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Tokio internals: Understanding Rust's async I/O framework
Tokio is a Rust framework for developing applications which perform asynchronous I/O — an event-driven approach that can often achieve better …
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Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 498 posts.
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Apple's CVDisplayLink Doesn't Link to Your Display
Edit 2017/12/10: So I screwed up, I thought I was safe confirming it in two different ways but I was using an external monitor and all of the below is accurate only for a specific multi-monitor case. Skip to the bottom to read about my new results.
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Fastest Way to Delete Large Folders in Windows (2015)
The common way of deleting files and folders in Windows is via Windows Explorer (a.k.a. File Explorer ). This method is perfectly acceptable under normal circumstances, but becomes a real drag when dealing with large and complex folder structures. There is, in fact, a significant amount of of overhead when you trigger…
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Is the x86 Architecture Sustainable?
Robert O'Callahan. Christian. Kiwi. Software guy. All content human-authored unless otherwise noted.
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Persisting state between AWS EC2 spot instances
Persisting state between AWS EC2 spot instances using Docker on an external volume
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Nuts and Bolts of Multithreaded Programming (2011)
Access technologies that use data for modern code, machine learning, big data, analytics, networking, storage, servers, cloud, and more.
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FreeNAS 11.0 is Now Here
In the TrueNAS blog, discover the latest in scalable data storage solutions. Stay updated on the latest innovations in TrueNAS technology.
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Epoll is broken – part 2/2
In this post we'll discuss the second argument on why the epoll() is broken. The problem is best described in an LWN comment by Foom :
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Run Kubernetes on top of DC/OS
Tips from experts, thoughts from leaders, news from the front line. Join the conversation beyond hyperconverged infrastructure to the enterprise cloud.
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A Decade of Dynamo
Today marks the 10-year anniversary of Amazon's Dynamo. Here are some reflections on ten years of NoSQL databases
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How both TCP and Ethernet checksums fail (2015)
At Twitter, a team had a unusual failure where corrupt data ended up in memcache. The root cause appears to have been a switch that was corrupting packets. Most packets were being dropped and the throughput was much lower than normal, but some were still making it through. The hypothesis is that occasionally the…
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Using Go for Scalable Operating System Analytics
At Kolide, part of what we do is build a client-server system that facilitates the management of large, isolated installations of an open-source tool called osquery. While I’ve written and spoken about osquery in the past, in this post I want to focus on how we use Go to solve many of the challenges we face building…
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Allocation Efficiency in High-Performance Go Services
Explore technical topics, solutions, and resources for building with Twilio – and beyond.
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An empirical study on the correctness of formally verified distributed systems
An empirical study on the correctness of formally verified distributed systems Fonseca et al., EuroSys’17 “Is your distributed system bug free?” “I formally verified it!R…
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What is Eventual Consistency?
On this post we're going to talk about Eventual Consistency in the context of lock-free and wait-free data structures, with focus on the C++...
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Preventing AMI’s BiOS from interfering with coreboot flashing on the Librem 13
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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The structure of a GCC back end
This is part one of a series “ Writing a GCC back end ”. The GCC back end is configured in gcc/config.host and the implementation is p...
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Building on Rock, Not Sand
Robert O'Callahan. Christian. Kiwi. Software guy. All content human-authored unless otherwise noted.
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Reducing Chrome crashes caused by third-party software
Update (04/26/2019): Third-party developers can now use this document to evaluate the impact of third-party blocking on their software. R...
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Mkfile(8) is severely syscall limited on OS X
When I got my brand-new MacBook Pro (late 2016), I was interested in testing out the phenomenal SSD performance I had been reading about, r...
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50 Bytes of Code That Took 4 GB to Compile (2013)
While doing evil things with macros and the inline assembler (trying to run a weird test whose purpose is not really relevant) I managed to write a program that caused Visual Studio’s C++ compiler …
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Pruning spaces from strings quickly on ARM processors
Suppose that I give you a relatively long string and you want to remove all spaces from it. In ASCII, we can define spaces as the space character (' '), and the line ending characters ('\r' and '\n'). I am mostly interested in algorithmic and performance issues, so we can simplify the problem by removing all ……
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