Debugging slow down over time

Debugging slow down over time

[Sebastian Fischmeister]

Hi,

For some time already I experience a slowdown of the emacs notmuch interface over time. After using emacs with notmuch for a day or two, loading the inbox tree view (a search on tag:inbox) takes a significant amount of time to build the view. When I quite and restart emacs, the view loads instantly again.

Do you have any suggestions on how to debug this issue other than removing all customizations?

Cheers,
  Sebastian

Re: Debugging slow down over time

[Dan Čermák]

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Hi Sebastian,

Sebastian Fischmeister <sfischme@uwaterloo.ca> writes:

> Hi,
>
> For some time already I experience a slowdown of the emacs notmuch interface over time. After using emacs with notmuch for a day or two, loading the inbox tree view (a search on tag:inbox) takes a significant amount of time to build the view. When I quite and restart emacs, the view loads instantly again.
>
> Do you have any suggestions on how to debug this issue other than
> removing all customizations?

Unfortunately no, but I have observed this issue as well. What sometimes
appeared to help is to manually trigger a garbage collection.

I must admit that I have not suffered from this recently though and it
might have disappeared when I added
--8<---------------cut here---------------start------------->8---
(setq helm-ff-keep-cached-candidates nil)
--8<---------------cut here---------------end--------------->8---
to my init.el to work around https://issues.guix.gnu.org/43406

In case you are using helm, you could give that a try.


Cheers,

Dan

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Re: Debugging slow down over time

[Jonas Bernoulli]

Sebastian Fischmeister <sfischme@uwaterloo.ca> writes:
> For some time already I experience a slowdown of the emacs notmuch
> interface over time.

Please check if my recent patch in
id:20201108174929.1227-1-jonas@bernoul.li fixes that.

     Cheers,
     Jonas

Re: Debugging slow down over time

[Sebastian Fischmeister]

I can confirm that after calling (garbage-collect) the search is responsive again.

Then I remembered that my init.el changes the gc-cons-threshold speed up the launch. Guess that wasn't a good idea.

  Sebastian

Dan Čermák <dan.cermak@posteo.net> writes:

> Hi Sebastian,
>
> Sebastian Fischmeister <sfischme@uwaterloo.ca> writes:
>
>> Hi,
>>
>> For some time already I experience a slowdown of the emacs notmuch interface over time. After using emacs with notmuch for a day or two, loading the inbox tree view (a search on tag:inbox) takes a significant amount of time to build the view. When I quite and restart emacs, the view loads instantly again.
>>
>> Do you have any suggestions on how to debug this issue other than
>> removing all customizations?
>
> Unfortunately no, but I have observed this issue as well. What sometimes
> appeared to help is to manually trigger a garbage collection.
>
> I must admit that I have not suffered from this recently though and it
> might have disappeared when I added
> --8<---------------cut here---------------start------------->8---
> (setq helm-ff-keep-cached-candidates nil)
> --8<---------------cut here---------------end--------------->8---
> to my init.el to work around https://issues.guix.gnu.org/43406
>
> In case you are using helm, you could give that a try.
>
>
> Cheers,
>
> Dan