Performance difference between UFS and ZFS with NFS

[Eric Browning]

I am using /dev/zero

/usr/bin/time -h dd if=/dev/zero of=sometestfile bs=1024 count=3000000


On Sun, Nov 24, 2013 at 12:31 PM, krad <kraduk at gmail.com> wrote:

> I was thinking the same, if it was using /dev/zero as an input any
> compression would skew the results a little.
>
>
> On 24 November 2013 15:15, Steven Hartland <killing at multiplay.co.uk>wrote:
>
>> ----- Original Message ----- From: "Eric Browning"
>>
>>
>>
>>  On a side note I forgot that I had used dd to test the disk performance a
>>> while ago when I was using ZFS.
>>>
>>> ZFS performance:
>>> 3072000000 bytes transferred in 34.167480 secs (89910055 bytes/sec)
>>> 34.17s real 0.61s user 31.89s sys
>>>
>>> UFS performance:
>>> 3072000000 bytes transferred in 11.848883 secs (259264942 bytes/sec)
>>> 11.85s real 0.58s user 11.25s sys
>>>
>>> Again, even with dd performance is about 3x faster with UFS with the same
>>> disks.
>>>
>>
>> Interesting, what was you command exactly?
>>
>>    Regards
>>    Steve
>>
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>
>


-- 
Eric Browning
Systems Administrator
801-984-7623

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