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When LWLOCK_STATS is defined, count spindelays.

author Robert Haas <rhaas@postgresql.org>

2012年6月26日 20:02:55 +0000 (16:02 -0400)

committer Robert Haas <rhaas@postgresql.org>

2012年6月26日 20:06:07 +0000 (16:06 -0400)

commit b79ab00144e64217d418fde884bca8ea58fbd4a4

tree 08716714a8f4f7f1dff7fce69463118759a80f3f tree

parent 757773602c424b1e51c2d9cad8a59398ba7f7b2c commit | diff

When LWLOCK_STATS is defined, count spindelays.

When LWLOCK_STATS is *not* defined, the only change is that
SpinLockAcquire now returns the number of delays.

Patch by me, review by Jeff Janes.

src/backend/storage/lmgr/lwlock.c diff | blob | blame | history

src/backend/storage/lmgr/s_lock.c diff | blob | blame | history

src/include/storage/s_lock.h diff | blob | blame | history

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