ofproto: Increase default datapath max_idle time.

The datapath max_idle value determines how long to wait before deleting
an idle datapath flow when operating below the flow_limit. This patch
increases the max_idle to 10 seconds, which allows datapath flows to be
remain cached even if they are used less consistently, and provides a
small improvement in the supported number of flows when operating around
the flow_limit.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>

diff --git a/ofproto/ofproto.h b/ofproto/ofproto.h
index 1b8709a..d60b198 100644 (file)
--- a/ofproto/ofproto.h
+++ b/ofproto/ofproto.h
@@ -267,7 +267,7 @@ int ofproto_port_dump_done(struct ofproto_port_dump *);
         )
 
 #define OFPROTO_FLOW_LIMIT_DEFAULT 200000
-#define OFPROTO_MAX_IDLE_DEFAULT 1500
+#define OFPROTO_MAX_IDLE_DEFAULT 10000 /* ms */
 
 const char *ofproto_port_open_type(const char *datapath_type,
                                    const char *port_type);