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Debugging an evil Go runtime bug
From heat guns to kernel compiler flags
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 498 posts.
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IOHIDeous OS X Local Kernel Vulnerability
Siguza’s Blog
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Delivering Billions of Messages Exactly Once
The single requirement of all data pipelines is that they cannot lose data. Data can usually be delayed or re-ordered–but never dropped.
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View Counting at Reddit
Get the latest product news, company announcements, and user insights from the official Reddit blog.
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The sudden death and eternal life of Solaris
As had been rumored for a while, Oracle effectively killed Solaris on Friday . When I first saw this, I had assumed that this was merely a deep cut, but in talking to Solaris engineers still at Oracle, it is clearly much more than that. It is a cut so deep as to be fatal: the core Solaris engineering organization lost…
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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.
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PostmarketOS: Aiming for a 10 year life-cycle for smartphones
Introduction post to postmarketOS , a touch-optimized, pre-configured Alpine Linux with own packages, that can be installed on smartphones. (Not usable for most people yet!)
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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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Escaping Docker container using waitid() – CVE-2017-5123
Prisma Cloud is the most complete Cloud Native Application Protection Platform (CNAPP) for code to cloud security in any cloud, multicloud, and hybrid environment.
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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.
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Over the Air: Exploiting Broadcom’s Wi-Fi Stack
Posted by Gal Beniamini, Project ZeroIt’s a well understood fact that platform security is ...
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How Discord Stores Billions of Messages Using Cassandra
Discover the latest news and app updates, stories, company insights, and plenty more about Discord, all in one place.
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Clocks for Software Engineers
If you have a software background and you want to pick up digital design,then one of the first things you need to learn about early on is the conceptof the c...
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Does it scale? Who cares (2011)
Web developers the world over are always terminally worried about whether or not their application will scale orders of magnitude without keeling over.
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Docker operations slowing down on AWS
I’m CC’d on mails when things get slow, but never when things work as expected or are fast…oh well. Like an umpire in baseball, if we are doing our jobs, we are invisible. Subjec…
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Rust Performance Pitfalls
Overall, Rust is pretty good for performance. Write the most simple, naive stuff, and it will usually run within a factor of two from optimized C/C++ code, without any further performance work on the code. With some investment into optimizations, matching or exceeding C’s speed should be possible in most cases…
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Treble: A modular base for Android
News and insights on the Android platform, developer tools, and events.
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Two frequently used system calls are ~77% slower on AWS EC2
This article reveals the stats that show two frequently used system calls are 77% slower on AWS EC2 and its causes.
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Terminal and shell performance
There’s a great MSR demo from 2012 that shows the effect of latency on the experience of using a tablet . If you don’t want to watch the three minute video, they basically created a device which could simulate arbitrary latencies down to a fraction of a millisecond. At 100ms (1/10th of a second), which is typical of…
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Fewer mallocs in curl
Today I landed yet another small change to libcurl internals that further reduces the number of small mallocs we do. This time the generic linked list functions got converted to become malloc-less (the way linked list functions should behave, really). Instrument mallocs I started out my quest a few weeks ago by…
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Writing a Bootloader
This post describes how to write a simple Hello world bootloader