[Dovecot] Quick and dirty server optimized for IMAP upload speed?

[Timo Sirainen]

On Aug 28, 2009, at 9:10 PM, Adam McDougall wrote:

>> From Dovecot's side the only thing you can do is fsync_disable=yes.  
>> The main problem is probably network latency, because Outlook  
>> doesn't support MULTIAPPEND extension (and perhaps not even LITERAL 
>> + extension?) Did you already try running Dovecot on the same  
>> computer as Outlook (some virtual thingy or maybe it works in  
>> cygwin)?
>>
> I just tried fsync_disable=yes but with NFS and had to turn off  
> mail_nfs_index = yes as well but the speed was the same.  Do you  
> think it would be different with a UFS or ZFS backend with  
> fsync_disable?

Could be. NFS clients typically wait for NFS server to reply to writes  
before continuing. I think it "async" mount option might disable that,  
but I'm not sure.