diff options
Diffstat (limited to 'numpy/core')
| -rw-r--r-- | numpy/core/src/multiarray/alloc.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/numpy/core/src/multiarray/alloc.c b/numpy/core/src/multiarray/alloc.c index e0d2d6056..54ce9f131 100644 --- a/numpy/core/src/multiarray/alloc.c +++ b/numpy/core/src/multiarray/alloc.c @@ -27,6 +27,13 @@ #ifdef NPY_OS_LINUX #include <sys/mman.h> +#ifndef MADV_HUGEPAGE +/* + * Use code 14 (MADV_HUGEPAGE) if it isn't defined. This gives a chance of + * enabling huge pages even if built with linux kernel < 2.6.38 + */ +#define MADV_HUGEPAGE 14 +#endif #endif #define NBUCKETS 1024 /* number of buckets for data*/ @@ -76,14 +83,7 @@ _npy_alloc_cache(npy_uintp nelem, npy_uintp esz, npy_uint msz, if (NPY_UNLIKELY(nelem * esz >= ((1u<<22u)))) { npy_uintp offset = 4096u - (npy_uintp)p % (4096u); npy_uintp length = nelem * esz - offset; -#ifdef MADV_HUGEPAGE madvise((void*)((npy_uintp)p + offset), length, MADV_HUGEPAGE); -#else - // Use code 14 (MADV_HUGEPAGE) if it isn't defined. This gives - // a chance of enabling huge pages even if build with linux - // kernel < 2.6.38 - madvise((void*)((npy_uintp)p + offset), length, 14); -#endif } #endif } |