121
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 190 posts.
122
Microsoft: No Driver Updates Allowed for Win7 and Win8
Microsoft has announced that it is ending the ability to cross-sign drivers, effective 1 July 2021. This will effectively make it impossible to release new or updated drivers for Windows 7, Windows…
123
On the Performance of User-Mode Threads and Coroutines
Discussions of coroutines and user-mode threads — like Project Loom's virtual threads or Go's goroutines — frequently turn to the subject of performance. The question I'll try answering here is, how do user-mode threads offer better application performance than OS threads?
124
125
Buffer overflow when pwfeedback is set in sudoers
Sudo’s pwfeedback option can be used to provide visual feedback when the user is inputting their password. For each key press, an asterisk is printed. This option was added in response to user confusion over how the standard Password: prompt disables the echoing of key presses. While pwfeedback is not enabled by…
126
Improving Postgres Connection Scalability: Snapshots
Improving connection scalability in Postgres 14. From the neat to the gritty: snapshot scalability edition.
127
Firecracker: Lightweight Virtualization for Serverless Applications
Serverless containers and functions are widely used for deploying and managing software in the cloud. Their popularity is due to reduced cost of operations, improved utilization of hardware, and faster scaling than traditional deployment methods. The economics and scale of serverless applications…
128
129
Several months in the life of Project Zero – Part 1: The Chrome bug of suffering
Posted by Sergei Glazunov and Mark Brand, Project ZeroIntroductionIt was a normal week in the Pro...
130
Getting Hands-on with io_uring using Go
In Linux, system calls (syscalls) are at the heart of everything. They are the primary interface through which an application interacts with the kernel.
131
Speculation in JavaScriptCore
This post is all about speculative compilation, or just speculation for short, in the context of the JavaScriptCore virtual machine.
132
Porting Firecracker to a Raspberry Pi 4 (2019)
Since we got our hands on the new Raspberry Pi 4, we started exploring how various virtualization technologies behave on the board. First thing we tried is how to run Nabla on it and how it compares to native KVM. Next thing we wanted to try is firecracker, the notorious micro-VMM that Amazon Lambda & Fargate run…
133
134
Scaling SQLite to 4M QPS on a Single Server (EC2 vs. Bare Metal)
Discover how Expensify achieved remarkable scaling: 4M QPS on one server! Dive into optimizing SQLite for impressive performance gains.
135
Chrome just got faster with Profile Guided Optimization
From the very beginning , we built Chrome to be the fastest browser possible. The faster Chrome is, the faster you find the information you ...
136
UtahFS: Encrypted File Storage
Several months ago, I realized that I had a lot of sensitive files on my computer (my diary, if you must know) that I was afraid of losing, but I didn’t feel comfortable putting them in something like Google Drive or Dropbox. Introducing UtahFS.
137
Big Sur bug prevents upgrades to the next version
If you work with Apple in some capacity, you know that they’re not very likely to admit mistakes. I’m not aware of Apple publishing postmortems after outages or providing details about known issues. So it’s up to the developer and admin communities at large to help each other learn about outages and potential causes…
138
RTX3080 TensorFlow and NAMD Performance on Linux
The much anticipated NVIDIA GeForce RTX3080 has been released. How good is it with TensorFlow for machine learning? How about molecular dynamics with NAMD? I've got some preliminary numbers for you!
139
140
141
A crash course in just-in-time compilers (2017)
This is the second part in a series on WebAssembly and what makes it fast. If you haven’t read the others, we recommend starting from the beginning. JavaScript started out ...
142
143
FF Sandbox Escape
By James Forshaw, Project ZeroIn my previous blog post I discussed an issue with the Windows Kern...
144
Intel and ARM Performance Characteristics for S3 Compatible Object Storage
Product updates, company news, and educational content on AI storage, object storage, data lakehouses, and cloud-native infrastructure from MinIO.
145
We Replaced an SSD with Storage Class Memory
MongoDB's blog includes technical tutorials, MongoDB best practices, customer stories, and industry news related to the leading non-relational database.
146
147
148
The Importance of End-to-End Thinking in System Design
I once attended a talk by Yoky Matsuoka when I was young – so young, in fact, that I don’t remember when or where the talk was. What I do remember is her telling the story of designing…
149
Postmortem of the failure of one hosting storage unit on Jan. 8, 2020
On January 8, 2020 at 14:51 UTC, one of our storage units used for our hosting services hosted at LU-BI1 went down.
150
A survey of recent iOS kernel exploits
Posted by Brandon Azad, Project ZeroI recently found myself wishing for a single online reference...