* Apparent quadratic behavior during mail fetching
@ 2017-03-29 20:43 Florian Weimer
2019-03-18 14:34 ` Florian Weimer
0 siblings, 1 reply; 3+ messages in thread
From: Florian Weimer @ 2017-03-29 20:43 UTC (permalink / raw)
To: ding
With Debian stretch's Enmcs 25.1.1, Gnus 5.13, I see what seems to be
quadratic behavior when processing incoming mail.
My mail-sources setting in ~/.gnus looks like this:
(setq mail-sources
`((directory :path ,(expand-file-name "~/Mail/INCOMING")
:suffix "")))
I see many, many stat system calls for the files in that directory.
It looks like the entire directory is reprocessed for each file
contained in it.
I use
(setq gnus-secondary-select-methods '((nnml "")))
as the mail storage backend.
Does this ring a bell? If not, I'll try to find the root cause.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Apparent quadratic behavior during mail fetching
2017-03-29 20:43 Apparent quadratic behavior during mail fetching Florian Weimer
@ 2019-03-18 14:34 ` Florian Weimer
2019-06-22 10:44 ` Lars Ingebrigtsen
0 siblings, 1 reply; 3+ messages in thread
From: Florian Weimer @ 2019-03-18 14:34 UTC (permalink / raw)
To: ding
* Florian Weimer:
> With Debian stretch's Enmcs 25.1.1, Gnus 5.13, I see what seems to be
> quadratic behavior when processing incoming mail.
>
> My mail-sources setting in ~/.gnus looks like this:
>
> (setq mail-sources
> `((directory :path ,(expand-file-name "~/Mail/INCOMING")
> :suffix "")))
>
> I see many, many stat system calls for the files in that directory.
> It looks like the entire directory is reprocessed for each file
> contained in it.
>
> I use
>
> (setq gnus-secondary-select-methods '((nnml "")))
>
> as the mail storage backend.
>
> Does this ring a bell? If not, I'll try to find the root cause.
It turns out that this:
(setq nnmail-scan-directory-mail-source-once t)
fixes it (in Emacs 26.1 at least).
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Apparent quadratic behavior during mail fetching
2019-03-18 14:34 ` Florian Weimer
@ 2019-06-22 10:44 ` Lars Ingebrigtsen
0 siblings, 0 replies; 3+ messages in thread
From: Lars Ingebrigtsen @ 2019-06-22 10:44 UTC (permalink / raw)
To: Florian Weimer; +Cc: ding
Florian Weimer <fw@deneb.enyo.de> writes:
>> With Debian stretch's Enmcs 25.1.1, Gnus 5.13, I see what seems to be
>> quadratic behavior when processing incoming mail.
>>
>> My mail-sources setting in ~/.gnus looks like this:
>>
>> (setq mail-sources
>> `((directory :path ,(expand-file-name "~/Mail/INCOMING")
>> :suffix "")))
>>
>> I see many, many stat system calls for the files in that directory.
>> It looks like the entire directory is reprocessed for each file
>> contained in it.
[...]
> It turns out that this:
>
> (setq nnmail-scan-directory-mail-source-once t)
>
> fixes it (in Emacs 26.1 at least).
Perhaps that should be the default? I'm not familiar with that part of
the code -- what are the upsides/downsides?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-03-18 14:34 ` Florian Weimer
2019-06-22 10:44 ` Lars Ingebrigtsen
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