El 13/01/11 17:01, David Woodhouse escribió:
On Wed, 2011-01-12 at 09:53 -0800, Marc Perkel wrote:
I just replaced my drives for Dovecot using Maildir format with a pair of Solid State Drives (SSD) in a raid 0 configuration. It's really really fast. Kind of expensive but it's like getting 20x the speed for 20x the price. I think the big gain is in the 0 seek time. You may find ramfs is even faster :) ramfs (tmpfs in linux-land) is useful for indexes. If you lose the indexes, they will created automatically the next time a user logs in.
We are now trying zlib plugin to lower the number of iops to our maildir storage systems. We are using gzip (bzip2 increases a lot the latency). LZMA/xz seems interesting (high compression and rather good decompression speed) and lzo also seems interesting (blazing fast compression AND decompression, not much compression savings though)
What kind of "tricks" do you use to lower the number of IOPs of your dovecot servers?
Regards
JavierI hope you have backups.