Date: Sun, 6 Dec 2009 23:55:08 +0100 From: Jeremie Le Hen <jeremie@le-hen.org> To: freebsd-stable@FreeBSD.org Cc: jkoshy@FreeBSD.org, jeremie@le-hen.org Subject: Cannot allocate system-mode PMC with spec. "instructions" Message-ID: <20091206225508.GA5494@felucia.tataz.chchile.org>
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Hi list, Joseph, __ Please Cc: me when replying, as I'm not subscribed. __ I've tried to sample my system while performing a big copy between UFS to ZFS using the following command: % # pmcstat -v -S instructions -O $PWD/sample.out % pmcstat: ERROR: Cannot allocate system-mode pmc with specification "instructions": Invalid argument Oddly, other generic events lead to different errors: % obiwan:~/tmp# pmcstat -vv -S cycles -O $PWD/sample.out % pmcstat: ERROR: Cannot allocate system-mode pmc with specification "cycles": Operation not supported But for instance the following works: % obiwan:~/tmp# pmcstat -vv -S branches -O $PWD/sample.out % ^Cobiwan:~/tmp# pmcstat -R sample.out -g % CONVERSION STATISTICS: % #samples/total 3110 % #samples/unclaimed 87 % #callchain/dubious-frames 87 Additional useful informations are: % CPU: Intel(R) Core(TM)2 CPU 6320 @ 1.86GHz (1869.87-MHz 686-class CPU) % Origin = "GenuineIntel" Id = 0x6f6 Stepping = 6 % Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> % Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM> % AMD Features=0x20000000<LM> % AMD Features2=0x1<LAHF> % TSC: P-state invariant % hwpmc: TSC/1/64/0x20<REA> IAP/2/40/0x3ff<INT,USR,SYS,EDG,THR,REA,WRI,INV,QUA,PRC> IAF/0/0/0x61<INT,REA,WRI> Regards, -- Jeremie Le Hen < jeremie at le-hen dot org >< ttz at chchile dot org >
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