- change the buffer size from a constant to a

  TUNABLE variable (hw.netmap.buf_size) so we can experiment
  with values different from 2048 which may give better cache performance.

- rearrange the memory allocation code so it will be easier
  to replace it with a different implementation. The current code
  relies on a single large contiguous chunk of memory obtained through
  contigmalloc.
  The new implementation (not committed yet) uses multiple
  smaller chunks which are easier to fit in a fragmented address
  space.

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/tools/netmap/pkt-gen.c b/tools/tools/netmap/pkt-gen.c
index f2f4e40..5627e9e 100644
--- a/tools/tools/netmap/pkt-gen.c
+++ b/tools/tools/netmap/pkt-gen.c
@@ -124,7 +124,7 @@ struct pkt {
 	struct ether_header eh;
 	struct ip ip;
 	struct udphdr udp;
-	uint8_t body[NETMAP_BUF_SIZE];
+	uint8_t body[2048];	// XXX hardwired
 } __attribute__((__packed__));
 
 /*