diff options
Diffstat (limited to 'src/include/pg_config_manual.h')
| -rw-r--r-- | src/include/pg_config_manual.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h index cb35697ad07..5cfc0ae1e80 100644 --- a/src/include/pg_config_manual.h +++ b/src/include/pg_config_manual.h @@ -214,13 +214,13 @@ #endif /* - * Assumed cache line size. This doesn't affect correctness, but can be - * used for low-level optimizations. Currently, this is only used to pad - * some data structures in xlog.c, to ensure that highly-contended fields - * are on different cache lines. Too small a value can hurt performance due - * to false sharing, while the only downside of too large a value is a few - * bytes of wasted memory. The default is 128, which should be large enough - * for all supported platforms. + * Assumed cache line size. This doesn't affect correctness, but can be used + * for low-level optimizations. Currently, this is used to pad some data + * structures in xlog.c, to ensure that highly-contended fields are on + * different cache lines. Too small a value can hurt performance due to false + * sharing, while the only downside of too large a value is a few bytes of + * wasted memory. The default is 128, which should be large enough for all + * supported platforms. */ #define PG_CACHE_LINE_SIZE 128 |