From: Andi Kleen <andi@firstfloor.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: acme@infradead.org, linux-kernel@vger.kernel.org,
eranian@google.com, namhyung@kernel.org, jolsa@redhat.com
Subject: Re: [PATCH] perf, tools: Support spark lines in perf stat v2
Date: Tue, 13 May 2014 07:08:24 -0700 [thread overview]
Message-ID: <87ppjh4vqf.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <20140513092748.GT30445@twins.programming.kicks-ass.net> (Peter Zijlstra's message of "Tue, 13 May 2014 11:27:48 +0200")
Peter Zijlstra <peterz@infradead.org> writes:
>
> Hmm, my first looking at the spark thingies interpreted them as a
> histogram. But they're not really.
It's a histogram of variance.
> Would it be possible to make it a histogram of -2sigma,2sigma around the
> avg value? That way you can plot all data and get a good idea of the
> distribution. I'd suggest using 9 buckets for it.
I doubt that would work well with only ~8 values.
This would need multiple lines or a real plotter,
otherwise you would have all kinds of odd corner cases.
Sparklines are much better for limited space.
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2014-05-13 14:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 23:01 [PATCH] perf, tools: Support spark lines in perf stat v2 Andi Kleen
2014-05-13 9:27 ` Peter Zijlstra
2014-05-13 14:08 ` Andi Kleen [this message]
2014-05-26 17:33 ` Jiri Olsa
2014-05-28 0:18 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2014-04-14 16:09 Andi Kleen
2014-04-15 6:35 ` Namhyung Kim
2014-04-16 18:46 ` Andi Kleen
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