Date: Thu, 22 Jan 2004 13:02:16 +0200 From: Ian Freislich <if@hetzner.co.za> To: "Poul-Henning Kamp" <phk@phk.freebsd.dk> Cc: current@freebsd.org Subject: Re: Is BUFSIZ too small ? Message-ID: <E1AjcbI-00050I-00@hetzner.co.za> In-Reply-To: Your message of "Mon, 19 Jan 2004 22:13:37 %2B0100." <98907.1074546817@critter.freebsd.dk>
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"Poul-Henning Kamp" wrote: > In message <200401192111.i0JLBYVk004060@apollo.backplane.com>, Matthew Dillon w > rites: > > > >:I noticed that we still have BUFSIZ in stdio.h defined to only 1024, > >:and wonder if that should be increased these days. > >: > >:Is there anybody who could devise and run some benchmarks to find > >:out what effect it would have to increase it to for instance 4096 ? > >: > >:-- > >:Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > >:phk@FreeBSD.ORG | TCP/IP since RFC 956 > > > > Very few programs use BUFSIZ for the actual I/O ops [...] > > I share many of your doubts, but I would still like to see some > benchmarks :-) Perhaps ftp is one of those things that uses BUFSIZ for the actual I/O ops. All of it's reads and writes if you truss it are 1024 bytes which impacts its performance (here at least). -- Ian Freislich
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