Re: Elisp native profiler

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Cc: address@hidden
> Date: Sat, 29 Sep 2012 12:06:21 -0400
> 
> > Why do functions like scroll-up-command and jit-lock-function appear
> > twice or three times, once under call-interactively, the other time by
> > themselves or under scroll-up?
> 
> I'd guess it's because of the FIXME in profiler-call-tree-build-1.
> I.e. you should be able to work around this limitation by increasing
> profiler-max-stack-depth.

Yes, looks more reasonable with 64 (vs default 16), see below.  Should
the default be increased?

 - call-interactively                                              160  87%
   - scroll-up-command                                             112  61%
     - scroll-up                                                   112  61%
       - jit-lock-function                                         106  58%
         - jit-lock-fontify-now                                    106  58%
           - byte-code                                             106  58%
             - run-hook-with-args                                  106  58%
               - font-lock-fontify-region                          106  58%
                 - c-font-lock-fontify-region                      106  58%
                   - font-lock-default-fontify-region               94  51%
                     - font-lock-fontify-keywords-region            94  51%
                       - c-font-lock-declarations                   63  34%
                         - c-find-decl-spots                        63  34%
                           - #<compiled 0xd4164d>                   62  34%
                             + c-parse-state                        12   6%
                             + c-determine-limit                    12   6%
                             + c-beginning-of-decl-1                11   6%
                             + c-forward-decl-or-cast-1              7   3%
                             + c-cheap-inside-bracelist-p            7   3%
                             + c-backward-sws                        5   2%
                             + c-forward-label                       3   1%
                             + c-backward-token-2                    3   1%
                               looking-at                            1   0%
                             looking-at                              1   0%
                       - c-font-lock-enclosing-decls                22  12%
                         - c-beginning-of-decl-1                    19  10%
                           - byte-code                              19  10%
                             - c-beginning-of-statement-1           12   6%
                               + byte-code                           9   4%
                               + c-backward-sws                      3   1%
                             + c-in-knr-argdecl                      7   3%
                         + c-parse-state                             3   1%
                       + c-font-lock-complex-decl-prepare            3   1%
                       + #<compiled 0xd50bf9>                        2   1%
                         re-search-forward                           2   1%
                       + #<compiled 0xd50bdb>                        1   0%
                       + #<compiled 0xd53453>                        1   0%
                   - mapc                                           12   6%
                     - #<compiled 0x4015749>                        12   6%
                       - c-context-set-fl-decl-start                12   6%
                         - c-set-fl-decl-start                      12   6%
                           + c-beginning-of-decl-1                   8   4%
                           + c-determine-limit                       3   1%
                           + c-literal-limits                        1   0%
   - list                                                           48  26%
     - read-extended-command                                        48  26%
       - completing-read                                            48  26%
         - completing-read-default                                  48  26%
           - read-from-minibuffer                                   48  26%
               redisplay_internal (C function)                       1   0%
 - redisplay_internal (C function)                                  11   6%
   - jit-lock-function                                               8   4%
     - jit-lock-fontify-now                                          8   4%
       - byte-code                                                   8   4%
         - run-hook-with-args                                        8   4%
           - font-lock-fontify-region                                8   4%
             - c-font-lock-fontify-region                            8   4%
               - font-lock-default-fontify-region                    8   4%
                 - font-lock-fontify-keywords-region                 8   4%
                   - c-font-lock-declarations                        4   2%
                     + c-find-decl-spots                             4   2%
                     re-search-forward                               2   1%
                   - c-font-lock-enclosing-decls                     2   1%
                     + c-parse-state                                 2   1%
   Automatic GC                                                     11   6%