I hadn't noticed any interactive slowdown, but when I got around to
running the notmuch performance suite, there seems to be some noticable
slowdown with the glass backend (default in Xapian 1.3.5) compared to
chert (using xapian 1.2.22)
These tests are on an older i7 with 12G of RAM and an SSD. I'm
reasonable confident they are CPU bound. One curious thing is the
increase in system time in the glass case. It also looks like the glass
backend is doing a lot more I/O, which could be related.
The current notmuch performance corpus has about 200k documents,
totalling about 3.5G. Unfortunately each number here represents only a
single run. I did rerun the tests with the glass backend, and the
variation was reasonably small.
Chert
=====
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 669.06 639.78 21.42 323684 3576/9360440
notmuch new #2 0.46 0.00 0.00 8240 3568/200
notmuch new #3 0.01 0.00 0.00 7916 0/8
notmuch new #4 0.01 0.01 0.00 8008 0/8
notmuch new #5 0.01 0.00 0.00 8040 0/8
notmuch new #6 0.01 0.00 0.00 8040 0/8
T01-dump-restore.sh: Testing dump and restore [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
load nmbug tags 5.85 2.64 0.10 11280 1376/40496
dump * 7.45 6.51 0.94 25272 104/27928
restore * 7.55 7.15 0.39 8180 0/0
T02-tag.sh: Testing tagging [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
tag * +new_tag 200.13 183.01 7.08 38628 264/1664552
tag * +existing_tag 0.00 0.00 0.00 8356 0/0
tag * -existing_tag 153.47 145.00 4.02 34928 0/1626320
tag * -missing_tag 0.00 0.00 0.00 8252 0/0
Glass
=====
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 949.53 697.05 206.98 277436 1290744/21767856
notmuch new #2 2.12 0.01 0.02 8204 2552/160
notmuch new #3 0.01 0.00 0.00 8216 0/8
notmuch new #4 0.01 0.00 0.00 8192 0/8
notmuch new #5 0.01 0.00 0.00 8216 0/8
notmuch new #6 0.01 0.00 0.00 8144 0/8
T01-dump-restore.sh: Testing dump and restore [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
load nmbug tags 10.78 4.06 3.59 11376 600/39832
dump * 7.44 6.52 0.91 25296 0/27928
restore * 7.74 7.24 0.48 8740 0/0
T02-tag.sh: Testing tagging [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
tag * +new_tag 481.78 278.80 196.89 39448 0/1897360
tag * +existing_tag 0.00 0.00 0.00 8496 0/0
tag * -existing_tag 449.58 242.65 202.74 35456 0/2073520
tag * -missing_tag 0.00 0.00 0.00 8440 0/0
_______________________________________________
notmuch mailing list
[email protected]
https://notmuchmail.org/mailman/listinfo/notmuch
