diff options
| author | Peter Eisentraut | 2024-08-28 05:26:48 +0000 |
|---|---|---|
| committer | Peter Eisentraut | 2024-08-28 05:28:27 +0000 |
| commit | 6654bb92047b37cee053cedd6fa1829841b2ad8e (patch) | |
| tree | ae3b84ab5a8e4581ac6f15b9afe68641ec554bee /src/backend/commands/variable.c | |
| parent | 2e6a8047f0c94b4ac1c3e80faecd628ae552a6c3 (diff) | |
Add prefetching support on macOS
macOS doesn't have posix_fadvise(), but fcntl() with the F_RDADVISE
command does the same thing.
Some related documentation has been generalized to not mention
posix_advise() specifically anymore.
Reviewed-by: Thomas Munro <thomas.munro@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/0827edec-1317-4917-a186-035eb1e3241d%40eisentraut.org
Diffstat (limited to 'src/backend/commands/variable.c')
| -rw-r--r-- | src/backend/commands/variable.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/commands/variable.c b/src/backend/commands/variable.c index 6202c5ebe44..136c584305a 100644 --- a/src/backend/commands/variable.c +++ b/src/backend/commands/variable.c @@ -1212,7 +1212,7 @@ check_effective_io_concurrency(int *newval, void **extra, GucSource source) #ifndef USE_PREFETCH if (*newval != 0) { - GUC_check_errdetail("\"effective_io_concurrency\" must be set to 0 on platforms that lack posix_fadvise()."); + GUC_check_errdetail("\"effective_io_concurrency\" must be set to 0 on platforms that lack support for issuing read-ahead advice."); return false; } #endif /* USE_PREFETCH */ @@ -1225,7 +1225,7 @@ check_maintenance_io_concurrency(int *newval, void **extra, GucSource source) #ifndef USE_PREFETCH if (*newval != 0) { - GUC_check_errdetail("\"maintenance_io_concurrency\" must be set to 0 on platforms that lack posix_fadvise()."); + GUC_check_errdetail("\"maintenance_io_concurrency\" must be set to 0 on platforms that lack support for issuing read-ahead advice."); return false; } #endif /* USE_PREFETCH */ |