On Wed, 28 Sep 2011 01:44:42, George Neville-Neil wrote: GNN> If you count them individually do you still get the overflows? That is, if you run GNN> the same workload but only count instructions, then run it again with the next counter, GNN> etc. I am wondering if something is wrong because of the number of things you're trying GNN> to count at the same time.
for one counter problem the same. This test on other hardware: CPU: Intel(R) Xeon(R) CPU E5335 @ 2.00GHz (2004.98-MHz K8-class CPU) hwpmc: TSC/1/64/0x20<REA> IAP/2/40/0x3ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA,PRC> IAF/3/40/0x61<INT,REA,WRI> Counter for DTLB_MISSES.ANY should overflow at 2^40 - 1 But again I see overflow near 2^31 # pmcstat -C -w1 -d -p DTLB_MISSES.ANY -o pmc.log -t 10924 from log: 2022802283 2041525661 2061836744 2083646634 2103665903 2123998093 2142902046 1097377998076 1097397893694 1097424659734 1097446393399 1097469768564 1097495460707 1097519426191 -- 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"