diff options
| -rw-r--r-- | src/vlib/buffer.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/vlib/buffer.c b/src/vlib/buffer.c index a645438640a..17e7d24cb27 100644 --- a/src/vlib/buffer.c +++ b/src/vlib/buffer.c @@ -507,8 +507,14 @@ vlib_buffer_chain_append_data_with_alloc (vlib_main_t * vm, static uword vlib_buffer_alloc_size (uword ext_hdr_size, uword data_size) { - return CLIB_CACHE_LINE_ROUND (ext_hdr_size + sizeof (vlib_buffer_t) + - data_size); + uword alloc_size = ext_hdr_size + sizeof (vlib_buffer_t) + data_size; + alloc_size = CLIB_CACHE_LINE_ROUND (alloc_size); + + /* in case when we have even number of cachelines, we add one more for + * better cache occupancy */ + alloc_size |= CLIB_CACHE_LINE_BYTES; + + return alloc_size; } u8 |