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Message-ID: <20081101022943.GJ1029@erda.amd.com> Date: Sat, 1 Nov 2008 03:29:43 +0100 From: Robert Richter <robert.richter@....com> To: Eric Dumazet <dada1@...mosbay.com> CC: linux kernel <linux-kernel@...r.kernel.org>, Andi Kleen <ak@...ux.intel.com> Subject: Re: linux-2.6.28-rc2 regression : oprofile doesnt work anymore ? Eric, On 30.10.08 19:01:52, Eric Dumazet wrote: > Hi > > I tried to start my favorite tool, and discovered it wont fly on my HP > BL460C G1 > > It samples few events then, seems to stop (no more NMI), other than that, > machine > still running correctly. hmm, I can not reproduce this on my system. I am receiving samples and the number is increasing. Andi, could you test this on some of your systems? -Robert # opcontrol --dump; opreport CPU: AMD64 family10, speed 2100 MHz (estimated) Counted CPU_CLK_UNHALTED events (Cycles outside of halt state) with a unit mask of 0x00 (No unit mask) count 100000 CPU_CLK_UNHALT...| samples| %| ------------------ 70897 98.6970 vmlinux 467 0.6501 libc-2.6.1.so 219 0.3049 bash 141 0.1963 ld-2.6.1.so 43 0.0599 oprofiled 15 0.0209 gawk-3.1.5 15 0.0209 opreport 9 0.0125 libstdc++.so.6.0.8 8 0.0111 grep 5 0.0070 sshd 4 0.0056 libcrypto.so.0.9.8 2 0.0028 rm 1 0.0014 cat 1 0.0014 dirname 1 0.0014 ls 1 0.0014 mkdir 1 0.0014 id 1 0.0014 ophelp 1 0.0014 libbfd-2.18.so 1 0.0014 ntpd # grep NMI /proc/interrupts NMI: 20357 14272 20151 9967 20140 13961 16291 20826 Non-maskable interrupts # grep NMI /proc/interrupts NMI: 20627 14458 20398 10080 20391 14204 16444 21016 Non-maskable interrupts # cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : Quad-Core AMD Opteron(tm) Processor 2352 stepping : 3 cpu MHz : 2100.000 cache size : 512 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good pni monitor cx16 lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs bogomips : 4189.26 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate # uname -a Linux paloma 2.6.28-rc2-oprofile-x86_64-standard #1 SMP Sat Nov 1 01:28:08 CET 2008 x86_64 Quad-Core AMD Opteron(tm) Processor 2352 AuthenticAMD GNU/Linux -- Advanced Micro Devices, Inc. Operating System Research Center email: robert.richter@....com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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