Dan Anderson wrote:
> On Tue, 2 Sep 2008, Matthew Ahrens wrote:
>   
>> How do we get 4% faster when running on the same endianness as the fs was
>> created on?  (created on x86, run on amd64)  Where are the bulk of the calls
>> to BSWAP_* happening in that case?
>> --matt
>>     
>
> I've been wondering that too--this is just black box testing. I may have to 
> look at the code.
>
> I've been setting up a retest that eliminates process overhead (see thread 
> discussion) and disk read overhead (by running on swapfs).
> --
> This message posted from opensolaris.org
>   

I suspect that if the 4% is "genuine", it may come from device drivers 
which may perform endianness conversions.  But I'm not sure that the 
test results are bogus.

    -- Garrett
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