Date: Sat, 16 May 1998 23:39:39 -0700 (PDT) From: Bill Fenner <fenner@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sbin@FreeBSD.ORG Subject: cvs commit: src/sbin/dump dumprmt.c Message-ID: <199805170639.XAA19719@freefall.freebsd.org>
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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
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