There was some previous discussion of the speed of "mu index"
here: https://groups.google.com/forum/#!msg/mu-discuss/-K5O1uoP7bQ/n49EreaQtlAJ
I'm now on an SSD (MacBook Pro w/ 1 TB SSD primary and the 1TB platter now
in the CD-rom bay). I really REALLY like mu4e, but it is unusably slow on
OS X and I don't think I can keep using it in the current state. I'm happy
to try to help debug this, and hope it gets solved so I can make this my
primary mail client. If I try to run mu outside of emacs so that the
slowness isn't directly affecting a program I'm actively using, I get the
locking errors since mu4e is also running. If I run it in emacs with (setq
mu4e-update-interval 300), then when I try to do something during the time
that mu is indexing, everything gets messed up, and mu4e does not seem to
recover gracefully (i.e. maildirs don't properly open, or searches return
nothing, until I kill and restart mu).
Based on the earlier thread where Dirk posted his timings, it seems to be
an OS X issue? I'm using an SSD, have 8 GB of RAM, and an old CPU (2.26
GHz).
Perhaps it is not a mu-specific problem, since it takes 2 seconds just to
list the maildir folder. This is after repeat runs, so I am taking
advantage of caches:
$ time ls -R1 ~/Maildir > /dev/null
real 0m1.744s
user 0m1.118s
sys 0m0.080s
$ ls -R1 Maildir/|wc -l
106086
Although mu index only searches 60k files, since 40k have a ".noupdate"
And after repeated runs of mu index with no new mail:
$ time mu index
indexing messages under /Users/mankoff/Maildir [/Users/mankoff/.mu/xapian]
| processing mail; processed: 61575; updated/new: 0, cleaned-up: 0
cleaning up messages [/Users/mankoff/.mu/xapian]
- processing mail; processed: 61609; updated/new: 0, cleaned-up: 0
elapsed: 1 second(s), ~ 61609 msg/s
\ processing mail; processed: 61609; updated/new: 0, cleaned-up: 0
elapsed: 6 second(s), ~ 10268 msg/s
real 0m5.621s
user 0m0.966s
sys 0m2.384s
$ mu --version
mu (mail indexer/searcher) version 0.9.9.5
and xapian 1.2.17.
Searching is also much slower than Dirk's earlier report, although I don't
mind waiting a few seconds for a search:
$ time mu find hello |wc -l
2555
real 0m1.031s
user 0m0.165s
sys 0m0.287s
Please help (if possible). If not I'll be forced to go back to alpine,
which is great, except it doesn't search well, and doesn't integrate with
Org...
-k.
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