• Paul Eggert's avatar
    Count overruns when profiling; change units to ns. · b3ecad33
    Paul Eggert authored
    * lisp/profiler.el (profiler-sampling-interval): Change units
    from ms to ns, multiplying the default by 1000000 so that
    it remains 1 ms.
    (profiler-report-cpu-line-format): Give enough room for
    the maximum counters on 64-bit hosts.
    (profiler-report-render-calltree-1): Call them "CPU samples",
    not "Time (ms)", since they are not milliseconds now (and
    never really were).
    * src/profiler.c (handle_profiler_signal): Count sampling intervals, not ms.
    Give extra weight to samples after overruns, to attempt to count
    the time more accurately.
    (setup_cpu_timer): Change sampling interval units from ms to ns, since
    the underlying primitives nominally do ns.
    (Fprofiler_cpu_start): Document the change.  Mention that
    the sampling intervals are only approximate.
profiler.el 23.3 KB