tjalfi

8 ms·

31.
by tjalfi 2y ago
I wouldn't want to support it, but similar things have been done before. Alexia Massalin's Synthesis[0] (pdf) operating system did JIT-like optimizations for system calls. Here's a LWN article[1] with a summary. Anyone who&#x
32.
by tjalfi 2y ago
I know more than I'd like to about this topic; I spent most of a decade supporting legal document management systems. Large law firms use document management systems[0] to store their documents. It's a really primitive VCS that in
33.
by tjalfi 2y ago
Micropayments failed because users hate them[0]. They would rather pay more for flat rate plans. Here's an excerpt from The Case Against Micropayments [1]. It's an old paper, but human behavior hasn't changed. Behavioral e
34.
by tjalfi 2y ago
You and Your Research by Richard Hamming https://www.cs.virginia.edu/~robins/YouAndYourResearch.html
35.
by tjalfi 2y ago
OS/2's Presentation Manager had 0,0 at the bottom-left corner of the monitor.
36.
The Back of the Envelope (1984) [pdf](seltzer.com)
38 points by tjalfi 2y ago|8 comments
37.
by tjalfi 3y ago
The blog entry Revisiting the Intel 432 [0] and the cited paper Performance Effects of Architectural Complexity in the Intel 432 [1] discuss the compiler issues. [0] https://bcantrill.dtrace.org/2008/07/18/r
38.
by tjalfi 3y ago
SHA was withdrawn after publication and replaced with a stronger version[0]. [0] https://en.wikipedia.org/wiki/SHA-1#Development
39.
by tjalfi 3y ago
I've seen accidental trigraphs such as ??! come up a few times in pre-ANSI codebases. Trigraphs are still used in EBCDIC codebases[0], but I wouldn't expect to see them anywhere else or in public code. [0] https://www
40.
by tjalfi 3y ago
Were they using IMS[0] or MUMPS[1]? [0] https://en.wikipedia.org/wiki/IBM_Information_Management_Sys... [1] https://en.wikipedia.org/wiki/MUMPS
41.
by tjalfi 3y ago
PRIMOS[0] serves as a counterexample; it used ASCII with the top bit set. [0] https://en.wikipedia.org/wiki/PRIMOS#Data_access
42.
by tjalfi 3y ago
You can use UI4ETW[0] to capture an event trace when the mouse freezes. You may need to install the Windows SDK or Visual Studio to interpret the results, though. [0] https://github.com/google/UIforETW
43.
by tjalfi 3y ago
Here's an article[0] with some information on Hotspot's bump allocators. [0] https://shipilev.net/jvm/anatomy-quarks/4-tlab-allocation/
44.
Always Bump Downwards (2019)(fitzgeraldnick.com)
99 points by tjalfi 3y ago|72 comments
45.
by tjalfi 3y ago
There's substantial bipartisan support for SLS and it has suppliers in all 50 states[0]. [0] https://www.planetary.org/articles/why-we-have-the-sls
46.
by tjalfi 3y ago
clang compiles all three of these functions to use max instructions ( https://godbolt.org/z/9z7hGfdhq ). #include <algorithm> using std::max; int max_array_func(int values[], size_t values_c
47.
by tjalfi 3y ago
F# requires code to be in dependency order. You can't refer to types unless the compiler has seen them.
48.
by tjalfi 3y ago
Contemporary: ° Yellowface by R.F. Kuang ° Big Swiss by Jen Beagin Thriller: ° Barbed Wire Heart by Tess Sharpe
49.
by tjalfi 3y ago
Barbed Wire Heart by Tess Sharpe is an excellent thriller.
50.
Important Optimizations to Apply in Your C++ Programs (2022) [video](youtube.com)
2 points by tjalfi 3y ago|0 comments
51.
by tjalfi 3y ago
Some of the Gemini goals such as ease of implementation, no user tracking or extensions, and a short specification (16 pages) are much easier with a new protocol.
52.
by tjalfi 3y ago
Sparc has register windows[0] and branch delay slots[1]. The former was made obsolete by graph-coloring register allocation[2] and the latter by smarter branch predictors. It's certainly possible to design aggressive Sparc implementati
53.
by tjalfi 3y ago
Alloy is available at https://www.funet.fi/pub/languages/alloy/
54.
An Algorithm for Structuring Flowgraphs (1977) [pdf](cs.tufts.edu)
58 points by tjalfi 3y ago|5 comments
55.
by tjalfi 3y ago
I'm not sure about assault, but Proposition 47[0] in 2014 substantially reduced the penalties for shoplifting, grand theft, forgery, fraud, and other crimes. Stealing under $950 is a misdemeanor regardless of how often someone does it.
56.
by tjalfi 3y ago
They gave up on it too. Internet Explorer was the last browser to support JPEG XR.
57.
by tjalfi 3y ago
I've also heard of teams that shut down the mainframe for an hour during a time change. It's an easy way to avoid application issues for a small amount of downtime.
58.
by tjalfi 3y ago
The Spark Ada safety critical subset is memory safe, but Ada isn't. It's possible to write a kernel in Spark, but hard to believe that you'd get buy-in from other kernel developers. Ada doesn't eliminate use after fre
59.
by tjalfi 3y ago
Vanguard's Chief Investment Officer said that HFTs are beneficial for them[0]. [0] https://www.sec.gov/comments/s7-02-10/s70210-122.pdf
60.
by tjalfi 3y ago
> Is it the same law firm that went with the 'offering to buy twitter and signing a purchase agreement was just a prank bro' defence? Yes. He was represented by Quinn Emanuel Urquhart & Sullivan and Skadden, Arps, Slate,

More ›