From owner-freebsd-hackers Tue Sep 3 21:31:44 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA20783 for hackers-outgoing; Tue, 3 Sep 1996 21:31:44 -0700 (PDT) Received: from misery.sdf.com (misery.sdf.com [204.244.210.193]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA20777 for ; Tue, 3 Sep 1996 21:31:41 -0700 (PDT) Received: from localhost (tom@localhost) by misery.sdf.com (8.7.5/8.7.3) with SMTP id VAA10813 for ; Tue, 3 Sep 1996 21:48:23 -0700 (PDT) Date: Tue, 3 Sep 1996 21:48:22 -0700 (PDT) From: Tom Samplonius To: hackers@freebsd.org Subject: Impact of large listen() queue Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk What is the impact of using a large value (>100) for the backlog param to listen()? Does it impact performance? I assume that it eats some kind of kernel memory space, so how much? I know there is an old standard of a maximum of 5 for the backlog param. But most modern systems can handle much large values. Is there any disadvantage to using the maximum value (I believe under FreeBSD, this is 255) all the time? Tom