diff options
Diffstat (limited to 'src/include/pg_config_manual.h')
| -rw-r--r-- | src/include/pg_config_manual.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h index 3cbdc6d180..d27c8601fa 100644 --- a/src/include/pg_config_manual.h +++ b/src/include/pg_config_manual.h @@ -310,6 +310,45 @@ /* #define RANDOMIZE_ALLOCATED_MEMORY */ /* + * For cache invalidation debugging, define CLOBBER_CACHE_ENABLED to enable + * use of the debug_invalidate_system_caches_always GUC to aggressively flush + * syscache/relcache entries whenever it's possible to deliver invalidations. + * See AcceptInvalidationMessages() in src/backend/utils/cache/inval.c for + * details. + * + * USE_ASSERT_CHECKING builds default to enabling this. It's possible to use + * CLOBBER_CACHE_ENABLED without a cassert build and the implied + * CLOBBER_FREED_MEMORY and MEMORY_CONTEXT_CHECKING options but it's unlikely + * to be as effective at identifying problems. + */ +/* #define CLOBBER_CACHE_ENABLED */ + +#if defined(USE_ASSERT_CHECKING) && !defined(CLOBBER_CACHE_ENABLED) +#define CLOBBER_CACHE_ENABLED +#endif + +/* + * Backwards compatibility for the older compile-time-only cache clobber + * macros. + */ +#if !defined(CLOBBER_CACHE_ENABLED) && (defined(CLOBBER_CACHE_ALWAYS) || defined(CLOBBER_CACHE_RECURSIVELY)) +#define CLOBBER_CACHE_ENABLED +#endif + +/* + * Recover memory used for relcache entries when invalidated. See + * RelationBuildDescr() in src/backend/utils/cache/relcache.c. + * + * This is active automatically for clobber cache builds when clobbering is + * active, but can be overridden here by explicitly defining + * RECOVER_RELATION_BUILD_MEMORY. Define to 1 to always free relation cache + * memory even when clobber is off, or to 0 to never free relation cache + * memory even when clobbering is on. + */ +/* #define RECOVER_RELATION_BUILD_MEMORY 0 */ /* Force disable */ +/* #define RECOVER_RELATION_BUILD_MEMORY 1 */ /* Force enable */ + +/* * Define this to force all parse and plan trees to be passed through * copyObject(), to facilitate catching errors and omissions in * copyObject(). |