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| author | Alexander Korotkov <akorotkov@postgresql.org> | 2024-07-04 02:05:37 +0300 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2024-07-04 02:05:37 +0300 |
| commit | 6897f0ec024582a570868939d3f34a6853374723 (patch) | |
| tree | 8c9d63f70635cc43061f7b3e4ab8dcad9ee48ec2 /src/backend/parser/parse_expr.c | |
| parent | 6c1af5482e6943a5f29b7f4ca773c720ec8202b0 (diff) | |
| download | postgresql-6897f0ec024582a570868939d3f34a6853374723.tar.gz postgresql-6897f0ec024582a570868939d3f34a6853374723.zip | |
Optimize memory access in GetRunningTransactionData()
e85662df44 made GetRunningTransactionData() calculate the oldest running
transaction id within the current database. This commit optimized this
calculation by performing a cheap transaction id comparison before fetching
the process database id, while the latter could cause extra cache misses.
Reported-by: Noah Misch
Discussion: https://postgr.es/m/20240630231816.bf.nmisch%40google.com
Diffstat (limited to 'src/backend/parser/parse_expr.c')
0 files changed, 0 insertions, 0 deletions