Performance difference between UFS and ZFS with NFS

[Steven Hartland]

And whats your ZFS pool layout and ashift?

    Regards
    Steve
----- Original Message ----- 
From: "Eric Browning" <ericbrowning at skaggscatholiccenter.org>


>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
> 
> Skaggs Catholic Center
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