From owner-cvs-sys  Fri Sep 20 14:25:54 1996
Return-Path: owner-cvs-sys
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id OAA01436
          for cvs-sys-outgoing; Fri, 20 Sep 1996 14:25:54 -0700 (PDT)
Received: (from pst@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id OAA01242;
          Fri, 20 Sep 1996 14:25:24 -0700 (PDT)
Date: Fri, 20 Sep 1996 14:25:24 -0700 (PDT)
From: Paul Traina <pst>
Message-Id: <199609202125.OAA01242@freefall.freebsd.org>
To: CVS-committers, cvs-all, cvs-sys
Subject: cvs commit:  src/sys/netinet tcp_input.c
Sender: owner-cvs-sys@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

pst         96/09/20 14:25:23

  Modified:    sys/netinet  tcp_input.c
  Log:
  If the incomplete listen queue for a given socket is full,
  drop the oldest entry in the queue.
  
  There was a fair bit of discussion as to whether or not the
  proper action is to drop a random entry in the queue.  It's
  my conclusion that a random drop is better than a head drop,
  however profiling this section of code (done by John Capo)
  shows that a head-drop results in a significant performance
  increase.
  
  There are scenarios where a random drop is more appropriate.
  If I find one in reality, I'll add the random drop code under
  a conditional.
  
  Obtained from: discussions and code done by Vernon Schryver (vjs@sgi.com).
  
  Revision  Changes    Path
  1.49      +18 -5     src/sys/netinet/tcp_input.c