Messages in this thread | | | Date | Thu, 26 Feb 2015 12:34:04 -0800 | From | Andi Kleen <> | Subject | Re: [PATCH V7 1/1] perf tool:perf diff support for different binaries |
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> Having a nice explanation of the problem helps, as my first reaction to > this patch was: "What? This is what this tool is supposed to do, to > compare two versions of a binary, one that is being developed from the > same source, the other with slight modifications, etc", while the > description of the patch made it look as this was a feature that was now > being introduced.
AFAIK it was actually to compare multiple runs of the same binary with different setups: e.g. varying number of threads.
However in the Linux kernel development world it turns out comparing multiple similar binaries is much more useful.
-Andi -- ak@linux.intel.com -- Speaking for myself only
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