[Dovecot] SSD drives are really fast running Dovecot

[Javier de Miguel Rodríguez]

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

     Javier




> I hope you have backups.
>