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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