diff options
| author | Jim Mattson <[email protected]> | 2024-07-24 12:05:09 -0700 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2024-07-26 13:33:25 -0400 |
| commit | 0005ca2076ad222de34de519c47b0eb80f458877 (patch) | |
| tree | 0b4e558a46a3f3f2a7b5232017b425e645a3fc84 /tools/perf/scripts/python/Perf-Trace-Util | |
| parent | 332d2c1d713e232e163386c35a3ba0c1b90df83f (diff) | |
KVM: x86: Eliminate log spam from limited APIC timer periods
SAP's vSMP MemoryONE continuously requests a local APIC timer period
less than 500 us, resulting in the following kernel log spam:
kvm: vcpu 15: requested 70240 ns lapic timer period limited to 500000 ns
kvm: vcpu 19: requested 52848 ns lapic timer period limited to 500000 ns
kvm: vcpu 15: requested 70256 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 70256 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 70208 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 387520 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 70160 ns lapic timer period limited to 500000 ns
kvm: vcpu 66: requested 205744 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 70224 ns lapic timer period limited to 500000 ns
kvm: vcpu 9: requested 70256 ns lapic timer period limited to 500000 ns
limit_periodic_timer_frequency: 7569 callbacks suppressed
...
To eliminate this spam, change the pr_info_ratelimited() in
limit_periodic_timer_frequency() to pr_info_once().
Reported-by: James Houghton <[email protected]>
Signed-off-by: Jim Mattson <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util')
0 files changed, 0 insertions, 0 deletions