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| author | Andres Freund <andres@anarazel.de> | 2025-11-06 16:43:16 -0500 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2025-11-06 16:43:16 -0500 |
| commit | 5310fac6e0fcb1c7fcefb3446767673f9107328c (patch) | |
| tree | 9089e0978fc799eeda96df4427423de28664b210 /src/test/modules/test_regex/test_regex.control | |
| parent | c75ebc657ffce8dab76471da31aafb79fbe3fda2 (diff) | |
bufmgr: Use atomic sub for unpinning buffersHEADorigin/masterorigin/HEADmaster
The prior commit made it legal to modify BufferDesc.state while the buffer
header spinlock is held. This allows us to replace the CAS loop
inUnpinBufferNoOwner() with an atomic sub. This improves scalability
significantly. See the prior commits for more background.
Reviewed-by: Matthias van de Meent <boekewurm+postgres@gmail.com>
Discussion: https://postgr.es/m/fvfmkr5kk4nyex56ejgxj3uzi63isfxovp2biecb4bspbjrze7@az2pljabhnff
Diffstat (limited to 'src/test/modules/test_regex/test_regex.control')
0 files changed, 0 insertions, 0 deletions