Hi Jiri,
On 9/10/2020 5:22 PM, Jiri Olsa wrote:
On Mon, Sep 07, 2020 at 12:15:59PM +0800, Jin Yao wrote:
SNIP
main div.c:39
[ Hot streams in new perf data only ]
hot chain 1:
cycles: 4, hits: 4.54%
On Mon, Sep 07, 2020 at 12:15:59PM +0800, Jin Yao wrote:
SNIP
> main div.c:39
>
> [ Hot streams in new perf data only ]
>
> hot chain 1:
> cycles: 4, hits: 4.54%
> ---
Sometimes, a small change in a hot function reducing the cycles of
this function, but the overall workload doesn't get faster. It is
interesting where the cycles are moved to.
What it would like is to diff before/after streams. The stream is the
branch history which is aggregated by the branch rec
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