Tickets :: Comment on [#6556] Large IMSP books/groups slow every page request

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Comment	> The IMSP backend is still really slow with large address books. One > of the major problems is that populating the "Add to a Contact list" > menu takes a long time as it does a FETCHADDRESS for every email > returned by SEARCHADDRESS (every email not in another group already > that is), in order to construct the list of members. > > > > I don't believe the list of members is even used in this context, but > I could not figure out a good way to not compute the members > > > > The email string returned by SEARCHADDRESS contains the full names > needed to construct the member list (form: "name <email@domain>"). I > therefore propose trying to parse the names from this string first, > then falling back on an additional IMSP call for entries where a name > is not provided. > > > > Included is a patch against the newest cvs code for lib/Driver/imsp.php. > > > > I've been running this for a few days, it doesn't solve all the > performance issues, but it does tie page load times to the size of > the address book being loaded. Before, loading the webmail address > book would still take a long time (minutes), because the "Add to" > list still had to be very slowly generated. > > > > Please verify that my regex is correct for grabbing names and emails: > "/(?:^(.)\W<)?(\w[-._\w]\w@\w[-._\w]*\w\.\w{2,3})/"
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