dovecot - Sep 2010 - Need more info on new fsync switch

Hello,
I wanted to improve performance by disabling fsync where I can, but the
example in the Wiki is outdated
http://wiki2.dovecot.org/MailLocation/LocalDisk

# Enable for IMAP/POP3
fsync_disable = yes

protocol lda {
  # Disable for LDA/LMTP
  fsync_disable = no
}


Can that simply be replaced by the default config which is
mail_fsync = optimized

Or should it be replaced by

# Enable for IMAP/POP3
mail_fsync = never

protocol lda {
  # Disable for LDA/LMTP
  mail_fsync = optimized
}


Cheers,

Olivier

On Mon, 2010-09-27 at 17:30 +0100, interfaSys s?rl
wrote:
> Hello,
> I wanted to improve performance by disabling fsync where I can, but the
> example in the Wiki is outdated
> http://wiki2.dovecot.org/MailLocation/LocalDisk
Updated.

Thank you very much Timo.

On 27/09/2010 18:00, Timo Sirainen wrote:
> On Mon, 2010-09-27 at 17:30 +0100, interfaSys s?rl wrote:
>> Hello,
>> I wanted to improve performance by disabling fsync where I can, but the
>> example in the Wiki is outdated
>> http://wiki2.dovecot.org/MailLocation/LocalDisk
> 
> Updated.
>