On Mon, Nov 10, 2014 at 01:54:03PM +, Liang, Kan wrote:
>
> Yes, Zheng's patches are exact same patches as you already had. I only
> remove 11, 13,16, 17 from previous patch set and add your new patch (no
> change).
OK thanks for confirming, I didn't find any changes, but that could
equally
>
> On Thu, Nov 06, 2014 at 09:54:17AM -0500, Kan Liang wrote:
> > Yan, Zheng (13):
> > perf, x86: Reduce lbr_sel_map size
> > perf, core: introduce pmu context switch callback
> > perf, x86: use context switch callback to flush LBR stack
> > perf, x86: Basic Haswell LBR call stack suppo
On Thu, Nov 06, 2014 at 09:54:17AM -0500, Kan Liang wrote:
> Yan, Zheng (13):
> perf, x86: Reduce lbr_sel_map size
> perf, core: introduce pmu context switch callback
> perf, x86: use context switch callback to flush LBR stack
> perf, x86: Basic Haswell LBR call stack support
> perf, core
This is the kernel patch.
For many profiling tasks we need the callgraph. For example we often
need to see the caller of a lock or the caller of a memcpy or other
library function to actually tune the program. Frame pointer unwinding
is efficient and works well. But frame pointers are off by defau
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