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Limit maxPrefetch [skip ci]

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This commit is contained in:
Andrew Kane
2026-10-18 04:56:42 -07:00
parent 073744b5b5
commit cb331caf1f
1 changed files with 7 additions and 2 deletions
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9
src/hnswutils.c
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@@ -899,10 +899,15 @@ HnswInitSearchState(HnswSearchState * searchState, Relation index, bool maintena
#elif defined(HNSW_USE_PREFETCH)
if (!inMemory)
{
int maxM = HnswGetLayerM(HNSW_MAX_M, 0);
int ioConcurrency;
if (maintenance)
searchState->maxPrefetch = get_tablespace_maintenance_io_concurrency(index->rd_rel->reltablespace);
ioConcurrency = get_tablespace_maintenance_io_concurrency(index->rd_rel->reltablespace);
else
searchState->maxPrefetch = get_tablespace_io_concurrency(index->rd_rel->reltablespace);
ioConcurrency = get_tablespace_io_concurrency(index->rd_rel->reltablespace);
searchState->maxPrefetch = Min(maxM, ioConcurrency);
}
#endif
}