20 Nov
2017
20 Nov
'17
8:59 p.m.
Who knows if it will go anywhere. I got dragged out of retirement with
hints of piles of money, so far, they loaned me a box.
I believe the likely target for this would be AMD's Epyc. They have already
pushed one box to serve up about 100Gbit/sec of movies and that's with them
doing TLS in the kernel; be faster if they could get the NIC to do that.
https://news.ycombinator.com/item?id=15367421
The limiting factor, so far as I can tell, is memory BW and PCIe lanes.
Epyc seems to deliver more of that.
On Mon, Nov 20, 2017 at 02:56:04PM -0500, Arthur Krewat wrote:
I would love to see the results of that, including
more information about
the architecture in question.
On 11/20/2017 2:10 PM, Larry McVoy wrote:
>On Mon, Nov 20, 2017 at 02:07:27PM -0500, Paul Winalski wrote:
>>It would mean that you wouldn't have to implement machine check
>>support and other hardware error handling. The VM hypervisor would do
>>that for you. It would also let you run multiple versions of UNIX
>>simultaneously. Very convenient if you're doing kernel or driver
>>development.
>Indeed. I'm currently trying to convince Netflix that the way to get the
>most performance out of a NUMA machine is to boot a different kernel on
>each NUMA domain. One way we might demo that is on a 4 domain system
>lock down 3 hypervisors and their guest OS to 3/4 of the NUMA domains
>and give the host kernel the 4th.
>
--
---
Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm