stephenjudkins

6 ms·

1.
by stephenjudkins 7y ago
No. Most NATs handle UDP sessions trivially as long as one end of the connection is not behind a NAT itself. Tricks like UDP hole punching are necessary only between two endpoints that are both behind NATs.
2.
The Polygons of Another World(fabiensanglard.net)
8 points by stephenjudkins 7y ago|0 comments
3.
by stephenjudkins 8y ago
One of the authors is known for heavily cherry-picking his facts, making some pretty extreme and outrageous assumptions, and suing fellow academic critics who point this out. Caveat lector.
4.
by stephenjudkins 8y ago
People are excited for RISC-V instead of Raspberry Pi's ARM.
5.
by stephenjudkins 9y ago
It is explicitly advertised on Adafruit as a level shifter https://www.adafruit.com/product/1787
6.
by stephenjudkins 11y ago
There is Blu-ray compatible archival disk format that the manufacturers claim will last 1000 years: https://en.wikipedia.org/wiki/M-DISC I don't know how this claim could be verified in our lifetimes.
7.
by stephenjudkins 11y ago
Here's one theory: https://storagemojo.com/2014/04/25/amazons-glacier-secret-bd... and here's the HN thread: https://news.ycombinator.com/item?id=7647571 Facebook uses Blu-ray discs
8.
HTTP/2 Is Done(mnot.net)
437 points by stephenjudkins 12y ago|136 comments
9.
by stephenjudkins 12y ago
parboiled2 [ https://github.com/sirthias/parboiled2 ] offers pretty much everything the built-in parser combinators do, but with fewer bugs and vastly improved performance. Since both use PEG grammars, it should be strai
10.
by stephenjudkins 13y ago
It's pretty simple to wire up a 24VAC thermostat to control 120V power. Purchase a transformer [ http://www.amazon.com/Honeywell-AT140A1000-40Va-120V-Transfo... ] and a 24VAC relay [ http://www.amazon.com/
11.
Software projects have an inherent bias towards unpredictability(gist.io)
53 points by stephenjudkins 13y ago|17 comments
12.
Programming and Reasoning with Algebraic Effects and Dependent Types(cs.st-andrews.ac.uk)
2 points by stephenjudkins 13y ago|0 comments
13.
Spire - Powerful new number types and numeric abstractions for Scala(github.com)
3 points by stephenjudkins 14y ago|0 comments
14.
by stephenjudkins 14y ago
By comparison, Apple just posted $8.22 billion of net income. [ http://www.nytimes.com/2012/10/26/technology/apple-profits-r... ]. Approximately $5.1B of Samsung's profits came from their phones; this is despite Samsung being an extremely d
15.
Scala 2.10.0 RC1 released(scala-lang.org)
12 points by stephenjudkins 14y ago|0 comments
16.
by stephenjudkins 14y ago
If you're curious how this handles memory management--the largest impedance mismatch between Java and Objective-C--see http://code.google.com/p/j2objc/wiki/MemoryManagement . The preferred method, for iOS apps at least, seems to be use ref
17.
by stephenjudkins 14y ago
This is probably meaningless for most developers: it is only going to be made available "for use in development, qualification, and testing". Further, there's no information on what license this will be released under. It's a shame, but giv
18.
Azul JVM Now Available For Developers of Open Source Applications(azulsystems.com)
25 points by stephenjudkins 14y ago|10 comments
19.
by stephenjudkins 14y ago
http://nixos.org/nix/ summarizes some of the advantages of this approach. To summarize, it promises to be fundamentally safer and more flexible than traditional package managers. Package management, IMO, is an area where a "purely functio
20.
by stephenjudkins 14y ago
I'm surprised he didn't mention typeclasses as a solution to this general problem. In many cases it's an unambiguously better solution than inheritance. A particular strength is that typeclasses can be easily defined or overridden at call-s
21.
by stephenjudkins 15y ago
This will vary between 32-bit and 64-bit environments. My understanding is that the vastly larger address in 64-bit environments greatly mitigates the chance that data will be mistaken as pointers. As far as crafting input to match allocate
22.
Managed dependencies in Scala using Git(asoftsea.tumblr.com)
2 points by stephenjudkins 15y ago|0 comments
23.
by stephenjudkins 15y ago
This is the largest practical issue I've had with developing a Scala project. One major cause of the problem seems to be that Scala is stuck with the "precompiled bytecode in JARs" model of software distribution; while this may be appropria
24.
by stephenjudkins 15y ago
Finagle is a great library. We were able to pretty quickly write a HTTP load-testing tool; features like failover and retries give the impression that it's a battle-tested library. However, like all the Twitter Scala libraries, it's current
25.
Macro vs. Micro Optimisation(suereth.blogspot.com)
6 points by stephenjudkins 15y ago|0 comments
26.
by stephenjudkins 15y ago
This is an largely vapid and meaningless prediction by someone who doesn't demonstrate anything but the most superficial knowledge of the microprocessor industry. Perhaps he knows something we don't, but as far as I can tell he's only extra
27.
by stephenjudkins 15y ago
Taken directly from the page I linked from above: "Note that if W + R > ReplicationFactor, where W is the number of nodes to block for on write, and R the number to block for on reads, you will have strongly consistent behavior; that is
28.
by stephenjudkins 15y ago
This is false. Cassandra can offer any level of consistency you desire, on a per-operation basis. See the "ConsistencyLevel" section of http://wiki.apache.org/cassandra/API . The tradeoffs of the CAP theorem, of course, apply. But if you w
29.
by stephenjudkins 15y ago
I mostly agree with you. The likely situation is that the US will pay down its debt through a combination of spending cuts and tax hikes. But there is no doubt that the tax hikes will be substantial. I believe we're in a pretty poisonous po
30.
by stephenjudkins 15y ago
I'm hesitant to wade into this debate, but this is a pretty sophistic argument, for a few reasons: * He largely ignores the potential for a catastrophic financial collapse in 2008-2009. At the time, pretty much everyone agreed that stopping

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