What can I do to debug this situation ? Is there a possibility to enforce a particular PMU model, for example by direct usage of the library ?
out of curiosity, can you send your /proc/cpuinfo file? The important info is the family/model/stepping info. Until recently the various perf counter implementations had slightly different support for the various Nehalem EX models and one of them might have fallen through the cracks. Vince No problem: processor : 47 vendor_id : GenuineIntel cpu family : 6 model : 46 model name : Intel(R) Xeon(R) CPU E7530 @ 1.87GHz stepping : 6 cpu MHz : 1861.760 cache size : 12288 KB physical id : 3 siblings : 12 core id : 11 cpu cores : 6 apicid : 119 initial apicid : 119 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : 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 ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 x2apic lahf_lm ida tpr_shadow vnmi flexpriority ept vpid bogomips : 3723.92 clflush size : 64 cache_alignment : 64 address sizes : 44 bits physical, 48 bits virtual power management: Best, Peter. ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel