On Wed, Mar 08, 2017 at 09:00:34AM +0500, Eugene M. Zheganin wrote:

> Hi.
> 
> Some have probably seen this already - 
> http://lists.dragonflybsd.org/pipermail/users/2017-March/313254.html
> 
> So, could anyone explain why FreeBSD was owned that much. Test is split  
> into two parts, one is nginx part, and the other is the IPv4 forwarding 

three: UFS part. And multiple simulations access to same file/block
can cause page lock congestion.

> part. I understand that nginx ownage was due to SO_REUSEPORT feature, 
> which we do formally have, but in DFBSD and Linux it does provide a 
> kernel socket multiplexor, which eliminates locking, and ours does not. 
> I have only found traces of discussion that DFBSD implementation is too 
> hackish. Well, hackish or not, but it's 4 times faster, as it turns out. 
> The IPv4 forwarding loss is pure defeat though.
> 
> Please not that although they use HEAD it these tests, they also mention 
> that this is the GENERIC-NODEBUG kernel which means this isn't related 
> to the WITNESS stuff.
> 
> Please also don't consider this trolling, I'm a big FreeBSD fan through 
> the years, so I'm asking because I'm kind of concerned.
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