Date: Tue, 27 Feb 96 9:49:19 MET From: Greg Lehey <lehey.pad@sni.de> To: coredump@nervosa.com (invalid opcode) Cc: hackers@freebsd.org (Hackers; FreeBSD) Subject: Re: Disk perf. with different HDs/Adapt. Message-ID: <199602270852.JAA17957@nixpbe.pdb.sni.de> In-Reply-To: <Pine.BSF.3.91.960226222753.14369A-100000@nervosa.com>; from "invalid opcode" at Feb 26, 96 10:28 pm
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> > On Mon, 26 Feb 1996, Greg Lehey wrote: >> How about a high-resolution option. For example, >> # time dd if=/dev/rsd0a of=/dev/null count=200 bs=64k >> 13107200 bytes transferred in 2 secs (6553600 bytes/sec) >> 1.92 real 0.01 user 0.05 sys >> # time -h dd if=/dev/rsd0a of=/dev/null count=200 bs=64k >> 13107200 bytes transferred in 2 secs (6553600 bytes/sec) >> 1.920317 real 0.009387 user 0.0512614 sys >> Greg > > How about you just use Bonnie. dd was not intended to be a benchmark > utility, I see no reason extending it's output for this. I think both you and Bruce are missing the point. I'm proposing an option to time(1), not to dd(1). I hope we're agreed that time(1) is intended for measuring times :-) Greg
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