diff options
Diffstat (limited to 'ext/opcache/shared_alloc_mmap.c')
| -rw-r--r-- | ext/opcache/shared_alloc_mmap.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ext/opcache/shared_alloc_mmap.c b/ext/opcache/shared_alloc_mmap.c index 121a2e4a40..6d72e5b4ab 100644 --- a/ext/opcache/shared_alloc_mmap.c +++ b/ext/opcache/shared_alloc_mmap.c @@ -32,6 +32,9 @@ #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS) # define MAP_ANONYMOUS MAP_ANON #endif +#if defined(MAP_ALIGNED_SUPER) +# define MAP_HUGETLB MAP_ALIGNED_SUPER +#endif static int create_segments(size_t requested_size, zend_shared_segment ***shared_segments_p, int *shared_segments_count, char **error_in) { @@ -48,10 +51,14 @@ static int create_segments(size_t requested_size, zend_shared_segment ***shared_ #ifdef MAP_HUGETLB /* Try to allocate huge pages first to reduce dTLB misses. - * OS has to be configured properly + * OSes has to be configured properly + * on Linux * (e.g. https://wiki.debian.org/Hugepages#Enabling_HugeTlbPage) * You may verify huge page usage with the following command: * `grep "Huge" /proc/meminfo` + * on FreeBSD + * sysctl vm.pmap.pg_ps_enabled entry + * (boot time config only, but enabled by default on most arches). */ shared_segment->p = mmap(0, requested_size, PROT_READ | PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS|MAP_HUGETLB, -1, 0); if (shared_segment->p != MAP_FAILED) { |