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| author | Jan Wieck <JanWieck@Yahoo.com> | 2004-01-15 16:14:26 +0000 |
|---|---|---|
| committer | Jan Wieck <JanWieck@Yahoo.com> | 2004-01-15 16:14:26 +0000 |
| commit | dfdd59e91807ddf8dd32885be42a7f3af5a71c64 (patch) | |
| tree | 0a00e2790e1f5f91487a1f523e03d0c6a741dc88 /src/backend/storage/buffer/buf_init.c | |
| parent | cfd7fb7ed4b66da97f88338d991843fa7e2fe59d (diff) | |
| download | postgresql-dfdd59e91807ddf8dd32885be42a7f3af5a71c64.tar.gz postgresql-dfdd59e91807ddf8dd32885be42a7f3af5a71c64.zip | |
Adjusted calculation of shared memory requirements to new
ARC buffer replacement strategy.
Jan
Diffstat (limited to 'src/backend/storage/buffer/buf_init.c')
| -rw-r--r-- | src/backend/storage/buffer/buf_init.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/backend/storage/buffer/buf_init.c b/src/backend/storage/buffer/buf_init.c index 1a707568b55..2f3c818c191 100644 --- a/src/backend/storage/buffer/buf_init.c +++ b/src/backend/storage/buffer/buf_init.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/buffer/buf_init.c,v 1.60 2003/12/20 17:31:21 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/storage/buffer/buf_init.c,v 1.61 2004/01/15 16:14:26 wieck Exp $ * *------------------------------------------------------------------------- */ @@ -231,13 +231,19 @@ BufferShmemSize(void) size += hash_estimate_size(SHMEM_INDEX_SIZE, sizeof(ShmemIndexEnt)); /* size of buffer descriptors */ - size += MAXALIGN((NBuffers + 1) * sizeof(BufferDesc)); + size += MAXALIGN(NBuffers * sizeof(BufferDesc)); + + /* size of the shared replacement strategy control block */ + size += MAXALIGN(sizeof(BufferStrategyControl)); + + /* size of the ARC directory blocks */ + size += MAXALIGN(NBuffers * 2 * sizeof(BufferStrategyCDB)); /* size of data pages */ size += NBuffers * MAXALIGN(BLCKSZ); /* size of buffer hash table */ - size += hash_estimate_size(NBuffers, sizeof(BufferLookupEnt)); + size += hash_estimate_size(NBuffers * 2, sizeof(BufferLookupEnt)); return size; } |