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| author | Paul Eggert <eggert@cs.ucla.edu> | 2012-10-01 23:30:40 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2012-10-01 23:30:40 -0700 |
| commit | b3ecad33ae977f9dd0bdd3e0a10cd8603f54a398 (patch) | |
| tree | 9641b9d035dc733b9f3600557becdcb0ffc31290 /lisp/profiler.el | |
| parent | 8cb51b66fcb7a0954437108f8a1d05d6af6dcf89 (diff) | |
| download | emacs-b3ecad33ae977f9dd0bdd3e0a10cd8603f54a398.tar.gz | |
Count overruns when profiling; change units to ns.
* 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.
Diffstat (limited to 'lisp/profiler.el')
| -rw-r--r-- | lisp/profiler.el | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lisp/profiler.el b/lisp/profiler.el index 55e706ec70b..efa23e7aec0 100644 --- a/lisp/profiler.el +++ b/lisp/profiler.el @@ -33,8 +33,8 @@ (defconst profiler-version "24.3") -(defcustom profiler-sampling-interval 1 - "Default sampling interval in millisecond." +(defcustom profiler-sampling-interval 1000000 + "Default sampling interval in nanoseconds." :type 'integer :group 'profiler) @@ -323,8 +323,8 @@ function name of a function itself." :group 'profiler) (defvar profiler-report-cpu-line-format - '((60 left) - (14 right ((9 right) + '((50 left) + (24 right ((19 right) (5 right))))) (defvar profiler-report-memory-line-format @@ -551,7 +551,7 @@ otherwise collapse." (cpu (profiler-report-header-line-format profiler-report-cpu-line-format - "Function" (list "Time (ms)" "%"))) + "Function" (list "CPU samples" "%"))) (memory (profiler-report-header-line-format profiler-report-memory-line-format |