From mboxrd@z Thu Jan 1 00:00:00 1970 From: Octavian Purdila Subject: [net-next PATCH v3 0/3] net: reserve ports for applications using fixed port numbers Date: Thu, 11 Feb 2010 04:09:17 +0200 Message-ID: <1265854160-11763-1-git-send-email-opurdila@ixiacom.com> Cc: Octavian Purdila , netdev@vget.kernel.org, linux-kernel@vger.kernel.org, WANG Cong , Neil Horman , Eric Dumazet To: David Miller Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This patch series is based on Amerigo's v2 but it now uses a bitmap for port reservation. I've ran a while (1) { bind(0) } test (with ip_local_port_range 1024 65000) to see if there is any performance difference between the two approaches (ranges vs bitmap). I could not detect any significant difference, both cases scored in 2.76s +/- 0.01 on my setup. I've based this patch series on current net-next, but it contains a significant non networking part. Please let me know if I should handle this differently. Octavian Purdila (3): sysctl: refactor integer handling proc code sysctl: add proc_dobitmap net: reserve ports for applications using fixed port numbers Documentation/networking/ip-sysctl.txt | 12 + drivers/infiniband/core/cma.c | 7 +- include/linux/sysctl.h | 2 + include/net/ip.h | 6 + kernel/sysctl.c | 374 +++++++++++++++++++------------- net/ipv4/inet_connection_sock.c | 5 + net/ipv4/inet_hashtables.c | 2 + net/ipv4/sysctl_net_ipv4.c | 7 + net/ipv4/udp.c | 3 +- net/sctp/socket.c | 2 + 10 files changed, 264 insertions(+), 156 deletions(-)