Date: Sat, 28 Mar 2009 16:12:32 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r190506 - stable/7/sys/netinet Message-ID: <200903281612.n2SGCW0I006721@svn.freebsd.org>
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Author: rwatson Date: Sat Mar 28 16:12:32 2009 New Revision: 190506 URL: http://svn.freebsd.org/changeset/base/190506 Log: Enable soreceive_dgram() use by UDP by default in 7.x. This can lead to a significant performance improvement for multi-threaded UDP socket receive, such as found in BIND, memcached, VoIP applications, etc. Requested by: Florian Smeets <flo at kasimir.com> Approved by: re (kib) Modified: stable/7/sys/netinet/udp_usrreq.c Modified: stable/7/sys/netinet/udp_usrreq.c ============================================================================== --- stable/7/sys/netinet/udp_usrreq.c Sat Mar 28 15:54:08 2009 (r190505) +++ stable/7/sys/netinet/udp_usrreq.c Sat Mar 28 16:12:32 2009 (r190506) @@ -131,7 +131,7 @@ u_long udp_recvspace = 40 * (1024 + SYSCTL_ULONG(_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW, &udp_recvspace, 0, "Maximum space for incoming UDP datagrams"); -static int udp_soreceive_dgram; +static int udp_soreceive_dgram = 1; SYSCTL_INT(_net_inet_udp, OID_AUTO, soreceive_dgram_enabled, CTLFLAG_RD | CTLFLAG_TUN, &udp_soreceive_dgram, 0, "Use experimental optimized datagram receive");
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