License block: Vezha capabilitiesWhat showsCPU per core IOWAIT in Vezha is displayed as cpu.core_iowait_pct with label core .This is a detailed picture where exactly the processor profile shows disk expectations.Why is this important?When the problem is localized to a portion of the cores, the average value masks the real cause of the degradation.Viewing by cores allows you to quickly narrow the search to a specific class of tasks or queue.An example from practiceAt the production site, degradation appeared in waves.Kernel analysis showed repeated spikes in iowait when a particular job was running, after which its execution window was moved to a less busy period.
CPU per core IOWAIT
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