On Wed, Jul 15, 2015 at 10:51:32PM +0200, Heinz Diehl wrote: > On 15.07.2015, Ian Zimmerman wrote: > > > > I'm using both IMAP and maildir, and hcache is a real and quite > > > noticeable improvement. > > > FWIW, I use maildir too but locally, and turning hcache on did not > > result in a clear speed up. My largest folders are around 5000 messages > > each. > > I have mailboxes from ~1000 up to 20.000 emails and the hcache speedup > is clearly noticeable with all of them. I just deleted the cache file > and compared the speed of the first mailbox read to the cached > one. It's a huge improvement.
Did you time the load with header caching disabled as well? I've found that opening an uncached folder, or a folder where the cache is very out of date, sometimes can take a bit longer (while the cache is being built, presumably), but loading it again tends to be faster. w
