David Bremner <da...@tethera.net> writes: > Austin Clements <amdra...@mit.edu> writes: > >> This can substantially reduce the cost of notmuch new in some >> situations, such as when the file system cache is cold or when the >> Maildir is on NFS. > > On my desktop at home (a core i7 950) with spinning rust disks (and lvm > on luks) this patch yields about a 7% slowdown in the intial new perf > test > > from > > Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B) > Initial notmuch new 579.60 348.86 14.26 217188 5330266/3501272 > > to > > Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B) > Initial notmuch new 620.51 368.62 15.48 217156 5330354/3416456 > > On an SSD I don't detect a significant different (<0.5% speedup)
Seems like a false alarm. Averaging over 10 repetitions, the patched version is about 1% faster. Unfortunately it points out that our performance test suite should really do more than one repetition for each test.
#!/bin/bash
test_description='notmuch new'
. ./perf-test-lib.sh
time_start
for i in $(seq 1 10); do
rm -rf ${MAIL_DIR}/.notmuch
sudo /home/bremner/config/scripts/drop-caches
time_run "notmuch new #$i" 'notmuch new'
done
time_done
drop-caches
Description: Binary data
_______________________________________________ notmuch mailing list notmuch@notmuchmail.org http://notmuchmail.org/mailman/listinfo/notmuch
