OPTIM: buffers: align the buffer pool to 64

This struct is used by memcpy() and friends, particularly during the
early recv() and send(). By keeping it 64-byte aligned, we let the
underlying libs/kernel use optimal operations (e.g.  AVX512) for memory
copies while right now it's just random (buffers are found to be equally
aligned to 32 and 64 in practice).

diff --git a/src/dynbuf.c b/src/dynbuf.c
index 336e40d1dbbe9d0aab4e40976ef9c9627429f120..12dac1a58d021d4e346c13bfbb1623756dc1331e 100644 (file)
--- a/src/dynbuf.c
+++ b/src/dynbuf.c
@@ -32,7 +32,7 @@ int init_buffer()
        int done;
        int i;
 
-       pool_head_buffer = create_pool("buffer", global.tune.bufsize, MEM_F_SHARED|MEM_F_EXACT);
+       pool_head_buffer = create_aligned_pool("buffer", global.tune.bufsize, 64, MEM_F_SHARED|MEM_F_EXACT);
        if (!pool_head_buffer)
                return 0;