svn commit: r280971 - in head: contrib/ipfilter/tools share/man/man4 sys/contrib/ipfilter/netinet sys/netinet sys/netipsec sys/netpfil/pf

[Hans Petter Selasky]

On 04/02/15 18:00, Robert Watson wrote:
> On Thu, 2 Apr 2015, Mateusz Guzik wrote:
>
>>> If you carefully read the thread I referred to, you would notice that
>>> on many arches, save amd64 and i386, all systems stats are prone to
>>> mangling the stats due to migration within PCPU_INC. Look here:
>>>
>>> grep '^#define    PCPU_ADD' sys/*/include/pcpu.h
>>>
>>> Do we have reports on not precise enough statistics, yet?
>>
>> How many non-x86 installations with multiple cpus and high traffic are
>> out there?
>
> Not sure if this was a rhetorical question or not, but: quite a few.  We
> have support for several highly threaded 64-bit MIPS systems including
> those from Cavium and Broadcom (was NetLogic Micro was RMI).  Several
> reference systems are in the netperf cluster including 16- and 32-thread
> systems normally deployed in high-performance network products.  It's
> possible that ARMv8 systems will gradually displayce 64-bit MIPS systems
> in this arena in the future, but hard to say.  Either way, it's not x86.
> :-)
>

Hi,

I've sketched up my proposal here, please have a look.

https://reviews.freebsd.org/D2211

--HPS