Hi to all,

I can confirm that if I downgrade to 1.0.5 version I have no more the slowness problem. Then I think it is a bug introduced in th 1.1.x releases. Stefano.

----- Original Message ----- From: "Stefano Scalise" s.scalise@tno.it To: "Stefano Scalise" s.scalise@tno.it; "Timo Sirainen" tss@iki.fi Cc: dovecot@dovecot.org Sent: Tuesday, October 02, 2007 12:04 PM Subject: Re: [Dovecot] Moving email from a folder to another using IMAP isvery slow (sometimes)

Hi to all,

very strange! I tried to debug why imap process takes 100% CPu and it is very slow when I move an email from an imap folder to another imap folder and then I typed:

strace -tt -o /log-imap.txt -p <process number>

well, during the trace the imap process doesn't crash and it is very fast. If I stop the tracing, I have again the problem and sometimes the crash of the process.

Any help? Thank you, Stefano.

----- Original Message ----- From: "Stefano Scalise" s.scalise@tno.it To: "Timo Sirainen" tss@iki.fi Cc: dovecot@dovecot.org Sent: Monday, October 01, 2007 4:21 PM Subject: Re: [Dovecot] Moving email from a folder to another using IMAP isvery slow (sometimes)

...

Sorry, but with the new version (1.1.beta2), I still have the same problem of very slowness during moving email between two imap folders. What can I do for debugging it? Stefano.

----- Original Message ----- From: "Timo Sirainen" tss@iki.fi To: "Stefano Scalise" s.scalise@tno.it Cc: dovecot@dovecot.org Sent: Sunday, September 30, 2007 1:52 PM Subject: Re: [Dovecot] Moving email from a folder to another using IMAP isvery slow (sometimes)

On Wed, 2007-09-26 at 12:05 +0200, Stefano Scalise wrote:

...

Update to the problem:

I tried to stress the server with many moving and I received:

Sep 26 10:56:40 sirio3 dovecot: IMAP(): Trying to allocate 0 bytes

This should fix it: http://hg.dovecot.org/dovecot/rev/c6b85cf1e63a

I'll probably make a beta2 release today after fixing several other things.