[Qemu-devel] pert stat in KVM guest can not get LLC-loads hardware cache
From:
Steven
Subject:
[Qemu-devel] pert stat in KVM guest can not get LLC-loads hardware cache event
Date:
Wed, 27 Aug 2014 00:28:33 -0400
Dear KVM developers:
I am trying use perf stat inside a VM to obtain some hardware cache performance counter values.
The perf stat can report some numbers for L1 and TLB related counters. But for the LLC-loads and LLC-load-misses, the numbers are always 0. It seems that the these offcore events are not exposed to the guest.