diff options
| author |   Florin Coras <fcoras@cisco.com> | 2018-03-16 08:48:31 -0700 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2018-03-23 14:30:06 +0000 |
| commit | 81a13db67f6e3cca2a974e4c32d8e9db940645dc (patch) | |
| tree | 5ef6438d2298ad1e5dec13f8d3f842b182c68068 /src/vnet/tcp | |
| parent | 0bee9ce4af04322c56f7511f24bda4874e78a4b4 (diff) | |
tcp/session: sprinkle prefetches
Change-Id: Idef3c665580c13d72e99f43d16b8b13cc6ab746f
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp')
| -rw-r--r-- | src/vnet/tcp/tcp_input.c | 8 | ||||
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c index 86bce4895b6..07f183891ea 100644 --- a/src/vnet/tcp/tcp_input.c +++ b/src/vnet/tcp/tcp_input.c @@ -1713,6 +1713,14 @@ tcp46_established_inline (vlib_main_t * vm, vlib_node_runtime_t * node, tcp_connection_t *tc0; u32 next0 = tcp_next_drop (is_ip4), error0 = TCP_ERROR_ENQUEUED; + if (n_left_from > 1) + { + vlib_buffer_t *pb; + pb = vlib_get_buffer (vm, from[1]); + vlib_prefetch_buffer_header (pb, LOAD); + CLIB_PREFETCH (pb->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + } + bi0 = from[0]; to_next[0] = bi0; from += 1; diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index bbcbc912175..2b5a5cd73fe 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1771,6 +1771,14 @@ tcp46_output_inline (vlib_main_t * vm, tcp_header_t *th0 = 0; u32 error0 = TCP_ERROR_PKTS_SENT, next0 = TCP_OUTPUT_NEXT_IP_LOOKUP; + if (n_left_from > 1) + { + vlib_buffer_t *pb; + pb = vlib_get_buffer (vm, from[1]); + vlib_prefetch_buffer_header (pb, STORE); + CLIB_PREFETCH (pb->data, 2 * CLIB_CACHE_LINE_BYTES, STORE); + } + bi0 = from[0]; to_next[0] = bi0; from += 1; |