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Date: Mon, 5 Mar 2012 16:52:35 +0100 From: Stephane Eranian <eranian@...gle.com> To: Ingo Molnar <mingo@...e.hu> Cc: linux-kernel@...r.kernel.org, acme@...hat.com, peterz@...radead.org, dsahern@...il.com, ravitillo@....gov, khandual@...ux.vnet.ibm.com, asharma@...com, robert.richter@....com, ming.m.lin@...el.com, vweaver1@...s.utk.edu, andi@...stfloor.org, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: Re: [PATCH] perf report: auto-detect branch stack sampling mode On Mon, Mar 5, 2012 at 4:47 PM, Ingo Molnar <mingo@...e.hu> wrote: > > > Another usability bug of the new branch sampling feature is that > typing the obvious: > > $ perf record -b ./myprog > > does not do the obvious thing and default to 'any' but throws a > *very* unhelpful generic perf error: > Fair enough. I can add code to handle this case. > > usage: perf record [<options>] [<command>] > or: perf record [<options>] -- <command> [<options>] > > ... > > Really, we should do better than this. Only people who *want* to > specify finer LBR filters should be forced to specify them. > > Thanks, > > Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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