From: lm@mcvoy.com (Larry McVoy)
Subject: [TUHS] UNIX on S/370
Date: Mon, 20 Nov 2017 11:59:40 -0800 [thread overview]
Message-ID: <20171120195940.GL9146@mcvoy.com> (raw)
In-Reply-To: <51d71c07-ca95-b6b4-2907-a21814c6da1e@kilonet.net>
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
next prev parent reply other threads:[~2017-11-20 19:59 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-20 16:05 Noel Chiappa
2017-11-20 16:37 ` Clem Cole
2017-11-20 16:47 ` Charles H Sauer
2017-11-20 17:44 ` Toby Thain
2017-11-20 19:07 ` Paul Winalski
2017-11-20 19:10 ` Larry McVoy
2017-11-20 19:36 ` Warner Losh
2017-11-20 19:36 ` Larry McVoy
2017-11-20 19:39 ` Larry McVoy
2017-11-20 19:56 ` Arthur Krewat
2017-11-20 19:59 ` Larry McVoy [this message]
2017-11-20 19:27 ` arnold
2017-11-20 19:29 ` Larry McVoy
2017-11-20 22:56 ` Michael Parson
2017-11-20 23:23 ` Larry McVoy
-- strict thread matches above, loose matches on Subject: below --
2017-11-22 15:38 Noel Chiappa
2017-11-28 0:13 ` Kevin Bowling
2017-11-21 2:56 Noel Chiappa
2017-11-21 3:15 ` Ron Natalie
2017-11-21 3:51 ` Larry McVoy
2017-11-21 5:14 ` Warner Losh
2017-11-21 5:20 ` Larry McVoy
2017-11-20 0:57 Nemo
2017-11-20 1:01 ` Ronald Natalie
2017-11-20 1:06 ` Dave Horsfall
2017-11-20 3:50 ` arnold
2017-11-20 15:23 ` Clem Cole
2017-11-20 16:03 ` ron minnich
2017-11-20 16:31 ` Clem Cole
2017-11-20 19:44 ` Paul Winalski
2017-11-20 19:56 ` Larry McVoy
2017-11-20 23:43 ` Ron Natalie
2017-11-20 23:45 ` Larry McVoy
2017-11-20 23:49 ` Ron Natalie
[not found] ` <CAC20D2N=aBhdON1YqHH57ZG-TmC62yWGF4_=HK5Gp2XwdbHkyQ@mail.gmail.com>
2017-11-21 2:41 ` Larry McVoy
2017-11-29 22:42 ` Dave Horsfall
2017-11-29 22:55 ` ron minnich
2017-11-21 1:15 ` Ron Natalie
2017-11-21 3:29 ` Grant Taylor
2017-11-21 3:40 ` Ron Natalie
2017-11-21 3:46 ` Grant Taylor
2017-11-21 8:09 ` arnold
2017-11-21 16:49 ` Paul Winalski
2017-11-21 4:34 ` Clem cole
2017-11-21 5:42 ` Grant Taylor
2017-11-21 12:00 ` Ron Natalie
2017-11-21 13:51 ` Clem Cole
2017-11-21 14:59 ` Larry McVoy
2017-11-21 17:06 ` Clem Cole
2017-11-21 17:23 ` Clem Cole
2017-11-21 18:29 ` Larry McVoy
2017-11-21 19:10 ` Clem Cole
2017-11-21 15:40 ` Ron Natalie
2017-11-21 15:45 ` Larry McVoy
2017-11-21 13:24 ` Clem Cole
2017-11-22 1:33 ` Kevin Bowling
2017-11-22 6:35 ` Wesley Parish
2017-11-22 9:38 ` Kevin Bowling
2017-11-22 13:40 ` Clem Cole
2017-11-22 14:09 ` Ron Natalie
2017-11-22 13:51 ` Clem Cole
2017-11-22 14:04 ` Ron Natalie
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