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Use popcount32 to calculate number of used pages

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This commit is contained in:
Konstantin Knizhnik
2023-10-09 22:07:10 +03:00
parent 2324e5a3d3
commit bc3a5d571f
1 changed files with 2 additions and 2 deletions
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4
pgxn/neon/file_cache.c
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@@ -744,8 +744,8 @@ local_cache_pages(PG_FUNCTION_ARGS)
hash_seq_init(&status, lfc_hash);
while ((entry = hash_seq_search(&status)) != NULL)
{
for (int i = 0; i < BLOCKS_PER_CHUNK; i++)
n_pages += (entry->bitmap[i >> 5] & (1 << (i & 31))) != 0;
for (int i = 0; i < BLOCKS_PER_CHUNK/32; i++)
n_pages += pg_popcount32(entry->bitmap[i]);
}
}
fctx->record = (LocalCachePagesRec *)