net.inet.tcp.hostcache.list: RTTVAR value
- From: Mikolaj Golub <trociny@xxxxxxxxxxx>
- Date: Sun, 01 Jul 2012 19:30:06 +0300
Hi,
It looks for me that in the calculation of RTTVAR value for
net.inet.tcp.hostcache.list sysctl a wrong scale is used: TCP_RTT_SCALE
instead of TCP_RTTVAR_SCALE. See the attached patch. I am going to commit it
if nobody tell me that I am wrong here.
--
Mikolaj Golub
Index: sys/netinet/tcp_hostcache.c
===================================================================
--- sys/netinet/tcp_hostcache.c (revision 237918)
+++ sys/netinet/tcp_hostcache.c (working copy)
@@ -624,7 +624,7 @@ sysctl_tcp_hc_list(SYSCTL_HANDLER_ARGS)
msec(hc_entry->rmx_rtt *
(RTM_RTTUNIT / (hz * TCP_RTT_SCALE))),
msec(hc_entry->rmx_rttvar *
- (RTM_RTTUNIT / (hz * TCP_RTT_SCALE))),
+ (RTM_RTTUNIT / (hz * TCP_RTTVAR_SCALE))),
hc_entry->rmx_bandwidth * 8,
hc_entry->rmx_cwnd,
hc_entry->rmx_sendpipe,
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