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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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The latest blog posts to take off on Hacker News. 6,949 posts.
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Thrill – Big Data Processing with C++
Yesterday, I discovered an experimental Big Data processing framework written in C++ called Thrill. As most of you surely know, the well-known frameworks of this kind are mostly based on JVM, like …
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Postmortem of database outage of January 31
Postmortem on the database outage of January 31 2017 with the lessons we learned.
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The web sucks if you have a slow connection
A couple years ago, I took a road trip from Wisconsin to Washington and mostly stayed in rural hotels on the way. I expected the internet in rural areas too sparse to have cable internet to be slow, but I was still surprised that a large fraction of the web was inaccessible. Some blogs with lightweight styling were…
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Modern garbage collection
A look at the Go GC strategy
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Why are all Windows drivers dated June 21, 2006?
Practical development throughout the evolution of Windows.
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What do you mean by “Event-Driven”?
Some notes on the different patterns that may be present when people talk about event-driven architectures.
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68 things the CLR does before executing a single line of your code
Because the CLR is a managed environment there are several components within the runtime that need to be initialised before any of your code can be executed. This post will take a look at the EE (Execution Engine) start-up routine and examine the initialisation process in detail.
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Monitoring and Tuning the Linux Networking Stack: Sending Data
This post discusses monitoring and tuning the Linux networking stack in great detail with the focus on sending data.
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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…
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Turning the database inside-out with Apache Samza (2015)
Confluent is building the foundational platform for data in motion so any organization can innovate and win in a digital-first world.
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Intern Impact: Brotli compression for Play Store app downloads
This month, the Google Play team in our London office was hyped to welcome back Anamaria Cotîrlea, a former intern who is now a full-time ...
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Where has my disk space gone? Flame graphs for file systems
Using the flame graph visualization to determine where file system or disk space is consumed, and answer where space has gone.
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The TTY demystified (2008)
The TTY subsystem is central to the design of Linux, and UNIX in general. Unfortunately, its importance is often overlooked, and it is difficult to find good introductory articles about it. I believe that a basic understanding of TTYs in Linux is essential for the developer and the advanced user.
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Beringei: A high-performance time series storage engine
Visit the post for more.
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Retina iMac owners can greatly improve graphics performance of many applications
Hmph! Not sure which one is "correct" there... hmm... If you use kCGImageAlphaPremultipliedFirst for the CGBitmapContext rather than kCGImageAlphaNoneFirst, then it looks closer to the original, maybe. ? Also other caveat: NSBitmapImageRep can't seem to deal with the ARGB format either, so if you use that you need to…
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Online migrations at scale
Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for businesses of all sizes.
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The JVM is not that heavy
Mostly my opposition to Clojure is the JVM. That sh*t is heavy. This came up in the ZA Tech Slack team several weeks ago. While watching some Clojure talks...
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Million requests per second with Python
Is it possible to hit a million requests per second with Python? Probably not until recently.
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Htop Explained Visually
htop is a great tool but lacks good documentation. This article takes a visual and simple approach to explaining htop.
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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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Instrumentation: The First Four Things You Measure
Old observability metrics like uptime and MTTR aren't enough anymore. Teams must connect technical signals to business outcomes, like savings and speed.
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A Deep Dive into HandBrake and Video Transcoding
An obvious interest area of mine is in ripping (and watching) movies using my Mac. I've talked about everything from installing the tools I use to how I rip to how to make sure I update the ripping tools . And though I've included some comparison pictures in the how-I-rip article, I've never done a deep dive into the…
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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...