Leaving gnus is slow

Leaving gnus is slow

[Andreas J. Koenig]

Leaving gnus takes between 5 and 10 minutes on a fast and otherwise
sane and well behaving machine. Other gnus operations are as fast as
they have always been. The slowdown became noticable a few months ago,
then became annoying a few weeks ago. strace shows the same pattern
several 10000 times:

  gettimeofday({1132127555, 814214}, NULL) = 0
  gettimeofday({1132127555, 814633}, NULL) = 0
  setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
  sigreturn()                             = ? (mask now [])
  --- SIGALRM (Alarm clock) @ 0 (0) ---
  gettimeofday({1132127555, 824205}, NULL) = 0
  gettimeofday({1132127555, 824611}, NULL) = 0
  setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
  sigreturn()                             = ? (mask now [])
  --- SIGALRM (Alarm clock) @ 0 (0) ---
  gettimeofday({1132127555, 834211}, NULL) = 0
  gettimeofday({1132127555, 834616}, NULL) = 0
  setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
  sigreturn()                             = ? (mask now [])
  --- SIGALRM (Alarm clock) @ 0 (0) ---

My ~/.gnus.registry.eld file looks a bit largish to me:

-rw-rw-r-- 1 k k 18651823 Nov 16 08:59 /home/k/.gnus.registry.eld

My largest overview files are:

-rw------- 1 k k 4366389 Nov 16 08:14 /home/k/Mail/subversion/.overview
-rw------- 1 k k 4879095 Aug 31 04:41 /home/k/Mail/svg-developers/.overview
-rw------- 1 k k 7715045 Nov 16 08:07 /home/k/Mail/junk/.overview
-rw------- 1 k k 9153921 Nov 16 09:03 /home/k/Mail/pause/.overview

Any suggestions where to have further looks and how to pull this
straight again?

I'm running current CVS.

Thanks,
-- 
andreas

Re: Leaving gnus is slow

[Adam Sjøgren]

On Wed, 16 Nov 2005 09:28:57 +0100, Andreas wrote:

> My ~/.gnus.registry.eld file looks a bit largish to me:

> -rw-rw-r-- 1 k k 18651823 Nov 16 08:59 /home/k/.gnus.registry.eld

You may want to try and make this smaller - a while after I started
using the Gnus registry (for spam.el) I noticed a considerable
slowdown due to the size of that file.

The "cure" is perhaps something like this:

 (setq gnus-registry-max-entries 5000)

(my registry-file is now around 600-700 KB and quitting is quite speedy).


(I don't know about the overview-files.)


  Best regards,

-- 
 "I always imagined that Cthulu would wear a tie.             Adam Sjøgren
  Instead he seems quite sporty."                        asjo@koldfront.dk

Re: Leaving gnus is slow

[Andreas J. Koenig]

>>>>> On Wed, 16 Nov 2005 11:47:18 +0100, asjo@koldfront.dk (Adam Sjøgren) said:

  > The "cure" is perhaps something like this:

  >  (setq gnus-registry-max-entries 5000)

Thank you! This did the trick; very, very nice.

-- 
andreas

Re: Leaving gnus is slow

[Simon Josefsson]

andreas.koenig.gmwojprw@franz.ak.mind.de (Andreas J. Koenig) writes:

> Leaving gnus takes between 5 and 10 minutes on a fast and otherwise
> sane and well behaving machine. Other gnus operations are as fast as
> they have always been. The slowdown became noticable a few months ago,
> then became annoying a few weeks ago. strace shows the same pattern
> several 10000 times:

What does profiling using elp indicate?

>   gettimeofday({1132127555, 814214}, NULL) = 0
>   gettimeofday({1132127555, 814633}, NULL) = 0
>   setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
>   sigreturn()                             = ? (mask now [])
>   --- SIGALRM (Alarm clock) @ 0 (0) ---
>   gettimeofday({1132127555, 824205}, NULL) = 0
>   gettimeofday({1132127555, 824611}, NULL) = 0
>   setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
>   sigreturn()                             = ? (mask now [])
>   --- SIGALRM (Alarm clock) @ 0 (0) ---
>   gettimeofday({1132127555, 834211}, NULL) = 0
>   gettimeofday({1132127555, 834616}, NULL) = 0
>   setitimer(ITIMER_REAL, {it_interval={0, 0}, it_value={0, 1000}}, NULL) = 0
>   sigreturn()                             = ? (mask now [])
>   --- SIGALRM (Alarm clock) @ 0 (0) ---
>
> My ~/.gnus.registry.eld file looks a bit largish to me:
>
> -rw-rw-r-- 1 k k 18651823 Nov 16 08:59 /home/k/.gnus.registry.eld
>
> My largest overview files are:
>
> -rw------- 1 k k 4366389 Nov 16 08:14 /home/k/Mail/subversion/.overview
> -rw------- 1 k k 4879095 Aug 31 04:41 /home/k/Mail/svg-developers/.overview
> -rw------- 1 k k 7715045 Nov 16 08:07 /home/k/Mail/junk/.overview
> -rw------- 1 k k 9153921 Nov 16 09:03 /home/k/Mail/pause/.overview
>
> Any suggestions where to have further looks and how to pull this
> straight again?

Based on your strace output, it doesn't seem like it is writing any
files.  It is probably computing or waiting for something.

FWIW, quitting Gnus is fast here.  Which I notice every time I
accidentally do it...