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Date:      Tue, 20 Oct 2015 17:11:12 -0453.75
From:      "William A. Mahaffey III" <wam@hiwaay.net>
To:        freebsd-questions@freebsd.org
Subject:   Re: Post install FWIW
Message-ID:  <5626BAB6.4070304@hiwaay.net>
In-Reply-To: <562685CE.5050309@sneakertech.com>
References:  <56265636.4050208@hiwaay.net> <562685CE.5050309@sneakertech.com>

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On 10/20/15 13:26, Quartz wrote:
>> When I dd'ed /dev/zero to (re-) initialize the individual
>> drives during install, I saw 125-ish MB/s per drive, so this is 90-ish %
>> efficient for this write.
>
> Do remember that using dd to estimate disk speeds is tricky since its 
> write pattern is somewhat non-standard. You should try a more 'real 
> world' test like rsyncing a bunch of random crap with differing sizes.
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*Agreed*, that's why I called it 'light benchmarking'. I will be alert 
to more data as time goes on, but this looked so promising I decided to 
spread the love, so to speak ....


-- 

	William A. Mahaffey III

  ----------------------------------------------------------------------

	"The M1 Garand is without doubt the finest implement of war
	 ever devised by man."
                            -- Gen. George S. Patton Jr.




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