6901
Summary of the 1.1 Billion Taxi Rides Benchmarks
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,949 posts.
6902
How Protothreads Really Work
What goes on behind the magical macros in the C protothreads library? Why are they macros? How do the macros work? Read on for the explanation.
6903
A performance comparison of Judy to hash tables
Numerous claims about Judy's performance are made in the Judy whitepaper . I don't think any of those claims are wrong. However, it does not appear that sufficient effort was put in benchmarking Judy against other data structures. Now, it is unlikely there is another data structure that is both as fast and as small as…
6904
Basics of the Unix Philosophy
The ‘Unix philosophy’ originated with Ken Thompson's early meditations on how to design a small but capable operating system with a clean service interface. It grew as the Unix culture learned things about how to get maximum leverage out of Thompson's design. It absorbed lessons from many sources along the way.
6905
How FriendFeed uses MySQL to store schema-less data
We use MySQL for storing all of the data in FriendFeed . Our database has grown a lot as our user base has grown. We now store over 250 million entries and a bunch of other data, from comments and "likes" to friend lists.
6906
Jepsen: On the perils of network partitions
This article is part of Jepsen , a series on network partitions. We’re going to learn about distributed consensus, discuss the CAP theorem’s implications, and demonstrate how different databases behave under partition.
6907
Redirect to sslh
My homepage for projects, jokes and bunnies.
6908
He Who Controls the Bootloader
The day before I submitted this column, news hit the net that the other shoe had finally dropped. After months of waiting and wondering what was to become of Be, we learned that Palm, Inc. will be purchasing Be's technology, intellectual property, and assets. While we don't yet know exactly what Palm plans to do with…
6909
Jepsen: Postgres
Previously on Jepsen , we introduced the problem of network partitions . Here, we demonstrate that a few transactions which “fail” during the start of a partition may have actually succeeded.
6910
It rather involved being on the other side of this airtight hatchway
Not every code injection bug is a security hole.
6911
Response Time Limits: Article by Jakob Nielsen
How users react to delays in a user interface, whether website or application. The 3 main response time limits are determined by human perceptual abilities.
6912
The Biggest Myths
Posts and writings by Lennart Poettering
6913
A Million-user Comet Application with Mochiweb, Part 1
In this series I will detail what I found out empirically about how mochiweb performs with lots of open connections, and show how to build a comet application using mochiweb, where each mochiweb connection is registered with a router which dispatches messages to various users. We end up with a working application that…
6914
Mitigating Spectre and Other Security Threats: The Cloudflare Workers Security Model
Cloudflare is a security company, and the heart of Workers is, in my view, a security project. Running code written by third parties is always a scary proposition, and the primary concern of the Workers team is to make that safe.
6915
Bell Labs and CSP Threads
This page is a slice of the history of concurrent programming, focusing on one particular lineage of Hoare's language of communicating sequential processes (CSP) [1] [1a] . Concurrent programming in this style is interesting for reasons not of efficiency but of clarity. That is, it is a widespread mistake to think…
6916
Boundaries
This talk is about using simple values (as opposed to complex objects) not just for holding data, but also as the boundaries between components and subsystems. It moves through many topics: functional programming; mutability's relationship to OO; isolated unit testing with and without test doubles; and concurrency, to…
6917
6918
GPUDirect Storage: A Direct Path Between Storage and GPU Memory
As AI and HPC datasets continue to increase in size, the time spent loading data for a given application begins to place a strain on the total application’s performance. When considering end-to-end…
6919
Smashing the Stack for Fun and Profit by Aleph One
An excellent (if a bit dated) article/tutorial on exploiting buffer overflow vulnerabilities. It was written by Aleph One for Phrack 49.
6920
Manuals for Intel® 64 and IA-32 Architectures
These manuals describe the architecture and programming environment of the Intel® 64 and IA-32 architectures.
6921
Spanner: TrueTime and external consistency
Understand Spanner's TrueTime and external consistency, ensuring globally consistent reads and writes across the distributed database.
6922
JSLinux - Technical Notes
In 2011 I wrote the initial version of JSLinux, the first PC/x86 emulator in Javascript running Linux. I reused parts of another of my emulators ( QEMU ) for the x86 helpers and the devices.
6923
The Treacherous Optimization
"I'm going to beat grep by thirty percent!" I confidently crow to anyone who would listen, those foolish enough to enter my office. And my girlfriend too, who's contractually obligated to pay attention to everything I say.
6924
Using Rust to Scale Elixir for 11 Million Concurrent Users
The Backend Infrastructure team at Discord was hard at work improving the scalability and performance of our core real-time communications infrastructure.
6925
Understanding Container Reuse in AWS Lambda
Tim Wagner, AWS Lambda AWS Lambda functions execute in a container (sandbox) that isolates them from other functions and provides the resources, such as memory, specified in the function’s configuration. In this article we discuss how Lambda creates and reuses these sandboxes, and the impact of those policies on the…
6926
Performance is a Feature
We’ve always put a heavy emphasis on performance at Stack Overflow and Stack Exchange. Not just because we’re performance wonks (guilty!), but because we think speed is a competitive advantage. There’s plenty of experimental data proving that the slower your website loads and displays, the less people
6927
The largest Git repo on the planet
It’s been 3 months since I first wrote about our efforts to scale Git to extremely large projects and teams with an effort we called “Git Virtual File System”. As a reminder, GVFS, together with a set of enhancements to Git, enables Git to scale to VERY large repos by virtualizing both the .git folder […]
6928
A Whole New World
This talk announces the most ambitious software project I've ever undertaken, then considers why its existence is so surprising (and in some cases frustrating) to people.
6929
Will ZFS and non-ECC RAM kill your data?
This comes up far too often, so rather than continuing to explain it over and over again, I’m going to try to do a really good job of it once and link to it here.
6930
Modern garbage collection
A look at the Go GC strategy