ps is computing load starting with process start time whereas procfile is computing load since last call about pidusage HOT 4 CLOSED

I believe that the correct behaviour should be computing load since last call.
Isn't it? @vmarchaud

We can use ps to do the same computation we do for procfile and wmic (just using etime and stime instead of using pcpu)
The maths for the 3 method should be almost the identical.

Also, the procfile version should adopt the same behavior wmic does (The first call to the API is internally called twice to compute a meaningful reading.)

from pidusage.

indeed however i personally prefer to use a fs read instead of spawning a process to get this metric.

Yeah! I was talking about macOS where for the moment our only option is to use ps

Yes but then we need to introduce history on ps calls to get elapsed time since last call.,

We just need to copy the code from procfile version, it's identical.

from pidusage.

indeed however i personally prefer to use a fs read instead of spawning a process to get this metric.

from pidusage.

We can use ps to do the same computation we do for procfile and wmic (just using etime and stime instead of using pcpu)

Yes but then we need to introduce history on ps calls to get elapsed time since last call.,

from pidusage.