Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 1,232 posts.
Performance budgets are an essential but under-appreciated part of product success and team health. Most partners we work with are not aware of the real-world operating environment and make inappropriate technology choices as a result. We set a time budget of less than 5 seconds first-load Time-to-Interactive and less…
Firmware flash Samsung SSD or NVMe directly from Linux without needing broken Samsung ISO boot environment!
Visit the post for more.
How the Golang concurrent GC achieves low latencies in real-time systems: a visualization of the algorithm and an empirical comparison with other languages.
Monorepo performance can suffer due to the sheer number of files in your working directory. Git’s new builtin file system monitor makes it easy to speed up monorepo performance.
I worked on Rust part-time for several years at Mozilla. During that period I regularly summarized how the compiler’s performance had improved. For example: 2017-11-12 to 2019-07-24.
By that I mean a delay between receiving movement data from the mouse device and rendering the on-screen cursor. The lag of a Mac OS X cursor is at least twice bigger than Windows’ cursor and yes, a human eye can surely notice that.
"Emails show [Chris Cristie]'s aides did plan bridge gridlock," says Salon . To a transportation engineer, the aides are innocent: bridges can't have gridlock. While we often say "gridlock" to mean "bad traffic," it has a technical meaning.
Not all instructions on modern processors cost the same. Additions and subtractions are cheaper than multiplications which are themselves cheaper than divisions. For this reason, compilers frequently replace division instructions by multiplications. Roughly speaking, it works in this manner. Suppose that you want to…
Almost nobody understands how traceroute works. Worse, it's not a real tool
Redis is a fast single-threaded data structure server, commonly used as a cache, scratchpad, queue, or coordination mechanism between distributed applications. It offers operations over a broad array of datatypes , including binary blobs, lists, sets, sorted sets, maps, geohashes, counters, channels, streams, and…
Often programmers have assumptions that turn out, to their surprise, to be invalid. From my experience this happens a lot. Every API, technology or system can be abused beyond its limits and break in a miserable way
Explore common Linux virtual network interfaces, including Bridge, Bonded interface, VLAN, VXLAN, MACVLAN, IPVLAN, MACVTAP/IPVTAP, and more. Learn how to create and use them effectively for your
This year, the YJIT team has been working hard to improve and optimize YJIT. We’re proud to say that the version of YJIT to be included with Ruby 3.3 is leaps and bounds ahead of Ruby 3.2’s. It provides better performance across the board, while also warming up faster and using less memory. The 3.3 release is also…
Databases are global, shared, mutable state. That’s the way it has been since the 1960s, and no amount of NoSQL has changed that. However, most self-respecting developers have got rid of mutable global variables in their code long ago. So why do we tolerate databases as they are?
Tim Kadlec writes about performance, product management, and the web.
HFS+ is a terribly old filesystem with serious flaws. I sincerely hope that Apple comes with an update of the filesystem for WWDC 2015. After all they have been working on Swift for the past 4 years and we have just learned about it last week. HFS+ is seriously old HFS+ was released in 1998, in the era of Mac OS…
Wayland is all the rage those days. Distributions left and right switch to it, many readers of my previous article on writing a X11 GUI from scratch in x86_64 assembly asked for a follow-up article about Wayland, and I now run Wayland on my desktop. So here we go, let's write a (very simple) GUI program with Wayland…
Apps on Fly.io all get their own routable IPv4 addresses. Here's what that costs us.
For Claude to learn from experience, it has to decide what’s worth remembering before it knows what’s next. Here’s how “dreaming” helps it organize memory and correct mistakes.
By bert hubert / bert@hubertnet.nl This post is an excerpt of a far longer post on Galileo, its structures and the cause of the outage. Here we’ll only focus on the outage - the potential underlying reasons behind it are described in the full article. Since the week-long outage in July I’ve been fascinated by Galileo…
Go has good support for calling into assembly, and a lot of the fast cryptographic code in the stdlib is carefully optimized assembly, bringing speedups of over 20 times.
There's just one small problem: The way POSIX has defined close(2) is completely and utterly broken.
