Yes, perf dumps the status of the counters when it exists. independently from the fact that they have been configured with int=1 or not.
On Wed, Dec 16, 2015 at 3:15 PM, Barret Rhoden <[email protected]> wrote: > On 2015-12-16 at 14:52 "'Davide Libenzi' via Akaros" > <[email protected]> wrote: > > You need to use "-cpu host" in kvm/qemu. Also, those negative numbers > > are fine. > > The IRQ trigger works that you set counter value at -icount, and wait > > the overflow to zero to trigger the PMI IRQ. > > Okay, so if we're using int and icount, then we should ignore the > values we get back and just look at the backtrace samples? (similar to > the timer stuff) > > > The patch is OK, but I don't think we need to worry about PMI version > > 0, especially when we committed on anything which does not have > > x2apic ☺ > > Qemu has had support for x2apic for a while. My rule for "burning the > bridges" is that for virtualization, we can have whatever requirements > we want (burn all the bridges). For general operation, like just > booting, I'd like a basic qemu to run - and preferably other VMMs. > (maybe Akaros too!). > > Anyway, thanks for this patch set. =) > > Merged to master at c9d5a6940cf8..6577674d3c3c (from, to] > > You can see the entire diff with 'git diff' or at > https://github.com/brho/akaros/compare/c9d5a6940cf8...6577674d3c3c > > > Barret > > -- > You received this message because you are subscribed to the Google Groups > "Akaros" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
