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authorDamjan Marion <damarion@cisco.com>2019-03-13 12:41:54 +0100
committerFlorin Coras <florin.coras@gmail.com>2019-03-13 16:44:13 +0000
commit3e94c419e3398e0c030ed0d3d3c72cac38397fe6 (patch)
tree69676d9c054e82bc8073e2bc0b6af6817ca45c5c /src/vlib
parent7e5735d31274ed281aba9785667c2472cacdcc5f (diff)
buffers: don't use clib_memcpy for copying buffer indices
Should be faster this way if n_indices is not constant value Change-Id: I6c34fd313daa2392199f3b9bd20d0cd6cf9ae21b Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib')
-rw-r--r--src/vlib/buffer_funcs.h38
1 files changed, 37 insertions, 1 deletions
diff --git a/src/vlib/buffer_funcs.h b/src/vlib/buffer_funcs.h
index cc16fa71a76..f2ac0bd92dd 100644
--- a/src/vlib/buffer_funcs.h
+++ b/src/vlib/buffer_funcs.h
@@ -101,7 +101,43 @@ vlib_buffer_get_default_data_size (vlib_main_t * vm)
static_always_inline void
vlib_buffer_copy_indices (u32 * dst, u32 * src, u32 n_indices)
{
- clib_memcpy_fast (dst, src, n_indices * sizeof (u32));
+#if defined(CLIB_HAVE_VEC512)
+ while (n_indices >= 16)
+ {
+ u32x16_store_unaligned (u32x16_load_unaligned (src), dst);
+ dst += 16;
+ src += 16;
+ n_indices -= 16;
+ }
+#endif
+
+#if defined(CLIB_HAVE_VEC256)
+ while (n_indices >= 8)
+ {
+ u32x8_store_unaligned (u32x8_load_unaligned (src), dst);
+ dst += 8;
+ src += 8;
+ n_indices -= 8;
+ }
+#endif
+
+#if defined(CLIB_HAVE_VEC128)
+ while (n_indices >= 4)
+ {
+ u32x4_store_unaligned (u32x4_load_unaligned (src), dst);
+ dst += 4;
+ src += 4;
+ n_indices -= 4;
+ }
+#endif
+
+ while (n_indices)
+ {
+ dst[0] = src[0];
+ dst += 1;
+ src += 1;
+ n_indices -= 1;
+ }
}
STATIC_ASSERT_OFFSET_OF (vlib_buffer_t, template_end, 64);