projects / users / heikki / postgres.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 1dd9b09) | patch
Force the size and alignment of LWLock array entries to be either 16 or 32
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 16 Sep 2005 00:30:05 +0000 (00:30 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 16 Sep 2005 00:30:05 +0000 (00:30 +0000)
commitdc06734a7272ab1a3be3f6b86921b0a35008526a
treecfbf3b5158a78c3effe2a48be57b1835a412eba2tree
parent1dd9b093322e08ebb82134d953dec0d2e4c04b1acommit | diff
Force the size and alignment of LWLock array entries to be either 16 or 32
bytes.  This shouldn't make any difference on x86 machines, where the size
happened to be 16 bytes anyway, but on 64-bit machines and machines with
slock_t int or wider, it will speed array indexing and hopefully reduce
SMP cache contention effects.  Per recent experimentation.
src/backend/storage/lmgr/lwlock.c diff | blob | blame | history
Heikki's random PostgreSQL patches