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tcp/session: sprinkle prefetches
[vpp.git]
/
src
/
vnet
/
tcp
/
tcp_output.c
diff --git
a/src/vnet/tcp/tcp_output.c
b/src/vnet/tcp/tcp_output.c
index
bbcbc91
..
2b5a5cd
100644
(file)
--- 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;
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;
bi0 = from[0];
to_next[0] = bi0;
from += 1;