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Why CouchDB doesn't scale
This is my attempt to clear up some misconceptions about CouchDB and point out some technical details that a lot of people seem to have over...
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Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 6,945 posts.
6872
Why the secret to speedier highways might be closing some roads: the Braess paradox
"All will be well if you use your mind for your decisions, and mind only your decisions." Help me make more videos and posts! A monthly membership directly supports the channel and allows me to make more videos that inspire students and teachers around the world. You also get early access to new videos. Support with a…
6873
On the dangers of Intel's frequency scaling
While I was writing the post comparing the new Qualcomm server chip, Centriq, to our current stock of Intel Skylake-based Xeons, I noticed a disturbing phenomena.
6874
Amazon S3 Update – Strong Read-After-Write Consistency
When we launched S3 back in 2006, I discussed its virtually unlimited capacity (“…easily store any number of blocks…”), the fact that it was designed to provide 99.99% availability, and that it offered durable storage, with data transparently stored in multiple locations. Since that launch, our customers have used S3…
6875
What was the role of MS-DOS in Windows 95?
It acted as the 16-bit legacy device driver layer.
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Array
There, that's known as a teaser. You see it in television all the time. "Find out which common household plant devours pets at night... but first ." And then you have to sit through and watch the stuff about Brad and Angelina shacking up / Shaq driving his new Hummer / Hummer's new fragrance before they get to the…
6877
HTTP Archive: jQuery
A recent thread on Github for html5-boilerplate discusses whether there’s a benefit from loading jQuery from Google Hosted Libraries , as opposed to serving it from your local server. They referenced the great article Caching and the Google AJAX Libraries by Steve Webster.
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The Day The Standard Library Died
In Prague, the C++ committee took a series of polls on whether to break ABI, and decided not to. There was no applause. But I’m not sure we fully understood what we did and the consequences it could have.
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Golang data races to break memory safety
Go is becoming more and more popular as a programming language and getting more scrutiny from a security point of view. You might remember m...
6880
Why isn't my time zone highlighted on the world map?
In the original release of Windows 95, you could change your time zone by clicking on the map, and the time zone you selected would highlight. Similarly,
6881
Test iOS and Android Audio Latency with Superpowered Latency Test App
iOS and Android Audio Latency Test App with round-trip audio latency data for Apple, Samsung Galaxy, Xiaomi, LG, HTC, Nexus, Motorola, Sony, etc. devices.
6882
Nick Craver - What it takes to run Stack Overflow
I like to think of Stack Overflow as running with scale but not at scale. By that I meant we run very efficiently, but I still don’t think of us as “big”, n...
6883
AF_UNIX comes to Windows
Introduction: Beginning in Insider Build 17063, you’ll be able to use the unix socket (AF_UNIX) address family on Windows to communicate between Win32
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Introducing x64 emulation in preview for Windows 10 on ARM PCs to the Windows Insider Program
Updated 11/16/2021: x64 emulation for Windows is now generally available in Windows 11. For those interested in experiencing this, a PC running Windows 11 on Arm is required. Today, we're releasing the first preview of x64 emulation
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Ubuntu on Windows -- The Ubuntu Userspace for Windows Developers
Update: Here's how to get started using Ubuntu on Windows See also Scott Hanselman's blog here I'm in San Francisco this week, attendin...
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Signals and Threads Podcast
Listen in on Jane Street’s Ron Minsky as he has conversations with engineers working on everything from clock synchronization to reliable multicast, build systems to reconfigurable hardware. Get a peek at how Jane Street approaches problems, and how those ideas relate to tech more broadly.
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There Is No Thread
This is an essential truth of async in its purest form: There is no thread.
6888
LavaRand in Production: The Nitty-Gritty Technical Details
As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works in technical detail.
6889
Writing down (and searching through) every UUID
I couldn't remember every UUID so I wrote them all down
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HTTP Analytics for 6M requests per second using ClickHouse
One of our large scale data infrastructure challenges here at Cloudflare is around providing HTTP traffic analytics to our customers. HTTP Analytics is available to all our customers via two options:
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DNSSEC Downtime: List of Outages & Validation Failures
Major DNSSEC Outages and Validation Failures
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Amazon's Dynamo
In two weeks we’ll present a paper on the Dynamo technology at SOSP, the prestigious biannual Operating Systems conference. Dynamo is internal technology developed at Amazon to address the need for an incrementally scalable, highly-available key-value storage system. The technology is designed to give its users the…
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Randomness 101: LavaRand in Production
As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works.
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Profiling Go Programs
How to use Go's built-in profiler to understand and optimize your programs.
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The Backblaze Blog
Get all of the latest cloud storage news and insights from Backblaze - the leading independent cloud storage provider.
6896
Jepsen: CockroachDB beta-20160829
CockroachDB is a distributed SQL database, loosely patterned after Google Spanner and designed for semi-synchronous networks. It speaks the PostgreSQL wire protocol , supports a reasonable dialect of SQL , and combines replication for durability with transparent scale-out sharding for large tables. Its most…
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Summary of the 1.1 Billion Taxi Rides Benchmarks
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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How Protothreads Really Work
What goes on behind the magical macros in the C protothreads library? Why are they macros? How do the macros work? Read on for the explanation.
6899
A performance comparison of Judy to hash tables
Numerous claims about Judy's performance are made in the Judy whitepaper . I don't think any of those claims are wrong. However, it does not appear that sufficient effort was put in benchmarking Judy against other data structures. Now, it is unlikely there is another data structure that is both as fast and as small as…
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Basics of the Unix Philosophy
The ‘Unix philosophy’ originated with Ken Thompson's early meditations on how to design a small but capable operating system with a clean service interface. It grew as the Unix culture learned things about how to get maximum leverage out of Thompson's design. It absorbed lessons from many sources along the way.