➜  2305 pidstat -t -p 2305 1
Linux 5.4.0-74-generic (labile-T30) 	2021年06月24日 	_x86_64_	(2 CPU)

18时37分39秒   UID      TGID       TID    %usr %system  %guest   %wait    %CPU   CPU  Command
18时37分40秒 64055      2305         -    1.00    2.00   14.00    3.00   17.00     1  qemu-system-x86
18时37分40秒 64055         -      2305    1.00    1.00    0.00    3.00    2.00     1  |__qemu-system-x86
18时37分40秒 64055         -      2307    0.00    0.00    0.00    0.00    0.00     0  |__qemu-system-x86
18时37分40秒 64055         -      2312    0.00    0.00    0.00    0.00    0.00     0  |__IO mon_iothread
18时37分40秒 64055         -      2313    0.00    0.00    9.00    5.00    9.00     1  |__CPU 0/KVM
18时37分40秒 64055         -      2314    0.00    2.00    5.00    5.00    7.00     0  |__CPU 1/KVM
18时37分40秒 64055         -      2316    0.00    0.00    0.00    1.00    0.00     1  |__SPICE Worker
18时37分40秒 64055         -     76701    0.00    0.00    0.00    0.00    0.00     0  |__worker

perf kvm stat live

18:42:23.185815

Analyze events for all VMs, all VCPUs:

             VM-EXIT    Samples  Samples%     Time%    Min Time    Max Time         Avg time 

           MSR_WRITE        648    60.67%     5.04%      0.47us 181016.17us    715.22us ( +-  44.28% )
                 HLT        207    19.38%    92.36%      2.05us 3684299.87us  40991.17us ( +-  43.93% )
  EXTERNAL_INTERRUPT         85     7.96%     1.43%      0.34us  43275.57us   1540.36us ( +-  50.18% )
    PREEMPTION_TIMER         78     7.30%     0.25%      0.66us  12804.28us    294.09us ( +-  69.79% )
   PENDING_INTERRUPT         49     4.59%     0.93%      0.60us  84909.22us   1735.07us ( +-  99.87% )
   PAUSE_INSTRUCTION          1     0.09%     0.00%      0.82us      0.82us      0.82us ( +-   0.00% )

Total Samples:1068, Total events handled time:9187522.33us.