Update for this issue. I'm investigating the kernel source.
I found that Perf for AMD seems imperfect in linux 3.0 (my machine's linux version). For AMD family 15h, there is a commented line as follow. - /* nortbridge counters not yet implemented: */ (line 541, perf_event_amd.c ) According to my further exploration, linux 3.2 does not support it either. Does any of you know or have the patch for it? 2012-11-26 오후 9:15, Chulmin Kim 쓴 글: > Update for this issue. > > - rc0 and instruction events show the similar result. > - still, the count of L3 cache miss event is 1/10 of what i expected. > (LLC-load-misses) > > > > 2012-11-26 오후 8:24, Chulmin Kim 쓴 글: >> Hi all. >> >> I'm on the way of monitoring AMD machine. >> >> I wonder Perf is supporting AMD PMU Events perfectly or not. >> >> It seems not working correctly despite the same command works in intel >> machines perfectly. >> >> command : (perf stat -e rc0 -e instructions ./blah) >> result : the value for "rc0" almost equals to that of "instruction" in >> Intel machine, while it does not in AMD machine >> >> >> Other events such as cache events seem weird also. >> >> Is there any material mentioning this issue? >> >> >> >> Thanks! >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-perf-users" >> in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
