91
How setting the TZ environment variable avoids thousands of system calls
In this article, you can find how setting the TZ environment variable can prevent thousands of system calls.
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 109 posts.
92
Linux containers in 500 lines of code (2016)
I've used Linux containers directly and indirectly for years, but I wanted to become more familiar with them. So I wrote some code. This used to be 500 lines of code, I swear, but I've revised it some since publishing; I've ended up with about 70 lines more.
93
Writing a Bootloader
This post describes how to write a simple Hello world bootloader
94
Learning to operate Kubernetes reliably
Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for businesses of all sizes.
95
Exploiting the Wi-Fi Stack on Apple Devices
Posted by Gal Beniamini, Project ZeroIn this blog post we’ll complete our goal of achieving...
96
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.
97
Can You Afford It? Real-World Web Performance Budgets
Performance budgets are an essential but under-appreciated part of product success and team health. Most partners we work with are not aware of the real-world operating environment and make inappropriate technology choices as a result. We set a time budget of less than 5 seconds first-load Time-to-Interactive and less…
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99
A deep dive into Multicore OCaml garbage collector
I recently gave a talk on the internals of multicore OCaml GC at Jane Street offices in NYC. The slides from the talk are available online . But I felt that the slides alone aren’t particularly edifying. This post is basically the slides from the talk annotated with notes.
100
Formal Methods in Practice: Using TLA+ at ESpark
Using TLA+ at eSpark Learning
101
What Have We Learned from the PDP-11?
This post is a slightly edited version of my November presentation to the San Francisco chapter of Papers We Love.
102
Broken packets: IP fragmentation is flawed
As opposed to the public telephone network, the internet has a Packet Switched design. But just how big can these packets be?
103
Rediscovering the Intel AMT Vulnerability
On May 1, 2017 Intel disclosed the AMT vulnerability (INTEL-SA-00075), but details of that vulnerability were not made public. However, Tenable researchers were able to overcome this challenge and make Tenable the first to deliver Intel AMT vulnerability detection capabilities to customers, just minutes after Intel’s…
104
Why is my tcp not reliable? (2009)
This post is about an obscure corner of TCP network programming, a corner where almost everybody doesn’t quite get what is going on. I used to think I understood it, but found out last week that I didn’t.
105
Playing with Kernel TLS in Linux 4.13 and Go
The 1600 LoC patch allows userspace to pass the kernel the encryption keys for an established connection, making encryption happen transparently inside the kernel.
106
Stream VByte: breaking new speed records for integer compression
In many information systems, we work with arrays of integers. For example, maybe you need to keep track of which records in a database contain a given value. This sort of mapping can be expressed as an array of integers. These arrays can end up taking up a large fraction of your memory or disk … Continue reading…
107
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 :
108
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…
109
Allocation Efficiency in High-Performance Go Services
Explore technical topics, solutions, and resources for building with Twilio – and beyond.