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(parent: f7b0006) | patch
Calculate # of semaphores correctly with --disable-spinlocks.
authorHeikki Linnakangas <[email protected]>
Thu, 4 Apr 2013 13:31:44 +0000 (16:31 +0300)
committerHeikki Linnakangas <[email protected]>
Thu, 4 Apr 2013 13:40:37 +0000 (16:40 +0300)
commitb8ed4cc9627de437e5eafdb81631a0d0f063abb3
tree06713bbc701c8875db0ffe94b34611bf9c01c117tree
parentf7b0006f42913b6d641c9f0bef6fad1f670b9194commit | diff
Calculate # of semaphores correctly with --disable-spinlocks.

The old formula didn't take into account that each WAL sender process needs
a spinlock. We had also already exceeded the fixed number of spinlocks
reserved for misc purposes (10). Bump that to 30.

Backpatch to 9.0, where WAL senders were introduced. If I counted correctly,
9.0 had exactly 10 predefined spinlocks, and 9.1 exceeded that, but bump the
limit in 9.0 too because 10 is uncomfortably close to the edge.
src/backend/storage/lmgr/spin.c diff | blob | blame | history
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