diff options
| author | Hyman Huang(黄勇) <huangy81@chinatelecom.cn> | 2022-06-26 01:38:35 +0800 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-07-20 12:15:08 +0100 |
| commit | baa609832e1849915b62be2abfbdc1d0e5909a7b (patch) | |
| tree | 3a679a7051cd4547dabd3afcf1b777bdb1aae60f /include/sysemu | |
| parent | 4a06a7cc053deae16864359a5149bcb4442f8d2a (diff) | |
softmmu/dirtylimit: Implement virtual CPU throttle
Setup a negative feedback system when vCPU thread
handling KVM_EXIT_DIRTY_RING_FULL exit by introducing
throttle_us_per_full field in struct CPUState. Sleep
throttle_us_per_full microseconds to throttle vCPU
if dirtylimit is in service.
Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <977e808e03a1cef5151cae75984658b6821be618.1656177590.git.huangy81@chinatelecom.cn>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'include/sysemu')
| -rw-r--r-- | include/sysemu/dirtylimit.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/sysemu/dirtylimit.h b/include/sysemu/dirtylimit.h index da459f03d6..8d2c1f3a6b 100644 --- a/include/sysemu/dirtylimit.h +++ b/include/sysemu/dirtylimit.h @@ -19,4 +19,19 @@ void vcpu_dirty_rate_stat_start(void); void vcpu_dirty_rate_stat_stop(void); void vcpu_dirty_rate_stat_initialize(void); void vcpu_dirty_rate_stat_finalize(void); + +void dirtylimit_state_lock(void); +void dirtylimit_state_unlock(void); +void dirtylimit_state_initialize(void); +void dirtylimit_state_finalize(void); +bool dirtylimit_in_service(void); +bool dirtylimit_vcpu_index_valid(int cpu_index); +void dirtylimit_process(void); +void dirtylimit_change(bool start); +void dirtylimit_set_vcpu(int cpu_index, + uint64_t quota, + bool enable); +void dirtylimit_set_all(uint64_t quota, + bool enable); +void dirtylimit_vcpu_execute(CPUState *cpu); #endif |