1
Incorporating and accessing binary data into a C program
Blog about Ubuntu from a kernel engineer
New
The latest blog posts to take off on Hacker News. 301 posts.
2
Profiling Python in Production
This post is about the ways we approached instrumentation, and some tools you can use to optimize your own apps (including code). Learn how we reduced CPU usage by 80% through Python profiling.
3
DLL Hijacking Just Won’t Die
The folks that build the NSIS Installer have released updates to mitigate a serious security bug related to DLL loading. (v2.5 and v3.0b3 include the fixes). To make a long and complicate…
4
Moore's law hits the roof
Software optimization resources | E-mail subscription to this blog | www.agner.org
5
6
State Considered Harmful – A Proposal for a Stateless Laptop
Two months ago I have published a detailed survey of varioussecurity-related problems plaguing the Intel x86 platforms. While the picturepainted in the paper...
7
8
EC2 Update – T2.Nano Instances Now Available
We announced the t2.nano instances earlier this year. Like their larger siblings (t2.micro, t2.small, t2.medium, and t2.large), these instances provide a baseline level of processing power, along with the ability to save up unused cycles and use them when the need arises. As I noted in my earlier post (New T2.Large…
9
The ‘Backends for Frontends’ Pattern at SoundCloud
Our friends at SoundCloud embarked on a journey a few years ago that changed their system and moved it from a monolithic Rails application towards an ecosystem of microservices.
10
Files Are Hard
I haven't used a desktop email client in years. None of them could handle the volume of email I get without at least occasionally corrupting my mailbox. Pine, Eudora, and outlook have all corrupted my inbox, forcing me to restore from backup. How is it that desktop mail clients are less reliable than gmail, even…
11
Stop using gzip
Everytime you download a tar.gz, Zod kills a kitten. Everytime you generate a tar.gz, well, let's keep this family-safe. In 2015, there s...
12
The first plasma: the Wendelstein 7-X fusion device is now in operation
Start of operation and first plasma in the Wendelstein 7-X fusion research device at IPP Greifswald
13
14
What We Talk About When We Talk About Distributed Systems
For quite some time now I’ve been trying to learn about distributed systems, and it’s appropriate to say that once you start digging, there seems to be no end to it, the rabbit hole goes on and on. The literature in distributed systems is quite extensive, with lots of papers coming from different universities, plus…
15
Why Percentiles Don’t Work the Way We Think
Customers ask us for p99 (99th percentile) of metrics pretty frequently. We plan to add such a feature to Database Performance Monitor (DPM)(more on that later). But a lot of the time, when customers make this request, they have something very specific, and different, ...
16
17
18
I installed CoreOS on a 9-year-old MacBook
DeLorean DMC-12
19
20
The Curious Case of Linux Containers
The next person that says “Linux Containers will solve all our problems” is going to get taken out back and shot. This is a surefire way to…
21
22
23
24
25
26
A whirlwind tour of Go’s runtime environment variables
The Go runtime, in addition to providing the usual services of garbage collection, goroutine scheduling, timers, network polling and so forth, contains facilities to enable extra debugging output and even alter the behaviour of the runtime itself.
27
Node.js running in the new Airbus A350 inflight servers
A couple of months ago Finnair announced the launch of the new A350 aircraft, making it the first European airline to start operating the model. We are
28
29
What is a 'unikernel'?
Learn what unikernels are, how they remove OS bloat between hardware and applications, and why they're gaining traction in cloud and microservices.
30
Using strace to figure out how Git push over SSH works
Yesterday I was curious about how git push works over SSH. I’m getting more used to using strace to figure this kind of thing out, so I gave it a shot. If I strace pushing to this site’s repository, this shows up: