diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/jemalloc/internal/jemalloc_internal.h.in | 7 | ||||
| -rw-r--r-- | include/jemalloc/internal/jemalloc_internal_defs.h.in | 9 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/jemalloc/internal/jemalloc_internal.h.in b/include/jemalloc/internal/jemalloc_internal.h.in index 29aa802..496997d 100644 --- a/include/jemalloc/internal/jemalloc_internal.h.in +++ b/include/jemalloc/internal/jemalloc_internal.h.in @@ -70,6 +70,13 @@ static const bool config_prof_libunwind = false #endif ; +static const bool maps_coalesce = +#ifdef JEMALLOC_MAPS_COALESCE + true +#else + false +#endif + ; static const bool config_munmap = #ifdef JEMALLOC_MUNMAP true diff --git a/include/jemalloc/internal/jemalloc_internal_defs.h.in b/include/jemalloc/internal/jemalloc_internal_defs.h.in index ed8347a..b0f8caa 100644 --- a/include/jemalloc/internal/jemalloc_internal_defs.h.in +++ b/include/jemalloc/internal/jemalloc_internal_defs.h.in @@ -170,6 +170,15 @@ #undef LG_PAGE /* + * If defined, adjacent virtual memory mappings with identical attributes + * automatically coalesce, and they fragment when changes are made to subranges. + * This is the normal order of things for mmap()/munmap(), but on Windows + * VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e. + * mappings do *not* coalesce/fragment. + */ +#undef JEMALLOC_MAPS_COALESCE + +/* * If defined, use munmap() to unmap freed chunks, rather than storing them for * later reuse. This is disabled by default on Linux because common sequences * of mmap()/munmap() calls will cause virtual memory map holes. |