-Will _______________________________________________ perfmon mailing list [email protected] http://www.hpl.hp.com/hosted/linux/mail-archives/perfmon/
OProfile splits the perfmon hardware between the two logical processor when the
P4 has hyperthreading enabled and it appears that Perfmon2 does the same. On
OProfile the number of events supported in hyperthreaded mode is considerably
reduced because the P4 in HT doesn't track which logical processor an event came
from. However, libpfm doesn't seem to do this for hyperthreading. How does
perfmon2 keep the events from the logical processors separate? Isn't this going
to present a problem for per thread event counting?
- [perfmon] perfmon2 on Hyper-Threaded Pentium4 William Cohen
- Re: [perfmon] perfmon2 on Hyper-Threaded Pentium4 Stephane Eranian
