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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-01-26 01:04:58 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2024-01-26 01:04:58 +0200 |
| commit | 376c216138c75e161d39767650ea30536f23b482 (patch) | |
| tree | 8d4627867ffe51427a82d1188720eef2023acb4c | |
| parent | 8ba6fdf905d0f5aef70ced4504c6ad297bfe08ea (diff) | |
| download | postgresql-376c216138c75e161d39767650ea30536f23b482.tar.gz postgresql-376c216138c75e161d39767650ea30536f23b482.zip | |
Update comment, generation mem contexts have a "keeper" block
The keeper block was introduced in commit 1b0d9aa4f7, but it forgot
to update this comment.
| -rw-r--r-- | src/backend/utils/mmgr/generation.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/utils/mmgr/generation.c b/src/backend/utils/mmgr/generation.c index 65fd00d0137..f9016a7ed72 100644 --- a/src/backend/utils/mmgr/generation.c +++ b/src/backend/utils/mmgr/generation.c @@ -271,8 +271,10 @@ GenerationContextCreate(MemoryContext parent, * GenerationReset * Frees all memory which is allocated in the given set. * - * The code simply frees all the blocks in the context - we don't keep any - * keeper blocks or anything like that. + * The initial "keeper" block (which shares a malloc chunk with the context + * header) is not given back to the operating system though. In this way, we + * don't thrash malloc() when a context is repeatedly reset after small + * allocations. */ void GenerationReset(MemoryContext context) |