On Feb 4, 2008, at 5:10 PM, Marion Hakanson wrote:

> [EMAIL PROTECTED] said:
>> FYI, you can use the '-c' option to compare results from various  
>> runs   and
>> have one single report to look at.
>
> That's a handy feature.  I've added a couple of such comparisons:
>       http://acc.ohsu.edu/~hakansom/thumper_bench.html
>
> Marion
>
>

Your finding for random reads with or without NCQ match my findings:
http://blogs.sun.com/erickustarz/entry/ncq_performance_analysis

Disabling NCQ looks like a very tiny win for the multi-stream read  
case.  I found a much bigger win, but i was doing RAID-0 instead of  
RAID-Z.

eric

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