811
Why UPS Trucks Rarely Turn Left
UPS engineers map out routes for their drivers consisting of "a series of right-hand loops"
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
812
Raid-Z Expansion Feature for ZFS Goes Live
The Foundation sponsored feature reflows existing data to rewrite it onto a new arrangement of disks thereby freeing space at the end of the logical RAID-Z group The FreeBSD Foundation funded the project to ensure the completion and release of an easy-to-use and practical application. The project came in under budget…
813
Scaling the GitLab database
An in-depth look at the challenges faced when scaling the GitLab database and the solutions we applied to help solve the problems with our database setup.
814
Rwasa – A high-performance web server in x86_64 assembly
rwasa is our full-featured, high performance, scalable web server designed to compete with the likes of nginx . It has been built from the ground-up with no external library dependencies entirely in x86_64 assembly language, and is the result of many years' experience with high volume web environments. In addition to…
815
Making a Postgres query 1k times faster
Learn how we discovered what was slowing down large database queries, and what we did to make Postgres queries 1000x faster.
816
How Time Series Databases Work, and Where They Don’t
This blog takes a deep dive into the hows and whys of time series databases—and why Honeycomb couldn't be limited to a TSDB implementation.
817
Async/Await on the GPU
GPU code can now use Rust's async/await. We share the reasons why and what this unlocks for GPU programming.
818
YJIT is the most memory-efficient Ruby JIT
This year, the YJIT team and I have gotten a paper accepted at MPLR 2023 (Managed Programming Languages and Runtimes), which is now freely available through ACM open access. The paper, titled “Evaluating YJIT’s Performance in a Production Context: A Pragmatic Approach”, goes into details of the strategy taken to…
819
We decided to move 90% of our workload from the cloud to on-prem infrastructure
Since the foundation of the first public cloud companies in the early 2000s, they have radically transformed the landscape of the internet…
820
Effectively using AWS Reserved Instances
Learn how Stripe uses AWS Reserved Instances and capacity planning to effectively manage a dynamic, scalable cloud infrastructure.
821
NetBSD 8.0 released
The NetBSD Project is pleased to announce NetBSD 8.0, the sixteenth major release of the NetBSD operating system.
822
Firefox finally plugs the leak
Leaky add-ons are a big problem, but there’s been lots of action relating to them recently. What follows is a summary of the situation and a request for help from currently Nightly testers who use add-ons.
823
When Bloom filters don't bloom
Last month finally I had an opportunity to use Bloom filters. I became fascinated with the promise of this data structure, but I quickly realized it had some drawbacks. This blog post is the tale of my brief love affair with Bloom filters.
824
Supercharging the Git Commit Graph
Have you ever run gitk and waited a few seconds before the window appears? Have you struggled to visualize your commit history into a sane order of
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826
Colliding with the SHA prefix of Linux's initial Git commit
Or, how to break all the tools that parse the "Fixes:" tag Kees Cook There was a recent discussion about how Linux's "Fixes" tag, which ...
827
Truly Seamless Reloads with HAProxy
What users often call a “seamless” or “hitless” reload is a configuration update or a service upgrade performed with no impact on user experience.
828
Why Oxide Chose Illumos
Servers in the Oxide Rack will form the backbone of both the compute and storage services available to customers. The rack will be composed of a variety of hardware and software components, some of which represent resource-constrained or inflexible environments; e.g., the Service Processor (SP) or Hardware Root Of…
829
MongoDB 3.4.0-rc3
In the past year and a half, MongoDB has put a good deal of work into improved read safety, enabled by the adoption of their new replication protocol and the WiredTiger storage engine. Dirty reads were addressed in 3.2 by introducing a majority read concern , and stale reads were addressed with the introduction of the…
830
ReactOS Updates
ReactOS is a free, opensource reimplementation of windows
831
We improved the performance of a userspace TCP stack in Go
Learn how we enhanced TCP performance in Coder to achieve 5X faster throughput by optimizing buffer sizes, implementing the HyStart algorithm, and minimizing packet loss, significantly improving remote development experiences.
832
Haiku booting in UEFI mode
As some may have noticed, my UEFI branch got merged in November, purely by accident too! However, until now, we still haven't been able to boot to the desktop. Whilst still in development, the addition of a simple framebuffer driver and a crucial fix …
833
WebVM: WASM virtual machine in browser with networking via Tailscale
WebVM, our virtual Linux environment running fully client-side in the browser, now supports networking via Tailscale.
834
PyPy for low-latency systems
PyPy for low-latency systems Recently I have merged the gc-disable branch, introducing a couple of features which are useful when you need...
835
Server-side sandboxing: Containers and seccomp
An overview of containers and seccomp as sandboxing primitives
836
Why Kubernetes isn't using Docker's libnetwork
Kubernetes has had a very basic form of network plugins since before version 1.0 was released — around the same time as Docker's libnetwork and Container Network Model (CNM) was introduced. Unlike libnetwork, the Kubernetes plugin system still retains its "alpha" designation. Now that Docker's network plugin support…
837
Making Postgres scale
A war story of manually sharding Postgres across 6 databases under load, and the case for automating the process with a proxy instead of weeks of engineering effort.
838
Corrosion
Corrosion is distributed service discovery based on Rust, SQLite, and CRDTs.
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840
ESP32 Undocumented Bluetooth Commands: Clearing the Air
The developer resources in just one place!