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The most popular blog posts about systems & performance on Hacker News. 4,389 posts.
Video lectureMutator, Allocator, CollectorMemory blockAllocator interfaceMemory alignmentMemory mappingFreeing the objectsBlocks reuseFirst-fit searchAssignmentsNext-fit searchBest-fit searchBlocks splittingBlocks coalescingExplicit Free-listSegregated-list searchOptimizing the storageCustom sbrkConclusion This is the…
The papers over the next few weeks will be from (or related to) research from VLDB 2021 - on the horizon is one of my favorite systems conferences SOSP . As always, feel free to reach out on Twitter with feedback or suggestions about papers to read! These paper reviews can be delivered weekly to your inbox , or you…
DEFLATE is a relatively slow compression algorithm from 1991, which (along with its wrapper format, zlib) is incredibly widely used, for example in the PNG, Zip and Gzip file formats and the HTTP, …
Overview Edit: this post was discussed on hacker news Some of the comments contained valuable reviews of the C code listed below. I’ve appended some edits after the original listing. I’ve been working quite with files and file systems on Linux recently. Mostly from the vantage point of either a shell or a python…
Don't "let it crash". Let it heal.
Using NixOS for a more tractable computing setup.
My PalmOS port is making progress on a desktop computer, with keyboard, mouse and a 1920×1080 monitor for display. While that was interesting, I wanted to try a different form factor, one tha…
View the code on GitHub
I recently came home to visit with family, but right now as I write this, it's 1:00am and I'm running memtest86+ by myself in the basement.
Here’s a sentence I find myself saying several times a week: …or we could just box it. There’s two remarkable things about this sentence. The first, is that the advice is very rarely heeded, and in...
Covers two Linux primitives that are not namespaced by the current set of Linux kernel namespaces.
UPDATE: Oracle officially released memcached daemon plugin that talks with InnoDB. I'm glad to see that NoSQL+MySQL has become an official ...
Paul Khuong's personal blog. Some Lisp, some optimisation, mathematical or computer.
Recently I did a userspace implementation of the Host Identity Protokoll (HIPv2, RFC 7401) with the upcoming Diet Exchange (HIP DEX, IETF draft 6) . Doing so, I've learnt a lot about raw socktet programing under Linux and here I want to share a few things with you.
This post is about building an FPGA based networked key-value-store in the functional hardware description language Clash. I’ll describe my FPGA-tailored hashtable design, the testing framework I built for it, and its performance and resource usage.
Durable execution with just postgres.
This is a complete tutorial for understanding the basics of Linux ext4 file system.
There are roughly ten thousand bajillion (to the nearest bajillion) merchants registered with Stripe. We recently finished a Very Big Migration of Large Amounts Of Data between several database tables for every single one of them, without losing any of it, without any downtime, mis-reads or mis-writes, whilst running…
Key Options Getting Information About the Network User Information Commands and Processes Files and Directories Advanced lsof is the sysadmin/security über-tool
We made a YouTube video showing how NonBioS can deploy OpenClaw on a fresh Linux VM automatically - zero human intervention, about 7 minutes start to finish.
