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(parent: 694b4ab) | patch
Optimize shared memory usage for WaitLSNProcInfo
authorAlexander Korotkov <[email protected]>
Tue, 18 Nov 2025 07:50:12 +0000 (09:50 +0200)
committerAlexander Korotkov <[email protected]>
Tue, 18 Nov 2025 07:50:12 +0000 (09:50 +0200)
commit75e82b2f5a6f5de6b42dbd9ea73be5ff36a931b1
tree5afe5c07b0e2872574b8ae0bf30b63ce989ab409tree
parent694b4ab33b24dfe1f9cc00fbbd5326f0feadee4acommit | diff
Optimize shared memory usage for WaitLSNProcInfo

We need separate pairing heaps for different WaitLSNType's, because there
might be waiters for different LSN's at the same time.  However, one process
can wait only for one type of LSN at a time.  So, no need for inHeap
and heapNode fields to be arrays.

Discussion: https://postgr.es/m/CAPpHfdsBR-7sDtXFJ1qpJtKiohfGoj%3DvqzKVjWxtWsWidx7G_A%40mail.gmail.com
Author: Alexander Korotkov <[email protected]>
Reviewed-by: Xuneng Zhou <[email protected]>
src/backend/access/transam/xlogwait.c diff | blob | blame | history
src/include/access/xlogwait.h diff | blob | blame | history
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