jstarks

13 ms·

91.
by jstarks 10y ago
This is really surprising. I thought that part of Rust's pitch was that the explicit ownership tracking made optimizations much easier. Is there a bug filed to fix this?
92.
Using C++ Resumable Functions with libuv(blogs.msdn.microsoft.com)
4 points by jstarks 10y ago|0 comments
93.
by jstarks 10y ago
I helped work on the converter. That's correct; Pro is sufficient.
94.
by jstarks 10y ago
Who is the audience for that article? It doesn't seem designed to convince someone who doesn't already feel passionately about cyclists' rights.
95.
by jstarks 10y ago
Right now we're focused on server workloads only.
96.
by jstarks 10y ago
This is the "host networking service", which is a new service that manages VM and container networking on Windows.
97.
by jstarks 10y ago
It is likely that the .NET base class libraries block NUL and the other special file names that Win32 supports. This would explain why PowerShell (which is written in C#) behaves differently from cmd (which is written in C).
98.
by jstarks 10y ago
I think it's apparent that we write in C because of network effects and not because it's the best tool for the job. It's great that people like you can handle it, but I'd much rather write in a language that keeps my stu
99.
by jstarks 10y ago
In Windows 10 you can configure your Hyper-V VM to support nested virtualization, which will allow you to do this.
100.
by jstarks 10y ago
Atomic memory accesses do not require touching DRAM in the general case. The cost of an atomic operation on a modern Intel CPU is closer to 20 cycles than 100. You will see higher costs if you have two processors trying to access the same s
101.
by jstarks 10y ago
Vote here: https://wpdev.uservoice.com/forums/266908-command-prompt-con... . Currently we do "support" CP65001 in the console, but things break if you enable it. One of the problems, for example, is that .NET
102.
by jstarks 11y ago
I wonder if it works under the new Linux subsystem.
103.
by jstarks 11y ago
Performance is always important. That's really been the main point of DJB's work -- crypto isn't widely used because it is too slow, so let's build fast crypto.
104.
by jstarks 11y ago
I think go build -i does the same without putting the result in the bin dir.
105.
by jstarks 11y ago
Very impressive. I didn't know tokens referenced their session by ID instead of handle; this seems like the most serious of the architectural errors here. I wonder if it can be fixed.
106.
by jstarks 11y ago
I decided to learn something today and got this working :). I sent a PR on GitHub.
107.
by jstarks 11y ago
I think you have to use pointer events to detect the eraser -- e.button should be 5 for pointerdown events. I'm not sure how hard it is to use pointer events when available (currently only on IE/Edge, it looks like).
108.
by jstarks 11y ago
Cool. This works pretty well with a Surface pen. The only limitation seems to be that it doesn't recognize the eraser as distinct from the tip; it would be neat if the eraser would draw the transparent color.
109.
by jstarks 11y ago
You will never in your lifetime find a collision if you use v4 UUIDs generated from a CPRNG such as /dev/urandom. No one will.
110.
by jstarks 11y ago
Do you have measurements that show that urandom is slower than a SHA1 hash on Linux? I don't have a good sense for how fast/slow the read call is (obviously you can cache the fd across reads). Also, I can't find references to
111.
by jstarks 11y ago
Do you have any resources demonstrating that JSON parsing in Go is slow?
112.
by jstarks 12y ago
Even if you could figure out the worst-case timings and how to simulate them in all cases, the performance would be unacceptable. The usual operations that are data-dependent in crypto algorithms are mov with a data-dependent address, and c
113.
by jstarks 12y ago
The author's conclusion that side channel attacks are unpreventable because x86 instructions execute in a variable amount of time does not follow. Side channel attacks that rely on variable instruction timing rely on _content-dependent