measure the pre-reactor IO latency #496
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davidblewett
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Jan 7, 2022
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We now record three kinds of source latencies: * pre-reactor: the time the source spent queued (this commit); * io: the time the source spent in the kernel; * post-reactor: the time the scheduler took to get back at the consuming task. Previously, the time the source was queued counted towards IO latency (second item in the list).
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We now record three kinds of source latencies:
task.
Previously, the time the source was queued counted towards IO
latency (second item in the list).