> On a very busy Imap server , duplicate suppression sometimes becomes the > bottleneck > I have seen that If I disable duplicate suppression , my lmtp deliveries > are speeded up. > > Duplicate suppression is important , but the database need not persist > for very long. > I have seen in most of the cases if there is a duplicate mail ( due to > forwards , groups etc ), it arrives within 10 minutes of the first mail > ( Any exception to this is too minor and can be ignored ) > > > IMHO There should be a configuration that the deliverdb can be, > optionally, stored in memcached or directly in memory. > Of course there are cons .. like loss of data on restart etc. But these > are OK. I think storing it in tmpfs would be what you want. The init script could then save a permanent copy on shutdown and put it in place on startup. That way you won't loose anything on normal restart procedure. Simon ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
