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The most popular blog posts about systems & performance on Hacker News. 6,942 posts.
My colleague Mingxue Zhao sent me a guest post designed to make sure that you are aware of an important time / clock issue. Note: This post was first published on May 18, 2015. We made some important additions and corrections on May 25, 2015. — Jeff; The International Earth Rotation and Reference Systems (IERS) […]
Differences between CloudKit and iCloud Drive, what each does, and how it works. New version of Cirrus to test and check iCloud function.
Since my previous blog entry about JIT compiler for PostgreSQL, sadly not much happened due to a lack of time, but still some things were done (biggest improvement was the port to ARM64, a few optimizations, implementing more opcodes…). But I am often asking myself how to really beat the interpreter… And on “modern”…
It is something we take for granted every time we run a .NET program, but it turns out that loading a Type or class is a fairly complex process.
A description of some of the recent changes to do allocations on the stack instead of the heap.
Today, Red Hat has introduced a new Linux development model into the CentOS community: CentOS Stream, a developer-forward, faster-moving distribution that helps community members, partners and others take full advantage of open innovation.
I had a student (Fred Smith) who worked on extensions to Popcorn (the predecessor to Cyclone) that supported run-time code generation in a lightweight fashion. Here’s a paper describing part of the system: https://ecommons.cornell.edu/handle/1813/5812 . Fred’s thesis had a bunch more.
In 1985, Intel introduced the groundbreaking 386 processor, the first 32-bit processor in the x86 architecture. To improve performance, the ...
Welcome to Waqas' blog
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…
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
Intel Processor Trace is a hardware technology that can record all program execution flow along with timing information accurate to around 30ns. As far as I ...
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, …
Martin Sebor looks at C string handling functions used to copy and concatenate strings and examines ways to improve their efficiency.
A couple of months ago Finnair announced the launch of the new A350 aircraft, making it the first European airline to start operating the model. We are
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…
YJIT’s ability to improve performance by adapting to run-time behavior can increase the speed of our code in a way that dropping down to C can’t. As such, I think we should reconsider the common wisdom that “rewriting our Ruby in C” is the ideal path to performance optimization and take a serious look at “rewriting…
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.
