benchmark-load/me.ahoo.wow.benchmark.load/ProcessTreeCpu

ProcessTreeCpu

The CPU of the load generator's whole process tree: this JVM and every process it started, by pid. The samplers it starts for a run (jstat JVMs, the docker clients) inherit its CPUs, so they take the generator's cores too, and a share of those cores that counted only this JVM could read a saturated generator as one with room to spare.

Functions

since

fun since(before: Map<Long, Double>, after: Map<Long, Double>): Double

The CPU seconds the tree used from before to after: each process's growth, and the whole time of one that started in between. A process that ended in between has left after, and with it what it used since before.

snapshot

fun snapshot(): Map<Long, Double>

The cumulative CPU seconds of this process and each of its descendants alive now, by pid; 0 for one whose CPU time the platform does not tell (macOS may not for another process; Linux, where the benchmarks run, does).