diff options
Diffstat (limited to 'src/include/utils/memutils.h')
| -rw-r--r-- | src/include/utils/memutils.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/include/utils/memutils.h b/src/include/utils/memutils.h index 4d105793d9..597ffc9b56 100644 --- a/src/include/utils/memutils.h +++ b/src/include/utils/memutils.h @@ -68,9 +68,9 @@ * On systems with 8-byte alignment, we allow 29 bits for the context ID and * 32 bits for the size. This allows for up to half a billion context IDs and * sizes of up to 1 byte less than 4GB. Thus, extended headers should - * almost never be required. On systems with 4-byte alignment, we allow 11 - * bits for the context ID and 18 bits for the size, which allows for up to - * 2048 possible context IDs and allocations of up to 1 byte less than 256kB. + * almost never be required. On systems with 4-byte alignment, we allow 20 + * bits for the context ID and 19 bits for the size, which allows for up to + * 1 million possible context IDs and allocations of up to 511 bytes. * This should be good enough that most allocations won't need an extended * header, but some will. */ @@ -81,8 +81,8 @@ typedef uint64 chunk_unsigned; #define CHUNK_SIZE_BITS 32 #else typedef uint32 chunk_unsigned; -#define CHUNK_CONTEXT_ID_BITS 11 -#define CHUNK_SIZE_BITS 18 +#define CHUNK_CONTEXT_ID_BITS 20 +#define CHUNK_SIZE_BITS 9 #endif /* Context type codes; must be less than 1 << CHUNK_CONTEXT_TYPE_BITS. */ |