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How a little bit of TCP knowledge is essential
Why you should understand (a little) about TCP
New
The latest blog posts to take off on Hacker News. 301 posts.
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To ECC or Not to ECC
On one of my visits to the Computer History Museum – and by the way this is an absolute must-visit place if you are ever in the San Francisco bay area – I saw an early Google server rack circa 1999 in the exhibits. Not too fancy, right? Maybe even… a
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Will ZFS and non-ECC RAM kill your data?
This comes up far too often, so rather than continuing to explain it over and over again, I’m going to try to do a really good job of it once and link to it here.
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Elasticsearch as a Time Series Data Store
Ever wondered how Elasticsearch handles time series metrics? Felix Barnsteiner from stagemonitor - an open source solution to application performance monitoring
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Parallel Sequential Scan is Committed to PostgreSQL 9.6
I previously suggested that we might be able to get parallel sequential scan committed to PostgreSQL 9.5. That did not happen. However, I...
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Bare Metal Rust 2: Retarget your compiler so interrupts are not evil
Random code snippets, projects and musings about software from Eric Kidd, a developer and occasional entrepreneur.
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Assembly Language: Still Relevant Today
First, no, I don't do every thing in assembly. I use other languages too. Assembly language does have its place though. Second, a few of my points may not apply to highly complex processors; for example, self-modifying code may not work on a processor with an instruction cache .
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I rewrote Firefox's BMP decoder
Recently I’ve been deliberately working on some areas of Firefox I’m unfamiliar with, particular relating to graphics. This led me to rewriting Firefox’s BMP decoder and learn a number of interesting things along the way.
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Fedora 23 released
It’s (approximately) Halloween, so you know what that means — new Fedora! The Fedora 23 release is here, and it’s better than ever before. We’re pleased to bring you the latest incarnations of the three main Fedora editions — Fedora Workstation, Fedora Cloud, and Fedora Server, each built with love by the Fedora…
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The Road to 2M Websocket Connections in Phoenix
If you have been paying attention on Twitter recently, you have likely seen some increasing numbers regarding the number of simultaneous connections the Phoenix web framework can handle. This post documents some of the techniques used to perform the benchmarks.
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System design implications of declining network latency vs. disk latency
Hardware performance “obviously” affects software performance and affects how software is optimized. For example, the fact that caches are multiple orders of magnitude faster than RAM means that blocked array accesses give better performance than repeatedly striding through an array.
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Random Acts of Optimization
Game developers working on a continuously evolving product like League of Legends are constantly battling against the forces of entropy as they add more and more content into unfortunately finite machines. New content carries implicit cost…
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Intel x86 considered harmful – survey of attacks against x86 over last 10 years
Back in summer I have read a new bookpublished by one of the core Intel architects about the Management Engine (ME).I didn’t quite like what I read there. In...
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MariaDB 10.1 can do 1M queries per second
MariaDB 10.1 not only contains tons of new features, it has also been polished to deliver top performance. The biggest improvement has been achieved for scalability on massively multithreaded hardware. The following numbers show the throughput for a simplified sysbench OLTP benchmark on MariaDB-10.1.8 compared to…
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Node.js: Some quick optimization advice
#NodeJS : A quick optimization advice Can you spot the difference between these two files : that can explain a 50% performance gain : If you don’t, it’s normal, you try to read the code …
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Structural and semantic deficiencies in the systemd architecture
I was finally tempted into writing this from a Hacker News discussion on “ Debian Dropping the Linux Standard Base ,” where some interest was expressed in reading an architectural critique of systemd.
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Filtering millions of packets per second on commodity NICs
In a previous post we discussed the performance limitations of the Linux kernel network stack. We detailed the available kernel bypass techniques allowing user space programs to receive packets with high throughput.
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Doubling the speed of jpegtran with SIMD
It is no secret that at CloudFlare we put a great effort into accelerating our customers' websites. One way to do it is to reduce the size of the images on the website. This is what our Polish product is for.