Re: moving in the agenda view is slow

From: Rainer Stengele <rainer.stengele@online.de>
To: nicholas.dokos@hp.com
Cc: emacs-orgmode@gnu.org, Eric S Fraga <ucecesf@ucl.ac.uk>,
	Rainer Stengele <rainer.stengele@diplan.de>
Subject: Re: moving in the agenda view is slow
Date: Mon, 29 Nov 2010 11:51:41 +0100	[thread overview]
Message-ID: <4CF385BD.3010101@online.de> (raw)
In-Reply-To: <3201.1290979966@gamaville.dokosmarshall.org>

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Am 28.11.2010 22:32, schrieb Nick Dokos:
> Rainer Stengele <rainer.stengele@diplan.de> wrote:
>
>
>> I tried with pressing "n" step by step 10 times, so no leaning on the "n" key:
>>
>> org-agenda-next-line                                          10          0.3139999999  0.0314
>> next-line                                                     10          0.3139999999  0.0314
>> org-detach-overlay                                            12          0.0           0.0
>> org-agenda-post-command-hook                                  12          0.0           0.0
>> org-agenda-do-context-action                                  10          0.0           0.0
>> org-get-at-bol                                                10          0.0           0.0
>> org-unhighlight                                               12          0.0           0.0
>> font-lock-mode                                                1           0.0           0.0
>> font-lock-default-function                                    1           0.0           0.0
>>
>>
>> I see no change. Emacs is on Windows XP.
>>
> OK - next-line is indeed taking up all the time (but the exact equality
> and the 0.0 times make me wonder about the clock resolution on this
> platform and how reliable elp is here), so, unless there is some
> backdoor connection, these delays have nothing to do with org - it's
> emacs itself which is slow: 31ms per call is not as slow as it was
> yesterday, but it's still 25x what I see.
>
> Eric, do you encounter this problem on Emacs/Windows XP as well? Has
> anybody encountered this problem on anything *but* Emacs/Windows XP?
>
> Rainer, if you'd like to continue the exercise, maybe the thing to do is
> to profile functions that next-line calls and get another profile. The
> only other function that seems likely to take up time is line-move, so
> you might proceed like this:
>
> Set up a minimal emacs so that you don't have to retype everything
> over and over. Something like the following, where I assume you use
> org-install to initialize org - you'll also have to change the load-path
> and the list of org-agenda-files to suit your situation:
>
> --8<---------------cut here---------------start------------->8---
> (add-to-list 'load-path "~/elisp/org-mode/lisp")
> (add-to-list 'auto-mode-alist '("\\.\\(org\\|org_archive\\|txt\\)$" . org-mode))
> (require 'org-install)
> (require 'org-agenda)
> (global-set-key "\C-cl" 'org-store-link)
> (global-set-key "\C-ca" 'org-agenda)
> (global-set-key "\C-cr" 'elp-results)
>
> (elp-instrument-list '(org-agenda-next-line next-line line-move))
> (setq org-agenda-files '("~/lib/org/work.org" "~/lib/org/home.org"))
> (org-agenda-list)
> (elp-reset-all)
> --8<---------------cut here---------------end--------------->8---
>
> Save it in a file called minimal.emacs and then say
>
>      emacs -Q --load minimal.emacs
>
> You should get an agenda - press "n" a dozen times, and then C-c r
> to get the results. You can add more functions to the list above
> (the next few candidates are line-move-partial, line-move-visual,
> line-move-1). Assuming that you get consistent results implicating
> these, I suspect that the thing to do is to post your findings in
> an emacs forum or open an emacs bug report.
>
> I haven't gone back to check your original emails, but is there
> a particular version of emacs that exhibits this problem? Is there
> a version that does *not* exhibit it? When exactly did you start
> noticing this behavior (relative to emacs updates etc)?
>
> Thanks,
> Nick
>
>
>
Continuing the exercice I found:

(elp-instrument-list '(org-agenda-next-line next-line line-move)) results in

org-agenda-next-line  12          0.016         0.0013333333
next-line             12          0.0           0.0
line-move             12          0.0           0.0

(elp-instrument-list '(org-agenda-next-line next-line line-move line-move-partial line-move-visual line-move-1)) results in

org-agenda-next-line  12          0.015         0.00125
next-line             12          0.0           0.0
line-move             12          0.0           0.0
line-move-partial     12          0.0           0.0
line-move-1           12          0.0           0.0

changing to agenda month view and "n"-ing through all entries results in:

org-agenda-next-line  93          0.2180000000  0.0023440860
next-line             93          0.016         0.0001720430
line-move             93          0.0           0.0
line-move-partial     93          0.0           0.0
line-move-1           93          0.0           0.0

further, after elp-instrument-package RET org RET (and doing lots of "n"s and "p"s)

org-agenda-do-context-action                                  445         1.5169999999  0.0034089887
org-display-outline-path                                      428         1.4699999999  0.0034345794
org-get-outline-path                                          428         1.1270000000  0.0026331775
org-up-heading-safe                                           1932        1.0960000000  0.0005672877
org-agenda-next-line                                          224         0.9700000000  0.0043303571
org-agenda-previous-line                                      221         0.8540000000  0.0038642533
line-move                                                     445         0.3070000000  0.0006898876
next-line                                                     224         0.2160000000  0.0009642857
line-move-1                                                   445         0.1980000000  0.0004449438
line-move-partial                                             445         0.109         0.0002449438
org-format-outline-path                                       428         0.078         0.0001822429
org-outline-level                                             3436        0.061         1.77...e-005
org-back-to-heading                                           1932        0.016         8.28...e-006
org-detach-overlay                                            447         0.0           0.0
org-agenda-post-command-hook                                  447         0.0           0.0
org-add-props                                                 1504        0.0           0.0
org-get-at-bol                                                445         0.0           0.0
org-unhighlight                                               447         0.0           0.0

after disabling the showing of the outline path in agenda views:

line-move                                                     430         0.1890000000  0.0004395348
line-move-1                                                   430         0.1730000000  0.0004023255
org-agenda-previous-line                                      214         0.1560000000  0.0007289719
org-agenda-next-line                                          216         0.095         0.0004398148
next-line                                                     216         0.048         0.0002222222
org-agenda-do-context-action                                  430         0.047         0.0001093023
org-detach-overlay                                            431         0.015         3.48...e-005
org-unhighlight                                               431         0.015         3.48...e-005
line-move-partial                                             430         0.0           0.0
org-agenda-post-command-hook                                  431         0.0           0.0
org-get-at-bol                                                430         0.0           0.0

scrolling with "n" and "p" runs smoothly now! Sigh! That means the slowness is connected to my .emacs and org settings!?
I'am afraid I have to go through all the settings and find the culprit.

Rainer

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