Re: [Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

2013-01-17 Thread Robert Schetterer
Am 17.01.2013 08:30, schrieb Frank Elsner: > On Wed, 16 Jan 2013 23:47:33 + Alexandr Sabitov wrote: >> Hi All, >> >> I have compared Dovecot performance to Courier and it appears that as a POP3 >> server Dovecot is slower in 2 times but as an IMAP server it is faster in >> 1.5 times. The same

Re: [Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

2013-01-16 Thread Frank Elsner
On Wed, 16 Jan 2013 23:47:33 + Alexandr Sabitov wrote: > Hi All, > > I have compared Dovecot performance to Courier and it appears that as a POP3 > server Dovecot is slower in 2 times but as an IMAP server it is faster in 1.5 > times. The same node (16CPUs), testing time is 30 min, please se

Re: [Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

2013-01-16 Thread Timo Sirainen
On 17.1.2013, at 6.23, Timo Sirainen wrote: > On 17.1.2013, at 1.47, Alexandr Sabitov > wrote: > >> I do not see anything else to tweak in Dovecot to increase POP3 performance. >> Can we all have some tips to improve it please ? Oh, and because of Dovecot index files it has to do a bit more

Re: [Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

2013-01-16 Thread Timo Sirainen
On 17.1.2013, at 1.47, Alexandr Sabitov wrote: > I do not see anything else to tweak in Dovecot to increase POP3 performance. > Can we all have some tips to improve it please ? > > mail_fsync = always Courier POP3 does no fsyncing. Although I'm not sure how much difference it makes with NFS.

[Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

2013-01-16 Thread Alexandr Sabitov
Hi All, I have compared Dovecot performance to Courier and it appears that as a POP3 server Dovecot is slower in 2 times but as an IMAP server it is faster in 1.5 times. The same node (16CPUs), testing time is 30 min, please see results and dovecot configs attached. Benchmark software is MStone