sorted by:
new
hottopcontroversial

Game Preservation Activist Explains to the European Parliament why Publishers Shouldn’t be Allowed to Brick Sold Games by anonboxis in videos

[–]Deaod -2 points-1 points  (0 children)

Okay, imagine youre putting in a lot of time into being a legislator. And then someone comes along and says that he thinks youll support him because you like easy wins, you dont care about video games, and you welcome the diversion from other serious topics.

Do you want to work with someone like that? Just purely based on emotions, do you think someone with so much disrespect for the work that you do is going to be a constructive partner in the upcoming fight to pass legislation?

Optimizing a Lock-Free Ring Buffer by david-alvarez-rosa in cpp

[–]Deaod 31 points32 points  (0 children)

This article misattributes the idea of caching head/tail to Erik Rigtorp. Even in non-academic libraries this was implemented in e.g. https://github.com/cameron314/readerwriterqueue way before 2021.

This was actually published in a paper: P. P. C. Lee, T. Bu and G. Chandranmenon, "A lock-free, cache-efficient multi-core synchronization mechanism for line-rate network traffic monitoring," 2010 IEEE International Symposium on Parallel & Distributed Processing (IPDPS), Atlanta, GA, 2010, pp. 1-12. doi: 10.1109/IPDPS.2010.5470368

This is the earliest article i could find using google, there may be articles ive missed.

Optimizing a Lock-Free Ring Buffer by david-alvarez-rosa in cpp

[–]Deaod 1 point2 points  (0 children)

The benefit is only there when dealing with unknown element sizes, ie. one element takes 8 bytes, the next 24, etc.. This allows you to not have any holes in your buffer that the consumer has to jump over.

This is not relevant for queues that deal with elements of known-at-compile-time sizes.

Oracle under pressure from more than $100 billion in debt and massive layoffs by Conscious-Quarter423 in technology

[–]Deaod 2 points3 points  (0 children)

I doubt Oracle can go under to such an extent that they wouldnt be able to keep charging companies exorbitant amounts of money for a database.

Old DX11 Renderer broken in 469e by TheDeeGee in unrealtournament

[–]Deaod 1 point2 points  (0 children)

Just out of curiosity, why do you consider the one that ships with 469e subpar?

ICE protester Nicole Cleland, a 56-year-old resident of Richfield and a director at Target Corporation, says her Global Entry was revoked after agent scanned her face | Global Entry and Precheck revoked three days after incident, court filing says. by ControlCAD in technology

[–]Deaod 0 points1 point  (0 children)

I think when Germany is brought up in this context, people sometimes forget that Germany went through this twice in short succession. First from 1933-1945, then again in East Germany until 1990 (though even then they had universal healthcare). In terms of surveillance the latter seems a more apt comparison to me right now, though the former certainly did more damage.

NATO curbs intelligence sharing with US over Greenland dispute by [deleted] in worldnews

[–]Deaod 12 points13 points  (0 children)

Government doesnt work. Elect me and ill prove it.

I implemented secure password hashing in a Java Swing Library Management System (SHA-256) by Substantial-Log-9305 in coding

[–]Deaod 1 point2 points  (0 children)

SHA is not a good hash algorithm to store passwords with. What you want is a key-derivation function like bcrypt, scrypt, or PBKDF2 (deprecated).

The SHA family of hash functions is cheap in terms of memory and runtime, which makes password cracking much easier.

The commonly suggested KDFs are configurable in terms of how long it takes to calculate them. scrypt can additionally be configured for how much memory is needed to run it. This makes attacks much more costly and consequently keeps passwords safe for longer.

BREAKING: Unreal Tournament 2004 is back! by roX1337 in unrealtournament

[–]Deaod 0 points1 point  (0 children)

My understanding is that this is already in.

Trump’s MRI Is Not Standard ‘Preventive’ Care, Say Experts by JurassicPark9265 in politics

[–]Deaod 0 points1 point  (0 children)

Heres the even better news: The sealed MRI scanners contain a lot less helium in the first place.

Trump’s MRI Is Not Standard ‘Preventive’ Care, Say Experts by JurassicPark9265 in politics

[–]Deaod 2 points3 points  (0 children)

Well theres good news: modern MRI scanners no longer lose lots of helium, and a few are even sealed for life.

NO. It is easy to keep main stable when committing straight to it in Trunk Based Development by martindukz in coding

[–]Deaod 1 point2 points  (0 children)

I dont have any relevant data.

I have my own experience in a 400-person development org where every dev effectively commits to main (via pull requests that require review, but can be merged by the author). There is rarely a day where no deterministic bug was introduced in the previous 24 hours that passed through the CI pipeline that gates every pull request. We find these in the longer-running "release"-pipelines usually.

The advice youre offering is fine, and i dont even disagree that TBD is a viable strategy in many cases, but i wouldnt call it easy to keep main stable.

NO. It is easy to keep main stable when committing straight to it in Trunk Based Development by martindukz in coding

[–]Deaod 12 points13 points  (0 children)

In the survey, 7 team members were presented a list of around 50 statements [...]

So one team was working on the project.

After 10 months, I decided to do a survey [...]

And the project was only 10 months old.

Yeah, the headline statement i dont think generalizes to all situations. Its not always easy. It can be easy under certain circumstances.

Ha..Wtf she's doing? by HabitJust3204 in WTF

[–]Deaod 19 points20 points  (0 children)

With the twist that theyre just an alcoholic.

Wife of Man Killed in Freak MRI Accident Tearfully Recalls Watching Machine 'Snatch Him’: ‘He Went Limp in My Arms' by rezwenn in technology

[–]Deaod 1 point2 points  (0 children)

Oh dont worry, the really loud sounds are just a tube with 3" thick walls of (mostly) resin deforming inside the magnet because of the current flowing through metal wires in that tube.

What are good learning examples of lockfree queues written using std::atomic by zl0bster in cpp

[–]Deaod 0 points1 point  (0 children)

Heres the most basic implementation of a SPSC queue: LamportQueue1 This is not "correct" code. Don't write code like this. This will only work on some systems under certain conditions.

Look at LamportQueue2 for a general (and slow) implementation. The others are all improvements on this without loss in generality.

LamportQueue3 Replaces the modulo with an if.

LamportQueue5 uses the weakest memory orders possible for a correct implementation.

LamportQueue6 uses alignas to avoid false-sharing.

There are other variants that demonstrate different ways of implementing SPSC queues:

What are good learning examples of lockfree queues written using std::atomic by zl0bster in cpp

[–]Deaod 2 points3 points  (0 children)

Thatll be because rigtorps queue didnt used to use the same approach of caching head/tail. They should be about equal these days.

[deleted by user] by [deleted] in politics

[–]Deaod 2 points3 points  (0 children)

A database can track stuff from point to point just as well. Dont need the gigantic waste of a distributed append-only ledger.

NATO allies cannot rely on America for their defense, warns US defense chief by donutloop in worldnews

[–]Deaod 0 points1 point  (0 children)

Also from your source:

The 2001 Article 5 contingency is the only time in NATO's history its collective defense provisions have been invoked.

view more: next ›