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From: Andi Kleen <andi@firstfloor.org>
To: kan.liang@intel.com
Cc: acme@kernel.org, jolsa@kernel.org, linux-kernel@vger.kernel.org,
	andi@firstfloor.org
Subject: Re: [PATCH 1/1] perf tools: perf diff for different binaries
Date: Fri, 31 Oct 2014 21:03:08 +0100	[thread overview]
Message-ID: <20141031200308.GZ12538@two.firstfloor.org> (raw)
In-Reply-To: <1414757172-20064-1-git-send-email-kan.liang@intel.com>

> 
> If I run old perf diff with --sort dso,symbol, we cannot get any useful
> information for the user space binary. Furthermore, it failed to compare
> the kernel function. E.g. native_write_msr_safe.
> 
> perf diff -s dso,symbol --compute ratio v1_1_6perf.data v2_1_7perf.data

The new option needs to be documented in the manpage

(with a paragraph explaining that it allows comparison
between different versions of the binary)

-Andi

  reply	other threads:[~2014-10-31 20:03 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-31 12:06 [PATCH 1/1] perf tools: perf diff for different binaries kan.liang
2014-10-31 20:03 ` Andi Kleen [this message]
2014-11-03 10:40 ` Jiri Olsa
2014-11-03 14:52   ` Liang, Kan
2014-11-04  5:41 ` Namhyung Kim
2014-11-04 17:07   ` Liang, Kan
2014-11-05  6:32     ` Namhyung Kim
2014-11-05 17:28       ` Liang, Kan
2014-11-06  7:32         ` Namhyung Kim
2014-11-06 14:16           ` Liang, Kan
2014-11-10  5:00             ` Namhyung Kim

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