It seems to be, that hwpmc counters overflow is not properly handled. I want to count TLB misses and run:
pmcstat -C -w1 -d -p INSTR_RETIRED_ANY -p DTLB_MISSES.ANY -p MEM_LOAD_RETIRED.DTLB_MISS -p ITLB_MISSES.ANY -p MEM_LOAD_RETIRED.L3_MISS With -C values should monotonous increase, but in output I see overflous. Example output: http://pastebin.com/JiEF9AcU 2120463169 2139646836 281472837488169 281472855479093 2139646836 is near to 2^31 - max value for signed int (int32_t) -- Anton Yuzhaninov _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscr...@freebsd.org"
