kev009

61 ms·

721.
by kev009 9y ago
I believe the fundamental issue in all of the technology industry is tying people that know how to take money and turn it into new technology that begets more money. There is tremendous room in semiconductors to do so. In terms of selecti
722.
by kev009 9y ago
It's not controversial just a naive juxtaposition of computer science and what most of us do which is yeoman programming. Do people work through Calculus textbooks? Are textbooks a reasonable price? These are low volume prints; it t
723.
by kev009 9y ago
Not the way I see them used. HBase is quite versatile, Facebook's HydraBase is a good example of doing things people think they need Cassandra for https://code.facebook.com/posts/321111638043166/hydrabase-th.
724.
by kev009 9y ago
I am always a bit surprised that HBase/Phoenix aren't more widely celebrated in the scale out database scene vs Cassandra, MongoDB, etc but a lot of people designing new systems as users of these DB systems have NFC what they are
725.
by kev009 9y ago
It's hard to make sense of what Intel are doing in the ucode since communication has been so poor, but "LFENCE terminates all previous instructions" has been variously reported, and there are rumblings that RET or conditional
726.
by kev009 9y ago
The first would set a strange precedent without some kind of good faith amends by intel, and so far they have signaled apathetic callousness. I think the legal implications haven't even begun to arise yet because large users are still
727.
by kev009 9y ago
What he said isn't wrong, this new ucode changes fencing and branching prediction semantics regardless of using the instructions added for spectre. The problem is varied. While most people should run the new ucode and pending kernel a
728.
by kev009 9y ago
POWER has been better performing than intel since basically 1990, though intel's tick/tock cadence and trading blows in fab tech have kept things interesting. That shouldn't be surprising since POWER is ultra focused on the
729.
by kev009 9y ago
I vaguely remember some threads from last decade where Linus trashed PowerPC and s390 TLBs. I wish I could find them and reread with this in mind.
730.
by kev009 9y ago
Chisel has better type safety than Verilog yet it's much less verbose than VHDL. Verilog is the industrial language of choice at most ASIC shops, and there are things like VerilogAMS (mixed signal) and SystemVerilog (validation) that
731.
by kev009 9y ago
I wonder how little that has to do with WinNT (which is actually a fabulous kernel), and how much has to do with Accenture. When I saw Accenture as the developer, alarm bells went off.
732.
by kev009 9y ago
The easiest way to see authenticity is to seek out producers doing shows. They may play a lot of their own music as well as a curated set of other music. There's an old interview of BT in the 1990s where he thoroughly debunks that he
733.
by kev009 9y ago
He did adequately disclose that the OS was swapped out while pgsql and settings were held steady. Adding in more arbitrary benchmarks like FIO wont really clarify pgsql performance if that is the desired investigation. Instead, active ben
734.
Emulating Nvidia GPUs(youtube.com)
3 points by kev009 9y ago|0 comments
735.
by kev009 9y ago
There's an associated text version of a lot of the main ideas in http://www2.marist.edu/~mvmuajs/vmoutlook/ but the video is actually quite funny even if you don't know what VM is. Reminds me of Bryan C
736.
A Strategic Point of View for VM(archive.org)
2 points by kev009 9y ago|1 comments
737.
by kev009 9y ago
That's chic rhetoric to appeal to engineers that can see the technical value they snubbed intentionally and accidentally in a variety of acquisitions, and just comical to the layman as an extremest view of Ellison's galactic ego q
738.
by kev009 9y ago
vtune is first class but most people will be using perf on linux or pmcstat on freebsd so you do need to crossreference a doc like this occasionally when you want to probe a new counter to look for bottlenecks. pcm is also quite nice to mon
739.
by kev009 9y ago
There is a $400 4 core that Raptor Engineering is using in the Talos II. The top bin SO is only $5k, go look at Skylake pricing. This is dirt cheap. Hint, without specifics due to NDA, go talk to Supermicro sales directly about POWER syst
740.
by kev009 9y ago
All the technical critique seems fair but it seemed like they (both as an individual and as a company) were a first time contributor and no outreach was really done to pull them in further. I guess LineRate imploded within F5 so there coul
741.
by kev009 9y ago
F5/LineRate did it but it got NACKed in a fairly underhanded and unfortunate way on the mailing lists :/ https://github.com/Seb-LineRate/freebsd/commits/seb/stable-1...
742.
by kev009 9y ago
Yeah you're right the curve was entirely driven by the world wars and cold war. It's not just purse strings, but collective purpose, need, and oversight that drove the curve.
743.
by kev009 9y ago
Thanks, I win the prize :). The corporations you list have little to do with supercomputing. I recommend the book "The Supermen" about Seymour Cray, National Labs, etc and that will give you the necessary context to understand.
744.
by kev009 9y ago
I recommend the book "The Supermen" about Seymour Cray, National Labs, etc and that will give you the necessary context to understand. Bottom line, it didn't used to be this way and supercomputing degenerates to lowest commo
745.
by kev009 9y ago
There are a lot of people gloating about this on Twitter and elsewhere, but to me it just seems sad; the ultimate morass of monoculture and an endgame with no competition. An ode to "the OS layer no longer matters, don't bother p
746.
by kev009 9y ago
IBM has started to wise up to the necessity of what amounts to "hacker culture" in keeping products relevant, desirable to work on, and secure. I'm not sure what it would take to get that kind of openness where a hobbyist co
747.
by kev009 9y ago
When I was in college, I did one in C https://github.com/kev009/craftd . Looking back, there are trivial concurrency bugs and some critical arch flaws that are somewhat embarrassing and would be easy to fix now. But w
748.
by kev009 9y ago
Going back to the intel FUD paper, if you consider volume shipment as success as in their document, uboot looking thing with FDTs are the most successful paradigm by orders of magnitude. The kind of systems using FDTs aren't going to s
749.
by kev009 9y ago
That is almost entirely FUD, every Mac before the intel switch had OpenFirmware. FCode was elegant in that it is cross platform, and the option ROMs can work across multiple uarchs. The only valid point is that Forth is obscure. I don&#x
750.
by kev009 9y ago
UEFI is a great example of second system syndrome. In the BIOS world, more featured boot loaders were chained in early (think pxelinux, grub, *BSD loaders etc) so even though it was primitive it wasn't the typical UX. UEFI is almost

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