On Fri, Nov 10, 2006 at 01:10:15PM -0500, Hua-Ying Ling wrote: > Hi Stephane, > > On 11/10/06, Stephane Eranian <[EMAIL PROTECTED]> wrote: > >> [EMAIL PROTECTED]:~/testc/debug/src> dmesg|grep perfmon > >> Linux version 2.6.18-perfmon2-smp ([EMAIL PROTECTED]) (gcc version 4.1.0 > >> (SUSE Linux)) #2 SMP Wed Oct 11 22:02:37 EDT 2006 > >> perfmon: CPU0 APIC mask=0x100ee > >> perfmon: version 2.2 > >> perfmon: added sampling format default > >> perfmon: cores/package=2 threads/core=0 > >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > >> perfmon: HyperThreading supported, status off > >> perfmon: Data Save Area (DS) supported > >> perfmon: PEBS supported, status off (because of HT) > > ^^^^^^^^^^^^^^^^^^^^^^^^^^ > >those 2 messages look strange to me. Make sure you have Hyperthreading OFF. > > I thought that was strange too but the Pentium D 820 doesn't support > Hyperthreading... is it possible perfmon isn't detecting HT correctly?
Yes, detecting HT correctly is not an easy thing because I do not JUST want to know if the processor is capable of HT but what matters most is is they are activated (via the BIOS). I do not have a Pentium D at hands that I can test things on. Obviously there is something wrong with detection but I think there may be more than this. I will try you program on my Pentium 4. -- -Stephane _______________________________________________ perfmon mailing list [email protected] http://www.hpl.hp.com/hosted/linux/mail-archives/perfmon/
