Tickets :: Comment on [#13747] Speed up ActiveSync synchronisation handling

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Comment	> Hi Michael, > I've done some debugging.. > > Your question first: > - we are using DOVECOT, yes. (so MODSEQ should work.., HIGHMODSEQ > is showing up on manual selecting IMAP folders over a telnet session) > - my client is OL2013 > - we use apache as our server with a mysql backend (no special > configuration, just default settings) > > I have uploaded a zipped cachegrind file: > https://www.dropbox.com/s/c0zixz004o27ajd/mark_1_message_as_read.tgz?dl=0 > > I am showing just 1 thing in this debugging file: Mark 1 message as > read in OL2013. It produces a tremendous delay of about 119seconds > where the CPU is spiking at 100%. > > Where could I investigate further, or have you any speedup > optimizations I could test?
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