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| author | Glenn Morris <rgm@gnu.org> | 2021-06-19 08:17:47 -0700 |
|---|---|---|
| committer | Glenn Morris <rgm@gnu.org> | 2021-06-19 08:17:47 -0700 |
| commit | 510458a9f1e7e5a4924e80ceafbaf35e73cfac02 (patch) | |
| tree | 21b617fc6facb241189eded559ad5f53e5a25ac0 /lisp/profiler.el | |
| parent | f8e5871c16a7b36b46833485dbe198ce90922ea5 (diff) | |
| parent | 7722b510aae119162a20cfc67d3057152835a4ba (diff) | |
| download | emacs-510458a9f1e7e5a4924e80ceafbaf35e73cfac02.tar.gz | |
Merge from origin/emacs-27
7722b510aa (origin/emacs-27) Another improvement in documentation of ...
8d5c70d73a Improve documentation of profiler
0ffef0b46b Document 'ispell-program-name'
7be610f911 Fix documentation of 'face-extend-p'
# Conflicts:
# doc/lispref/debugging.texi
Diffstat (limited to 'lisp/profiler.el')
| -rw-r--r-- | lisp/profiler.el | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lisp/profiler.el b/lisp/profiler.el index 64d71f4aab2..8145e51d75d 100644 --- a/lisp/profiler.el +++ b/lisp/profiler.el @@ -822,8 +822,12 @@ below entry at point." (defun profiler-start (mode) "Start/restart profilers. MODE can be one of `cpu', `mem', or `cpu+mem'. -If MODE is `cpu' or `cpu+mem', time-based profiler will be started. -Also, if MODE is `mem' or `cpu+mem', then memory profiler will be started." +If MODE is `cpu' or `cpu+mem', start the time-based profiler, + whereby CPU is sampled periodically using the SIGPROF signal. +If MODE is `mem' or `cpu+mem', start profiler that samples CPU + whenever memory-allocation functions are called -- this is useful + if SIGPROF is not supported, or is unreliable, or is not sampling + at a high enough frequency." (interactive (list (if (not (fboundp 'profiler-cpu-start)) 'mem (intern (completing-read (format-prompt "Mode" "cpu") |