On Thu, 2013-07-25 at 13:04 +0200, Peter Zijlstra wrote: > On Wed, Jul 24, 2013 at 12:26:42PM +1000, Michael Ellerman wrote: > > > > I would have used "p" obviously, but that's taken. Are folks happy that > > "P" is sufficiently different from "p"? I couldn't think of anything > > better. > > I've seen proposals where 'P' is used for the max 'p' level :/
Hmm, OK. So 'p' is for precise, which maps onto a 2 bit field in perf_event_attr.precise_ip. No 'p' modifier means precise_ip = 0, so the max value of 3 would be 'ppp' right? We don't use 'p' so I have no idea how often it's used and whether typing 'ppp' is going to be a major pain for people. > But yes, vexing situation. Quite. Nothing jumps out as an obvious alternative, including any of the symbols. So how about 'D'. Because it makes a smiley face: $ perf stat -e cycles:D And having perf smile at you can't be a bad thing. cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
