From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Emacs/prelude: lag in opening big files
Date: Fri, 21 Jul 2017 16:43:50 +0300 [thread overview]
Message-ID: <83o9sdaort.fsf@gnu.org> (raw)
In-Reply-To: <25646CD8-2C85-4840-B72F-8B2EE79D9349@agrarianresearch.org> (message from Vikas Rawal on Fri, 21 Jul 2017 07:37:55 +0530)
> From: Vikas Rawal <vikaslists@agrarianresearch.org>
> Date: Fri, 21 Jul 2017 07:37:55 +0530
>
> I am having a strange problem that I have never faced before. When I open (C-f) a large file, it gets stuck for a long time. I have to wait for eternity before the file would open. But if I C-g and cancel the process, and do it again, the second time, it opens in a snap.
> I have tried it with many files, and it happens each time. If a file is opened and closed, and I want to open it again, emacs does the same thing all over again. That is, slow to open first time, but opens in a snap if I C-g and start again.
>
> How do I debug this? I tried to use profiler to figure out where was emacs stuck. Below is the main part of the report on cpu usage when I tried to open a large org mode file. Looks like helm is one of the culprits. Is this usual? Is there a way to deal with this?
>
> Vikas
>
>
>
>
> - command-execute 6903 57%
> - call-interactively 6903 57%
> - funcall-interactively 6575 54%
> - helm-find-files 6575 54%
> - helm-find-files-1 6575 54%
> - helm 6575 54%
> - apply 6575 54%
> - helm 6575 54%
> - apply 6575 54%
> - helm-internal 6575 54%
> - helm-execute-selection-action 6103 50%
> - helm-execute-selection-action-1 6103 50%
> - helm-find-file-or-marked 6102 50%
> - apply 6102 50%
> + #<compiled 0x40bf3dad> 6102 50%
> + helm-get-actions-from-current-source 1 0%
You stopped expanding the profile too early: you should continue
expanding "#<compiled 0x40bf3dad>" and the levels below it, until you
find a significant change in the percentage -- that is where most of
the CPU processing is spent. (My guess would be it's
org-indent-add-properties, but that's just a guess.) For more
accurate profile, load all the libraries involved in this as *.el
files, not as *.elc.
(This should probably be a bug report.)
next prev parent reply other threads:[~2017-07-21 13:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-21 2:07 Emacs/prelude: lag in opening big files Vikas Rawal
2017-07-21 13:43 ` Eli Zaretskii [this message]
2017-07-21 14:34 ` Stefan Monnier
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