[Dovecot] Outlook (2010) -> Dovecot (IMAP) >10x slower with high network load and many folders

[Willie Gillespie]

On 4/6/2012 3:52 AM, Thomas von Eyben wrote:
> Test results:
> CLIENT-1 is having the problems when CLIENT-2 is using all the
> (100Mbps) bandwidth eg. copying files to MAIL-SRV.
> If I move CLIENT-1 to CLIENT-3 then almost all the delay is gone.
> NB.: I have not (yet) tested if the problem also exists when CLIENT-2
> generates traffic to MAIL-SRV as opposed to OTHER-SRV (but I am
> expecting the same problems).

So the link between your 100 Mbps switch and the 1 Gbps switch is 
saturated by CLIENT-2, so CLIENT-1 is just getting the leftovers?

Since CLIENT-3 doesn't go through that 100 Mbps switch, it obviously 
doesn't see that issue.