On Mon, Jan 30, 2012 at 05:15:53PM +0000, stephane eranian wrote: > Still need to investigate why the frequency mode does > not yield the correct number of samples even with low frequency. > > > $ taskset -c 1 perf record -e cycles -F 100 noploop 10 > $ perf report -D | tail -20 > Aggregated stats: > TOTAL events: 475 > MMAP events: 11 > COMM events: 2 > EXIT events: 2 > SAMPLE events: 460 > cycles stats: > TOTAL events: 475 > MMAP events: 11 > COMM events: 2 > EXIT events: 2 > SAMPLE events: 460 > > 460 samples is way too low. Should be 100x10 = 1000 samples or close to it. Can you stick noploop.c somewhere (I'm lazy :) and I'll try it on one of my A9 boards? Thanks, Will -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
