[Tickets #13747] Re: Speed up ActiveSync synchronisation handling

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Ticket URL: https://bugs.horde.org/ticket/13747
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  Ticket             | 13747
  Updated By         | Michael Rubinsky <mrubinsk at horde.org>
  Summary            | Speed up ActiveSync synchronisation handling
  Queue              | Synchronization
  Version            | Git master
  Type               | Enhancement
  State              | Resolved
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             | Michael Rubinsky
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Michael Rubinsky <mrubinsk at horde.org> (2014-12-11 14:14) wrote:

> Is there just no optimization possibility than upgrading the CPU  
> power? Could there be using some caching?

Horde_Imap_Client already implements it's own cache. Be sure that you  
have this enabled and set to an appropriate value for your needs (see  
imp/config/backends[.local].php

Otherwise, you should investigate a FTS engine/plugin for Dovecot. I'm  
not sure offhand which one would index header data, as opposed to  
message body data, but I'm pretty sure at least one of them does.

Creating some sort of local Mailbox/Message-ID/UID cache for this  
purpose would be difficult for reasons similar to why the  
History/Maillog system doesn't already cache the data.