RE: [PATCH V3 1/3] perf tools: enable LBR call stack support

2014-11-18 Thread Liang, Kan
> > On Fri, 14 Nov 2014 08:44:10 -0500, kan liang wrote: > > From: Kan Liang > > > > Currently, there are two call chain recording options, fp and dwarf. > > Haswell has a new feature that utilizes the existing LBR facility to > > record call chains. So it provides the third options to record ca

Re: [PATCH V3 1/3] perf tools: enable LBR call stack support

2014-11-17 Thread Namhyung Kim
On Fri, 14 Nov 2014 08:44:10 -0500, kan liang wrote: > From: Kan Liang > > Currently, there are two call chain recording options, fp and dwarf. > Haswell has a new feature that utilizes the existing LBR facility to > record call chains. So it provides the third options to record call > chain. This

[PATCH V3 1/3] perf tools: enable LBR call stack support

2014-11-14 Thread kan . liang
From: Kan Liang Currently, there are two call chain recording options, fp and dwarf. Haswell has a new feature that utilizes the existing LBR facility to record call chains. So it provides the third options to record call chain. This patch enables the lbr call stack support. LBR call stack has s