On Mon, Mar 06, 2017 at 03:32:49PM +0100, Peter Lieven wrote: > is there something equivalent to "CPU ready" in VMWare or „Hyper-V Hypervisor > Virtual Processor\CPU Wait Time Per Dispatch“ in Hyper-V in > KVM/Qemu?
I think you can get this information from "perf sched latency" (see man perf-sched). Restrict it to the vcpu threads and it shows how long a runnable vcpu has to wait (average and maximum). Here is an example from https://lwn.net/Articles/353295/: perf sched record sleep 10 # record full system activity for 10 seconds perf sched latency --sort max # report latencies sorted by max ----------------------------------------------------------------------------------------- Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | ----------------------------------------------------------------------------------------- python:14049 | 114.694 ms | 125 | avg: 0.120 ms | max: 5.343 ms | ... ----------------------------------------------------------------------------------------- TOTAL: | 3144.817 ms | 11654 | --------------------------------------------------- More info: http://www.brendangregg.com/blog/2017-03-16/perf-sched.html Stefan
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