Re: [tip:perfcounters/urgent] perf stat: Improve output

Ingo Molnar
2009-06-29T19:52:57Z

* Peter Zijlstra <peterz@infradead.org> wrote:

> On Sat, 2009-06-27 at 17:31 +0000, tip-bot for Jaswinder Singh Rajput
> wrote:
> > Before:
> > 150708 L1-d$-stores (scaled from 23.57%)
> > 428804 L1-d$-prefetches (scaled from 23.47%)
> > 314446 L1-d$-prefetch-misses (scaled from 23.42%)
> > 252626137 L1-i$-loads (scaled from 23.24%)
> > 5297550 dTLB-load-misses (scaled from 23.96%)
> > 106992392 branch-loads (scaled from 23.67%)
> > 5239561 branch-load-misses (scaled from 23.43%)
> >
> > After:
> > 1731713 L1-d$-loads ( 14.25x scaled)
> > 44241 L1-d$-prefetches ( 3.88x scaled)
> > 21076 L1-d$-prefetch-misses ( 3.40x scaled)
> > 5789421 L1-i$-loads ( 3.78x scaled)
> > 29645 dTLB-load-misses ( 2.95x scaled)
> > 461474 branch-loads ( 6.52x scaled)
> > 7493 branch-load-misses ( 26.57x scaled)
>
> I really rather like the before better. Its far easier to get a
> feel for the overload factor from a fraction that from this
> multiplier.

ok - i reverted this portion. I liked the multiplicator a bit more -
but you seem to have a strong preference for the percentage unit.

Ingo