I've tested the v2, v3 and v3.1 of the patch, to see if there are any
differences. The v2 no longer applies, so I tested it on ee943004. The following
table shows the total duration of the data load, and also sizes of the two GIN
indexes.
duration (sec) subject body
---------------------------------------------------------------
v2 1290 23 MB 684 MB
v3 1360 24 MB 487 MB
v3.1 1360 24 MB 488 MB
Thank you very much.
Hmm. v3 is a just rebased version of v2, v3.1 hasn't unlock/lock cycle during
cleanup, just to become similar to Jeff's pending lock patch. In theory, v2 and
v3 should be very close, v3.1 should be close to pending_lock.
I'm inclining to push v3.1 as one of two winners by size/performance and, unlike
to pending lock patch, it doesn't change an internal logic of lock machinery.
--
Teodor Sigaev E-mail: teo...@sigaev.ru
WWW: http://www.sigaev.ru/
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