diff options
| author | Wanpeng Li <[email protected]> | 2020-09-10 17:50:40 +0800 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2020-09-28 07:57:09 -0400 |
| commit | 68ca7663c75b099539fe675fc5387dee44d3a6cc (patch) | |
| tree | ebc0821cfc5dd0438fc83e7c2803c1e487d8c0b8 /tools/perf/scripts/python/flamegraph.py | |
| parent | 275038332f22d15796f1921f672b024d5cb392bc (diff) | |
KVM: LAPIC: Narrow down the kick target vCPU
The kick after setting KVM_REQ_PENDING_TIMER is used to handle the timer
fires on a different pCPU which vCPU is running on. This kick costs about
1000 clock cycles and we don't need this when injecting already-expired
timer or when using the VMX preemption timer because
kvm_lapic_expired_hv_timer() is called from the target vCPU.
Reviewed-by: Sean Christopherson <[email protected]>
Signed-off-by: Wanpeng Li <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions