package b0

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CPU time spans
CPU time counters

package b0

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Measuring CPU user and system time.

CPU time spans

type span

The type for CPU execution time spans.

val span : 
  utime:Mtime.span ->
  stime:Mtime.span ->
  children_utime:Mtime.span ->
  children_stime:Mtime.span ->
  span

span ~utime ~stime ~children_utime ~children_stime is a cpu span with the given fields. See accessors for semantics.

val zero : span

zero is zero CPU times.

val utime : span -> Mtime.span

utime cpu is cpu's user time.

val stime : span -> Mtime.span

stime cpu is cpu's system time.

val children_utime : span -> Mtime.span

children_utime cpu is cpu's user time for children processes.

val children_stime : span -> Mtime.span

children_stime cpu is cpu's system time for children processes.

CPU time counters

type counter

The type for CPU time counters.

val counter : unit -> counter

counter () is a counter counting from now on.

val count : counter -> span

count c are CPU times since c was created.