diff options
Diffstat (limited to 'sysdep/unix/alloc.c')
| -rw-r--r-- | sysdep/unix/alloc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sysdep/unix/alloc.c b/sysdep/unix/alloc.c index 3ea10c32..030fb9c1 100644 --- a/sysdep/unix/alloc.c +++ b/sysdep/unix/alloc.c @@ -20,6 +20,10 @@ #include <sys/mman.h> #endif +#ifdef CONFIG_DISABLE_THP +#include <sys/prctl.h> +#endif + long page_size = 0; #ifdef HAVE_MMAP @@ -293,6 +297,12 @@ page_cleanup(void *_ UNUSED) void resource_sys_init(void) { +#ifdef CONFIG_DISABLE_THP + /* Disable transparent huge pages, they do not work properly with madvice(MADV_DONTNEED) */ + if (prctl(PR_SET_THP_DISABLE, (unsigned long) 1, (unsigned long) 0, (unsigned long) 0, (unsigned long) 0) < 0) + die("prctl(PR_SET_THP_DISABLE) failed: %m"); +#endif + #ifdef HAVE_MMAP /* Check what page size the system supports */ if (!(page_size = sysconf(_SC_PAGESIZE))) |