:54.000000000 -0700 > +++ 2.6.17-rc1_no_mutex_dbg/lib/Kconfig.debug 2006-04-15 15:44:14.000000000 -0700 > @@ -101,7 +101,7 @@ config DEBUG_PREEMPT > > config DEBUG_MUTEXES > bool "Mutex debugging, deadlock detection" > - default y > + default n >... > config DEBUG_SPINLOCK > bool "Spinlock debugging" > + default n >...
"default n" has no effect and can be removed.
cu Adrian
--
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