kev009

46 ms·

631.
by kev009 8y ago
It doesn't affect FreeBSD. https://lwn.net/Articles/752388/
632.
by kev009 8y ago
Knowing how bad most telco networks are operated, I blithely wonder if maybe they were using stuff in 1./8 as PNI or some other privileged internal net and are going through some oh shit moments. Hanlon's razor as lots of DNS serv
633.
by kev009 9y ago
By David's postulation, even the native assembly language for the CPU is not low level. See my other comment on the parent topic for justification.
634.
by kev009 9y ago
The meta point from the article is that this is as much a hardware problem as it is a language or developer one. An arms race was waged to create CPUs that are very effective in running sequential programs; to the point that what they pres
635.
by kev009 9y ago
Anyone know of any deep dives on new kernel/lib stuff in this release? MS has been doing good work on their network stack but it only occasionally is editorialised like this https://blogs.technet.microsoft.com/networki
636.
by kev009 9y ago
Are there any plausible moves to earn mid 100s in some non-tech industry without going through re-schooling?
637.
by kev009 9y ago
The arrival time of PD is going to be minutes to tens of minutes in those cities depending on the severity gleaned by dispatch, and only from the time of _notification_ not the start of an incident. I don't think it's unreasonable
638.
by kev009 9y ago
This was a pretty lame journalism reach and miss in totality but somehow the thought of actually retrieving Zuck's trash made me giggle with delight. A garbage truck is pretty inexpensive at auction (i.e. Iron Planet). The op could be
639.
by kev009 9y ago
I'm referencing the abilities of F500 companies to sustain OS development. OS X has roots in mach, and some BSD, but to call it either one is trivializing the amount of work that has gone on.
640.
by kev009 9y ago
What do you make of, for instance, OS X or VxWorks?
641.
by kev009 9y ago
I think this is some kind of psychological projection/rationalization because the statement "Having been well and truly spoiled by illumos threading (and especially illumos kernel threads)" is actually quite laughable.
642.
by kev009 9y ago
It may be equal parts GPL avoidance. Broadcom switch ASIC PDKs are a kind of hybrid kernel and userland application with no legacy reason, so I assume it is just arbitrarily about working around a restrictive license.
643.
by kev009 9y ago
see i.e. https://www.servethehome.com/gigabyte-thunderxstation-using-... for public info "At STH we are working with Gigabyte and Cavium and will share more about the ThunderX2 architecture as we are given the go-ahead
644.
by kev009 9y ago
Email supermicro and ask about pricing, they are trying to gauge interest currently.
645.
by kev009 9y ago
I have my own Cavium rep. Show me a real CPU, board and worthwhile sheet metal (i.e 10+ nvme) I can buy in volume because you might know something he doesn't and I'd be happy to eval it.
646.
by kev009 9y ago
AVX512 will severely clock throttle an intel chip. I only want to see real world tests on a workload when comparing the two.
647.
by kev009 9y ago
You can't actually buy TX2. I don't know about market availability of Amberwing either (if you know please let me know). There is an abundance of arm stuff in the embedded space where it is king, and it's true you can pick
648.
by kev009 9y ago
Server cost is dominated by storage at the moment. DRAM is also a large static cost with little negotiation room. The cost of a P9 and motherboard is a small subset of a system build and below the price of Skylake for me.
649.
by kev009 9y ago
Not any worse than the past decade of arm server "promise" Bootstrapping an alt arch is hard, it really needs a loss leader OR a significant performance delta (which they now have with accelerator workloads). Google deploying it
650.
by kev009 9y ago
Note that the other DIMMs aren't completely arbitrary, they are buffered and require Centaur controllers to allow for much greater capacity and bandwidth (at increased latency). But for scale out workloads the on chip DDR controllers
651.
by kev009 9y ago
I think that's because in a full EE/CE program you would have some earlier course that covered that based on a book like Sedra/Smith "Microelectronics" (but disclosure, I was CS so most my EE is self acquired)
652.
by kev009 9y ago
Yes when I say cooperative I mean nice processes are opting in to being told what and when to do something (change heap size, run a light or heavy collection, etc) apart from their own internal view of affairs.
653.
by kev009 9y ago
Yeah I see that in the post, but to extrapolate my comment, I mean something running in a separate address space that coordinates all garbage collectors across processes/containers. It would necessarily have to be cooperative.
654.
by kev009 9y ago
I don't know the precise answer off hand, but probably in an OS dependent code path in OpenJDK. I know for instance OpenJDK uses the global sysctl API to get total RAM on a FreeBSD machine. To use jails as multi-tenancy system you th
655.
by kev009 9y ago
You are effectively correct, and to take it a bit further the "VM" in JVM does mean the same thing as the VM in VMWare even if it feels a lot different in practice. If all your dependencies are JVM based and bundled into a JAR&#x
656.
by kev009 9y ago
It would be nice to have some kind of cooperative API for runtimes like Java, Go etc to where the OS or container manager can provide watermark hints for the heap size and when to run collections.
657.
by kev009 9y ago
Yeah imagine some mfgs saying enough is enough and Samsung and LG teaming up on a transition to WebOS across budget and flagship phones. They'd have enough power to gain meaningful presence in some countries. I think you'd proba
658.
by kev009 9y ago
So I guess this is to mesh with the new HW support from nvidia and AMD? Because ray tracing wasn't usually the providence of GPUs. https://www.anandtech.com/show/12546/nvidia-unveils-rtx-tech... https:&#x2F
659.
by kev009 9y ago
I really liked the HP tablet with WebOS, got it for $99 when they blew them out and it was useful for a couple years and then the web browser became too obsolete. It would be interesting if some kind of political rift propelled WebOS back i
660.
by kev009 9y ago
That's basically what human driving is though, no? We consciously and unconsciously take our attention off the task all the time. It's not possible to drive fully alert of surroundings all the time and at least part of the time

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