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Mimalloc Cigarette: Losing one week of my life catching a memory leak (Rust)
How do you solve a memory heisenbug?
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,947 posts.
4832
32-bit x86 Position Independent Code – It's That Bad
Let's start by looking at a simple C function to be compiled as position-independent code (i.e. -fPIC , for use in a shared library):
4833
Fibers are the right solution to improve Ruby performance
The majority of performance improvements in modern processors are due to increased core count rather than increased instruction execution frequency. To maximise hardware utilization, applications need to use multiple processes and threads. Servers that process discrete requests are a good candidate for both…
4834
Explainer: .DS_Store Files
Many folders have them. They’re so invisible that you can’t even see them when you show hidden files. And the only way you know they’re there is when they cause problems.
4835
Your code is fast if you're lucky
Recently, while working on an optimized Quicksort implementation, I came across a rather interesting quirk. Modern compilers (especially Clang) optimize loops using fast, branch-free instructions - provided you use the right programming style.
4836
How Web Content Can Affect Power Usage
Users spend a large proportion of their online time on mobile devices, and a significant fraction of the rest is users on untethered laptop computers.
4837
Things that make Go fast
Anthony Starks has remixed my original Google Present based slides using his fantastic Deck presentation tool. You can check out his remix over on his blog, mindchunk.blogspot.com.au/2014/06/remixing-with-deck .
4838
Long-Term Consequences of Spectre and Its Mitigations
Robert O'Callahan. Christian. Kiwi. Software guy. All content human-authored unless otherwise noted.
4839
The Raspberry Pi’s Hardware Random Number Generator
Hey! This is a bit old! Things may have changed and I haven’t necessarily fixed them. Most computers can’t create true random numbers. They use a formula which makes a very long stream …
4840
Stategraph: Terraform state as a distributed systems problem
Terraform state is a distributed systems problem masquerading as file storage. Graph state fixes the bottlenecks.
4841
Perfecting GLFW for Zig, and finding lurking undefined behavior that went unnot
Today, I am announcing mach/glfw: Ziggified GLFW bindings with 100% API coverage, zero-fuss installation, cross compilation, and more.
4842
Under the Hood of Amazon EC2 Container Service
In this post I explore the Amazon ECS architecture and what this architecture enables.
4843
Scaling Secret: Real-Time Chat
(This is the first of a series of technical posts I intend to write, and my goal is to help other engineers learn from the experience of…
4844
Did the Windows 95 setup team forget that MS-DOS can do graphics?
Oh look what you just made there.
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Unwinding the Stack the Hard Way
Tutorial on how to make a stack trace or backtrace manually unwinding the stack using ELF’s .eh_frame and call frame information (CFI)
4847
FreeBSD and ZFS
ZFS has been making headlines lately, so it seems like the right time to talk about the longstanding relationship between FreeBSD and ZFS. ...
4848
Linux commands for advanced hardware and system info
Sometimes you need info about hardware, and you probably lost your invoice, spec list or a password to a store website. Maybe you did an upgrade and this info isn't accurate anymore. It's an easy case for home users, but what to do is you have many machines
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Memory Copy Hunting
I have a super power. I want to share it in this blog post so that you, my dear reader, also have it!
4851
Local and distributed query processing in CockroachDB
This blog post outlines how CockroachDB executes queries and shares Cockroach Labs' vision for future work on distributed processing.
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Debugging random slow writes in PostgreSQL
Understanding & mitigating randomly slow writes in PostgreSQL
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4855
Tracking Java native memory with JDK flight recorder
As regular readers of this blog will now, JDK Flight Recorder (JFR) is one of my favorite tools of the Java platform. This low-overhead event recording engine built into the JVM is invaluable for …
4856
Why do Windows functions begin with a pointless MOV EDI, EDI instruction? (2011)
Practical development throughout the evolution of Windows.
4857
Non-blocking transactional atomicity
tl;dr: You can perform non-blocking multi-object atomic reads and writes across arbitrary data partitions via some simple multi-versioning and by storing metadata regarding related items.
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4860
Apache Spark: The Next Big Data Thing?
Apache Spark is generating quite some buzz right now. Databricks, the company founded to support Spark raised $14M from Andreessen Horowitz, Cloudera has decided to fully support Spark, and others chime in that it's the next big thing. So I thought it's high time I took a look to get an understanding what the whole…