Tickets :: Comment on [#12705] Rate limit polling for new mail notifications

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Comment	>> In my IMAP account, I have a fair number of folders that need to be >> polled for new messages (about 25) as I use Sieve to sort messages >> upon arrival. This means checking for new messages is a relatively >> expensive operation. > > What does Sieve have to do with this? Sieve is independent of polling. > >> When 'Display notification when new mail arrives?' in the Mail >> preferences is selected, it looks like this check is performed for >> each POST request. This means that if multiple POST requests are send >> more or less simultaneously, this check is run many times in >> parallel. For instance, if in a month view of Kronolith I move to the >> next month, 13 POST requests are fired off within a few milliseconds >> (in my agenda there are six calenders, five address books, one >> tasklist and one holidays). Each of these will run >> >> horde/services/ajax.php/kronolith/listEvents > > That shouldn't happen. For a task such as this in kronolith, we > should really be pooling all of these into a single request. But > that's a separate enhancement ticket... > >> All in all this takes approximately 10 seconds, during which time the >> check for new messages runs 13 times (pretty much in parallel). If I >> disable the new mail notifications, the same action takes less than 2 >> seconds (I made sure these aren't cached results). >> >> It would be nice if there was a preference that would allow to >> prevent polling for new messages if less than 'X' seconds have passed >> since the last poll was started. This would prevent running polls in >> parallel, fighting for attention from Dovecot and which in the end is >> just a waste of resources. > > We should probably just use the "refresh" interval that currently exists. > > This seems a reasonable feature to put into 6.2.
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