Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2007-01-02 Thread hui
On Tue, Jan 02, 2007 at 03:12:34PM -0800, Bill Huey wrote: > On Tue, Jan 02, 2007 at 02:51:05PM -0800, Chen, Tim C wrote: > > Bill, > > > > I'm having some problem getting this patch to run stablely. I'm > > encoutering errors like that in the trace that follow: > > It might the case that the lo

Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2007-01-02 Thread hui
On Tue, Jan 02, 2007 at 02:51:05PM -0800, Chen, Tim C wrote: > Bill, > > I'm having some problem getting this patch to run stablely. I'm > encoutering errors like that in the trace that follow: > > Thanks. > Tim > > Unable to handle kernel NULL pointer dereference at 0008 Yes, thos

RE: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2007-01-02 Thread Chen, Tim C
Bill Huey (hui) wrote: > On Tue, Dec 26, 2006 at 04:51:21PM -0800, Chen, Tim C wrote: >> Ingo Molnar wrote: >>> If you'd like to profile this yourself then the lowest-cost way of >>> profiling lock contention on -rt is to use the yum kernel and run >>> the attached trace-it-lock-prof.c code on the

Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2006-12-30 Thread hui
On Sat, Dec 30, 2006 at 06:56:08AM -0800, Daniel Walker wrote: > On Sat, 2006-12-30 at 12:19 +0100, Ingo Molnar wrote: > > > > > - Documentation/CodingStyle compliance - the code is not ugly per se > >but still looks a bit 'alien' - please try to make it look Linuxish, > >if i apply this

Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2006-12-30 Thread Daniel Walker
On Sat, 2006-12-30 at 12:19 +0100, Ingo Molnar wrote: > > - Documentation/CodingStyle compliance - the code is not ugly per se >but still looks a bit 'alien' - please try to make it look Linuxish, >if i apply this we'll probably stick with it forever. This is the >major reason i have

Re: [PATCH] lock stat for -rt 2.6.20-rc2-rt2 [was Re: 2.6.19-rt14 slowdown compared to 2.6.19]

2006-12-30 Thread Ingo Molnar
* Bill Huey <[EMAIL PROTECTED]> wrote: > On Tue, Dec 26, 2006 at 04:51:21PM -0800, Chen, Tim C wrote: > > Ingo Molnar wrote: > > > If you'd like to profile this yourself then the lowest-cost way of > > > profiling lock contention on -rt is to use the yum kernel and run the > > > attached trace-it