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Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
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On the dangers of Intel's frequency scaling
While I was writing the post comparing the new Qualcomm server chip, Centriq, to our current stock of Intel Skylake-based Xeons, I noticed a disturbing phenomena.
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Amazon S3 Update – Strong Read-After-Write Consistency
When we launched S3 back in 2006, I discussed its virtually unlimited capacity (“…easily store any number of blocks…”), the fact that it was designed to provide 99.99% availability, and that it offered durable storage, with data transparently stored in multiple locations. Since that launch, our customers have used S3…
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What was the role of MS-DOS in Windows 95?
It acted as the 16-bit legacy device driver layer.
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Why isn't my time zone highlighted on the world map?
In the original release of Windows 95, you could change your time zone by clicking on the map, and the time zone you selected would highlight. Similarly,
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Test iOS and Android Audio Latency with Superpowered Latency Test App
iOS and Android Audio Latency Test App with round-trip audio latency data for Apple, Samsung Galaxy, Xiaomi, LG, HTC, Nexus, Motorola, Sony, etc. devices.
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AF_UNIX comes to Windows
Introduction: Beginning in Insider Build 17063, you’ll be able to use the unix socket (AF_UNIX) address family on Windows to communicate between Win32
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Introducing x64 emulation in preview for Windows 10 on ARM PCs to the Windows Insider Program
Updated 11/16/2021: x64 emulation for Windows is now generally available in Windows 11. For those interested in experiencing this, a PC running Windows 11 on Arm is required. Today, we're releasing the first preview of x64 emulation
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Signals and Threads Podcast
Listen in on Jane Street’s Ron Minsky as he has conversations with engineers working on everything from clock synchronization to reliable multicast, build systems to reconfigurable hardware. Get a peek at how Jane Street approaches problems, and how those ideas relate to tech more broadly.
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LavaRand in Production: The Nitty-Gritty Technical Details
As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works in technical detail.
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HTTP Analytics for 6M requests per second using ClickHouse
One of our large scale data infrastructure challenges here at Cloudflare is around providing HTTP traffic analytics to our customers. HTTP Analytics is available to all our customers via two options:
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Randomness 101: LavaRand in Production
As some of you may know, there's a wall of lava lamps in the lobby of our San Francisco office that we use for cryptography. In this post, we’re going to explore how that works.
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Profiling Go Programs
How to use Go's built-in profiler to understand and optimize your programs.
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The Backblaze Blog
Get all of the latest cloud storage news and insights from Backblaze - the leading independent cloud storage provider.
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Jepsen: CockroachDB beta-20160829
CockroachDB is a distributed SQL database, loosely patterned after Google Spanner and designed for semi-synchronous networks. It speaks the PostgreSQL wire protocol , supports a reasonable dialect of SQL , and combines replication for durability with transparent scale-out sharding for large tables. Its most…
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It rather involved being on the other side of this airtight hatchway
Not every code injection bug is a security hole.
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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.
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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.
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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…
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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.
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Manuals for Intel® 64 and IA-32 Architectures
These manuals describe the architecture and programming environment of the Intel® 64 and IA-32 architectures.
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Spanner: TrueTime and external consistency
Understand Spanner's TrueTime and external consistency, ensuring globally consistent reads and writes across the distributed database.
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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.
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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…
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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 […]
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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.