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| author | Robert Haas <rhaas@postgresql.org> | 2011-07-29 16:46:13 -0400 |
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| committer | Robert Haas <rhaas@postgresql.org> | 2011-07-29 16:46:13 -0400 |
| commit | b4fbe392f8ff6ff1a66b488eb7197eef9e1770a4 (patch) | |
| tree | 1448cf266fe5d20ace8609de75e222b49fde4567 /src/tutorial/funcs.c | |
| parent | 60fb25a3f56bd78e961cc7263e5ae11e1eceeb5e (diff) | |
| download | postgresql-b4fbe392f8ff6ff1a66b488eb7197eef9e1770a4.tar.gz postgresql-b4fbe392f8ff6ff1a66b488eb7197eef9e1770a4.zip | |
Reduce sinval synchronization overhead.
Testing shows that the overhead of acquiring and releasing
SInvalReadLock and msgNumLock on high-core count boxes can waste a lot
of CPU time and hurt performance. This patch adds a per-backend flag
that allows us to skip all that locking in most cases. Further
testing shows that this improves performance even when sinval traffic
is very high.
Patch by me. Review and testing by Noah Misch.
Diffstat (limited to 'src/tutorial/funcs.c')
0 files changed, 0 insertions, 0 deletions