Re: Cyrus 2.4.13 memory use

2012-02-09 Thread David Carter
On Wed, 8 Feb 2012, David Carter wrote: One small curiosity is that the memory use per IMAP session seems to have increased dramatically. I'm looking at the output of the Linux free command after buffer cache has been subtracted: 2.3.14: 2572296 KBytes with 2909 IMAP sessions: 884

Cyrus 2.4.13 memory use

2012-02-08 Thread David Carter
We are currently in the process of migrating from 2.3.14 (with lots of local patches) to a fairly vanilla 2.4.13. One small curiosity is that the memory use per IMAP session seems to have increased dramatically. I'm looking at the output of the Linux free command after buffer cache has been

Re: Cyrus 2.4.13 memory use

2012-02-08 Thread Wolfgang Breyha
David Carter wrote, on 08.02.2012 17:19: It looks like 3000 IMAP sessions are going to take around 8 GBytes of RAM just to run, and we will need to buy additional RAM for buffer cache. This isn't the end of the world: memory is cheap. I'm just curious if anyone else saw a similar increase

Re: Cyrus 2.4.13 memory use

2012-02-08 Thread Bron Gondwana
On Wed, Feb 08, 2012 at 04:19:42PM +, David Carter wrote: We are currently in the process of migrating from 2.3.14 (with lots of local patches) to a fairly vanilla 2.4.13. One small curiosity is that the memory use per IMAP session seems to have increased dramatically. I'm looking at the

Re: Cyrus 2.4.13 memory use

2012-02-08 Thread Robert Mueller
It looks like 3000 IMAP sessions are going to take around 8 GBytes of RAM just to run, and we will need to buy additional RAM for buffer cache. This isn't the end of the world: memory is cheap. I'm just curious if anyone else saw a similar increase when upgrading from 2.3 to 2.4. I

Re: Cyrus 2.4.13 memory use

2012-02-08 Thread Lucas Zinato Carraro
How to estimate the memory usage in cyrus imap 2.4.X ? Mailbox size is Important ? For example 5000 simultaneous IMAPS in  mailboxes  with 2Gb size. How much memory is needed? On Wed, Feb 8, 2012 at 10:02 PM, Robert Mueller r...@fastmail.fm wrote: It looks like 3000 IMAP sessions are