Messages in this thread | | | Date | Mon, 28 Mar 2011 09:52:23 +0100 | From | Matt Fleming <> | Subject | Re: [RFC] perf: EBNF for event syntax |
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On Mon, 28 Mar 2011 09:58:10 +0200 Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Groups are most useful in measuring events on another base, which is > basically mandatory if your primary event doesn't have sampling > support itself.
Just FYI...
When I was looking at group event support for SH (because the hardware doesn't have sampling support) I was trying to avoid the user being required to setup the groups on the command-line, e.g. I wrote it so that the group event creation was all done "behind the scenes".
For those architectures/platforms that are missing sampling support I still think that group event creation should be as invisible as possible.
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