Matthew Schauer <matthew.schauer@e10x.net> writes: > Greetings, > > I've been trying to migrate about 25K e-mails to Notmuch, and I'm seeing > some frustrating performance characteristics that don't seem to match > with the experience others report. 25,000 messages should really not be a strain, spinning rust or no. > I'm dumping messages from > Thunderbird in batches and then running `notmuch new` to add each batch > to the database. The indexing performance remains okay, at more than > 200 per second, but after Notmuch has reported it's finished indexing, > it hangs for as much as several minutes before exiting. A stack trace > confirms that this is Xapian committing the database, with most of the > time seemingly spent in `fdatasync`. The time spent grows with the size > of the database, not the number of e-mails being imported, which means > this will remain a problem during day-to-day usage. It would be interesting if you could report the results of running the notmuch performance test suite (under performance-test/ in the source). The other thing I'm curious about is the actual size of the database. This varies a lot, but in the past pathological performance has sometimes been linked to indexing things that should not be, bloating the database. d _______________________________________________ notmuch mailing list notmuch@notmuchmail.org https://notmuchmail.org/mailman/listinfo/notmuch