From owner-cvs-sbin Sat May 16 23:44:14 1998 Return-Path: Received: (from daemon@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA12274 for cvs-sbin-outgoing; Sat, 16 May 1998 23:44:14 -0700 (PDT) (envelope-from owner-cvs-sbin) Received: from freefall.freebsd.org (freefall.FreeBSD.ORG [204.216.27.21]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA12141; Sat, 16 May 1998 23:43:45 -0700 (PDT) (envelope-from fenner@FreeBSD.org) From: Bill Fenner Received: (from fenner@localhost) by freefall.freebsd.org (8.8.8/8.8.5) id XAA19719; Sat, 16 May 1998 23:39:39 -0700 (PDT) Date: Sat, 16 May 1998 23:39:39 -0700 (PDT) Message-Id: <199805170639.XAA19719@freefall.freebsd.org> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sbin@FreeBSD.ORG Subject: cvs commit: src/sbin/dump dumprmt.c Sender: owner-cvs-sbin@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk fenner 1998/05/16 23:39:39 PDT Modified files: sbin/dump dumprmt.c Log: Turn on TCP_NODELAY on the remote socket, to turn off sender silly window syndrome avoidance. The combination of SWS avoidance and ack-every-other causes low throughput if the block size divided by the MSS is odd (which is true with the default block size and MSS). Turning on TCP_NODELAY disables the Nagle algorithm and sender SWS avoidance. The rdump request/response protocol can not invoke Nagle and cannot cause SWS, so this has no negative effects. Revision Changes Path 1.10 +3 -6 src/sbin/dump/dumprmt.c