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The most popular blog posts about systems & performance on Hacker News. 6,943 posts.
This is exciting news, there is a fork of Qemu that has workable Itanium Merced emulation, and it’s good enough to run Windows XP/2003! Enter Malte Kuhlmann ‘s Qemu fork of syunnPC ‘s AI Itanium infused Qemu fork .
A blog by and for database architects.
TL;DR; We had performance spikes, which we eased with some insane use of struct s. History For a while now, we had been seeing a probl...
Note: I also posted a separate review of some A2 'Application Performance' class cards, see this post: A2-class microSD cards offer no better performance for the Raspberry Pi. As a part-time tinkerer and full-time developer, I have been fascinated by single board computers (SBCs) since the first Raspberry Pi was…
Synchronizing threads at a lower level.
A few weeks back I got a note on Bluesky, linking me to a website offering a free computer. The owner was in Cambridge, not far from me, and the computer was an HP 9000/300 Series - a Model 340, specifically.
Yet another proprietary tech titan turns to the free OpenBSD operating system as their source of innovation in the networking and security ...
Why and how I migrated from distributed postgres to distributed sqlite on kentcdodds.com
r/PBSOD is a fun subreddit all about posting pictures of broken kiosks and information/entertainment systems in public. It stands for Public Blue Screen of Death which is a Windowsism but Linux systems are posted there too. If you spend enough time scrolling, you might notice two things: There’s a scary number of…
Posted by Mark Brand, Exploit Technique Archaeologist.IntroductionAfter discovering a collection ...
A flash of intuition while trying to find a way to lend brian d foy a hand in his search for excellent numbers helped me reduce run time by 95 percent.
Something I didn't understand for a while is that the process of turning row-oriented data into column-oriented data isn't a totally bespoke, foreign concept...
Recently, we've been working to scale Sourcegraph cloud's index to 1 million open source repositories and beyond. Part of that effort has been reducing the RAM usage for the Zoekt (pronounced "zooked") servers responsible for handling most of our code searches.
How to accurately measure latency on Linux
Model minimalistically Start from a tiny core, and always keep a working model as you extend. Your default should be omission. Add a compone...
Even though we often hear terms like L1, L2, cache block size, etc., most programmers have a limited understanding of what cache really is. This is a beginner-friendly primer on how cache works.
I'm happy to announce the release of Sortix 1.0. This is the first self-hosting and installable release.
I often need to launch a program in the terminal in a retry loop. Maybe because it's flaky, or because it tries to contact a remote service that is not available. A few scenarios:
Windows 98 runs surprisingly well in QEMU via UTM SE, but it requires some care in setting it up. It’s a great way to run old 90s Windows and DOS software on your iPad (and Mac too, though you have… Continue reading →
In the era of big data and AI, many data-intensive applications exhibit requirements that cannot be satisfied by traditional batch processing models. Streaming applications, such as click stream analytics , IoT data processing, network monitoring , or financial fraud detection , must support high processing rates…
My previous AMD Based FreeBSD Desktop is still up and running – it will now be my kids computer … so I needed a new one … but not a bigger one :) I spent way too much time finding…
Introduction An obscure quirk of the /proc/*/mem pseudofile is its “punch through” semantics. Writes performed through this file will succeed even if the destination virtual memory is marked unwritable. In fact, this behavior is intentional and actively used by projects such as the Julia JIT compiler and rr debugger…
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