diff options
| -rw-r--r-- | doc/sync/ftfw/conntrackd.conf | 13 | ||||
| -rw-r--r-- | src/read_config_yy.y | 4 |
2 files changed, 13 insertions, 4 deletions
diff --git a/doc/sync/ftfw/conntrackd.conf b/doc/sync/ftfw/conntrackd.conf index 3aa8216..06c3d15 100644 --- a/doc/sync/ftfw/conntrackd.conf +++ b/doc/sync/ftfw/conntrackd.conf @@ -27,8 +27,17 @@ Sync { # PurgeTimeout 15 - # Set Acknowledgement window size - ACKWindowSize 20 + # Set the acknowledgement window size. If you decrease this + # value, the number of acknowlegdments increases. More + # acknowledgments means more overhead as conntrackd has to + # handle more control messages. On the other hand, if you + # increase this value, the resend queue gets more populated. + # This results in more overhead in the queue releasing. + # The following value is based on some practical experiments + # measuring the cycles spent by the acknowledgment handling + # with oprofile. + # + ACKWindowSize 300 } # diff --git a/src/read_config_yy.y b/src/read_config_yy.y index c01abe4..0f6ffdc 100644 --- a/src/read_config_yy.y +++ b/src/read_config_yy.y @@ -1006,9 +1006,9 @@ init_config(char *filename) if (CONFIG(resend_queue_size) == 0) CONFIG(resend_queue_size) = 262144; - /* default to a window size of 20 packets */ + /* default to a window size of 300 packets */ if (CONFIG(window_size) == 0) - CONFIG(window_size) = 20; + CONFIG(window_size) = 300; /* double of 120 seconds which is common timeout of a final state */ if (conf.flags & CTD_SYNC_FTFW && CONFIG(del_timeout) == 0) |