Phoronix Benchmarks: Waht's wrong with FreeBSD 8.0?

[Ivan Voras]

Bill Moran wrote:
> In response to Ivan Voras <ivoras at freebsd.org>:
> 
>> Thomas Backman wrote:
>>> On Nov 30, 2009, at 9:47 AM, O. Hartmann wrote:
>>>
>>>> I'm just wondering what's wrong with FreeBSD 8.0/amd64 when I read the Benchmarks on Phoronix.org's website. Especially FreeBSD's threaded I/O shows in contrast to all claims that have been to be improoved the opposite.
>>> Corrected link: http://www.phoronix.com/scan.php?page=article&item=freebsd8_benchmarks&num=1
>>>
>>> And yeah, quite honestly: disk scheduling in FreeBSD appears to suck... The only reason I'm not switching from Linux. :(
> 
> "All operating systems were left with their default options during the
> installation process..."
> 
> It's common knowledge that the default value for vfs.read_max is non-
> optimal for most hardware and that significant performance improvements
> can be made in most cases by raising it.

On the other hand, random IO is negatively influenced by readahead :)