diff options
Diffstat (limited to 'Src/mem.c')
| -rw-r--r-- | Src/mem.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Src/mem.c b/Src/mem.c index 62d18d0cd..e31145e1e 100644 --- a/Src/mem.c +++ b/Src/mem.c @@ -79,16 +79,15 @@ #include <sys/mman.h> -#if 0 /* - * This change was designed to enable use of memory mapping on MacOS. + * This definition is designed to enable use of memory mapping on MacOS. * However, performance tests indicate that MacOS mapped regions are - * significantly slower to allocate than memory from malloc(). + * somewhat slower to allocate than memory from malloc(), so whether + * using this improves performance depends on details of zhalloc(). */ #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS) #define MAP_ANONYMOUS MAP_ANON #endif -#endif /* 0 */ #if defined(MAP_ANONYMOUS) && defined(MAP_PRIVATE) |