RE: [Resend][PATCH V3] trace,x86: add x86 irq vector tracepoints
From: Seiji Aguchi
Date: Wed Sep 12 2012 - 09:38:00 EST
I will submit some performance testing result.
> -----Original Message-----
> From: H. Peter Anvin [mailto:hpa@xxxxxxxxx]
> Sent: Wednesday, September 12, 2012 12:18 AM
> To: Seiji Aguchi
> Cc: Thomas Gleixner (tglx@xxxxxxxxxxxxx); linux-kernel@xxxxxxxxxxxxxxx; rostedt@xxxxxxxxxxx; 'mingo@xxxxxxx' (mingo@xxxxxxx);
> x86@xxxxxxxxxx; dle-develop@xxxxxxxxxxxxxxxxxxxxx; Satoru Moriya
> Subject: Re: [Resend][PATCH V3] trace,x86: add x86 irq vector tracepoints
> On 09/11/2012 05:00 PM, Seiji Aguchi wrote:
> > Thomas,
> > Please review my patch as we talked in Plumbers.
> Is there any measurable latency added here? These are some of the most
> performance- (or at least latency-)critical paths in the kernel.
> H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.