sysstat is a collection of system performance Linux tools. The set includes sar, iostat, and mpstat.

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running vmstat every 300 millisecond

Is there any way to run vmstat, iostat, sar commands repeatedly with an interval of 300 milliseconds? I know the defaults is 1 second but I want to run every 300 millisecond for system performance ...
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Invoke and track memory usage of one process in linux

I want to run a memory-consuming program and track its memory usage over time. The program ends in a few seconds after invoked. This previous question suggested sysstat package . While its pidstat ...