Date: Fri, 14 Feb 1997 11:05:39 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: se@freebsd.org (Stefan Esser) Cc: hardware@freebsd.org Subject: Re: _big_ IDE disks? Message-ID: <199702140035.LAA21975@genesis.atrad.adelaide.edu.au> In-Reply-To: <19970213175603.JR15968@x14.mi.uni-koeln.de> from Stefan Esser at "Feb 13, 97 05:56:03 pm"
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Stefan Esser stands accused of saying:
> On Feb 13, msmith@atrad.adelaide.edu.au (Michael Smith) wrote:
> > > You have an iozone result or some such, just for the fun of it ??
> >
> > I'll run one up for you tomorrow, and send it to -hardware.
>
> Could you please run Bonnie on it, too ?
> It gives much more useful results than iozone, IMHO ...
Ok, sure :
bom:/local0>dmesg
avail memory = 62447616 (60984K bytes)
...
wdc0 at 0x1f0-0x1f7 irq 14 flags 0x80ff80ff on isa
wdc0: unit 0 (wd0): <Maxtor 85120 A8 ->, 32-bit, multi-block-16
wd0: 788MB (10003392 sectors), 9924 cyls, 16 heads, 63 S/T, 512 B/S
(Note that I haven't patched the kernel for the bogus arithmetic yet.)
Writing the 128 Megabyte file, 'iozone.tmp'...16.093750 seconds
Reading the file...14.406250 seconds
IOZONE performance measurements:
8339742 bytes/second for writing the file
9316631 bytes/second for reading the file
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
128 3858 71.8 8178 28.2 2486 14.1 4210 71.1 8280 28.1 117.0 4.7
(Just for amusement, I ran iozone without any of the go-faster options
for the 'wd' driver enabled :
Writing the 128 Megabyte file, 'iozone.tmp'...22.453125 seconds
Reading the file...23.945312 seconds
IOZONE performance measurements:
5977685 bytes/second for writing the file
5605177 bytes/second for reading the file
... so they definitely help 8)
--
]] Mike Smith, Software Engineer msmith@gsoft.com.au [[
]] Genesis Software genesis@gsoft.com.au [[
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