Enable the following TCP options by default to give it more exposure:
rfc3042 Limited retransmit rfc3390 Increasing TCP's initial congestion Window inflight TCP inflight bandwidth limiting All my production server have it enabled and there have been no issues. I am confident about having them on by default and it gives us better overall TCP performance. Reviewed by: sam (mentor)
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dba7bc6a65
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=124199
@ -125,11 +125,11 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, drop_synfin, CTLFLAG_RW,
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&drop_synfin, 0, "Drop TCP packets with SYN+FIN set");
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#endif
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static int tcp_do_rfc3042 = 0;
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static int tcp_do_rfc3042 = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3042, CTLFLAG_RW,
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&tcp_do_rfc3042, 0, "Enable RFC 3042 (Limited Transmit)");
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static int tcp_do_rfc3390 = 0;
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static int tcp_do_rfc3390 = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3390, CTLFLAG_RW,
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&tcp_do_rfc3390, 0,
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"Enable RFC 3390 (Increasing TCP's Initial Congestion Window)");
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@ -125,11 +125,11 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, drop_synfin, CTLFLAG_RW,
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&drop_synfin, 0, "Drop TCP packets with SYN+FIN set");
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#endif
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static int tcp_do_rfc3042 = 0;
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static int tcp_do_rfc3042 = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3042, CTLFLAG_RW,
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&tcp_do_rfc3042, 0, "Enable RFC 3042 (Limited Transmit)");
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static int tcp_do_rfc3390 = 0;
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static int tcp_do_rfc3390 = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, rfc3390, CTLFLAG_RW,
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&tcp_do_rfc3390, 0,
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"Enable RFC 3390 (Increasing TCP's Initial Congestion Window)");
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@ -159,7 +159,7 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, isn_reseed_interval, CTLFLAG_RW,
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* 1024 exists only for debugging. A good production default would be
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* something like 6100.
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*/
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static int tcp_inflight_enable = 0;
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static int tcp_inflight_enable = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, inflight_enable, CTLFLAG_RW,
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&tcp_inflight_enable, 0, "Enable automatic TCP inflight data limiting");
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@ -159,7 +159,7 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, isn_reseed_interval, CTLFLAG_RW,
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* 1024 exists only for debugging. A good production default would be
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* something like 6100.
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*/
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static int tcp_inflight_enable = 0;
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static int tcp_inflight_enable = 1;
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SYSCTL_INT(_net_inet_tcp, OID_AUTO, inflight_enable, CTLFLAG_RW,
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&tcp_inflight_enable, 0, "Enable automatic TCP inflight data limiting");
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