Hello,
I followed these steps in http://wiki2.dovecot.org/MailLocation/LocalDisk
# Default to no fsyncing
mail_fsync = never
protocol lda {
# Enable fsyncing for LDA
mail_fsync = optimized
}
protocol lmtp {
# Enable fsyncing for LMTP
mail_fsync = optimized
}
This gives quite a good performance, but I'm not sure about the risks. Does it
mean that things like
*put a Sent Mail to Sent folder
*change status of mails
really don't get synced to disk for a long time (hours??). Or do we talk about
seconds and everything is fine when dirty pages get synced by the system.
cat /proc/meminfo | grep 'Dirty'
lets me assume that there are always just a few KB in the dirty pages and these
are written to disk every few seconds. Are the dovecot "mail_fsync = never"
transactions inclduded there?
Thanks a lot!
Christian
