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Date:      Mon, 20 Mar 1995 08:47:44 -0800 (PST)
From:      "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
To:        kuku@gilberto.physik.rwth-aachen.de (Christoph P. Kukulies)
Cc:        freebsd-current@freefall.cdrom.com
Subject:   Re: iozone read vs. write
Message-ID:  <199503201647.IAA27236@gndrsh.aac.dev.com>
In-Reply-To: <199503201602.RAA02319@gilberto.physik.rwth-aachen.de> from "Christoph P. Kukulies" at Mar 20, 95 05:02:31 pm

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> 
> iozone 13 ...
> 
> Writing the 13 Megabyte file, 'iozone.tmp'...15.085938 seconds
> Reading the file...4.000000 seconds
> 
> IOZONE performance measurements:
> 	903589 bytes/second for writing the file
> 	3407872 bytes/second for reading the file
> 
> Does anone have an explanation why the number diverge to such an extent?
> (System is a 32 MB 486DX2/66 EIDE 2 Quantum 540 system)

I suspect a set of bad newfs parameters on this drive, can you
send me (in private email, no need for the whole list to read it)
the disklabel and the first 50 lines of dumpfs for the file system
you are seing this on.



-- 
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation Company                   Custom computers for FreeBSD



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