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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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Cannoli: The Fast QEMU Tracer
Cannoli Cannoli is a high-performance tracing engine for qemu-user. It can record a trace of both PCs executed as well as memory operations. It consists of a small patch to QEMU to expose locations to inject some code directly into the JIT, a shared library which is loaded
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Cracking LUKS/dm-crypt passphrases
Linux uses dm-crypt in order to provide transparent disk or partition encryption. What are the options in case you need to recover passphrase from such encryption? There are already ready-made tools, but we have also produced and published our own in order to support newer LUKS format/ciphers/hashing.
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A look back at memory models in 16-bit MS-DOS
Ways of dealing with the fractured address space.
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Progress in performance and scalability with CockroachDB
CockroachDB 2.1 is 50x more scalable than Amazon Aurora at less than 2% of the price per tpmC. Read on to see performance benchmarks of CockroachDB 2.1, including the latest TPC-C results.
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Searching 20 GB/sec: Systems Engineering Before Algorithms (2014)
SentinelOne unifies AI-powered endpoint, cloud, identity, and data protection—enhanced by our Security Data Lake for seamless and efficient cybersecurity.
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The Beam
In Lorena's latest instalment, learn about the foundations of Elixir's power and reliability with the Erlang Virtual Machine (BEAM).
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Amazon DynamoDB On Demand
January 31, 2025: Post updated to clarify the reduced on-demand pricing and workloads recommendations. Just a few years ago, creating a database that could support your business at any scale while providing consistent low latency was a daunting task. That changed for me in 2012 while reading Werner Vogels’ blog post…
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Building big systems with remote hardware teams
The product we’re building, a rack-scale computer, is specifically designed to be a centralized, integrated product because that’s what our customers need. This requirement and the design choices we’ve made to meet this need create some daily efficiency challenges for our team. As a remote-first company, we’re…
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Detecting Spectre and Meltdown Using Hardware Performance Counters
Security pros have been working on a new hardware attack type that exploits cache side-effects and speculative execution to perform privileged memory disclosure.
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Computer Latency at a Human Scale
We help businesses turn data into decisions and decisions into growth, combining deep expertise, AI capabilities, and executional excellence. Contact us today.
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Preventing AMI’s BiOS from interfering with coreboot flashing on the Librem 13
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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Is Northern Virginia still the least reliable AWS region?
We analyzed if AWS’ N. Virginia region remains the least reliable in 2025. Overview of outages, affected services, and the massive October 20 AWS incident, with insights from StatusGator’s real-time monitoring.
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Legacy Software Systems: How to Live with Aging Software Architecture?
Legacy software systems in 2026: why they are still used, myths about legacy and Java, tips from our engineers, and when to upgrade Java.
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Windows 11 Insider Preview Build 25905 brings a bit of Rust in the kernel
Hello Windows Insiders, today we are releasing Windows 11 Insider Preview Build 25905 to the Canary Channel. We are releasing ISOs for this build – they can be downloaded here. Starting with to
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Microsoft Windows Network File System v4 Remote Code Execution
In this excerpt of a Trend Micro Vulnerability Research Service vulnerability report, Guy Lederfein and Quintin Crist of the Trend Micro Research Team detail a recently patched remote code execution vulnerability in the Microsoft Windows operating system, originally discovered and reported by Yuki C
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Migrating Messenger storage to optimize performance
More than a billion people now use Facebook Messenger to instantly share text, photos, video, and more. As we have evolved the product and added new functionality, the underlying technologies that …
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A Practical Guide to Watchdogs for Embedded Systems
A community and blog for embedded software makers
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Mitigations are attack surface, too
Posted by Jann Horn, Project ZeroIntroductionThis blog post discusses a bug leading to memory cor...
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Optimizing Magic Pocket for cold storage
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Vulnerabilities in the TPM 2.0 reference implementation code
In this blog post we discuss the details of two vulnerabilities we discovered in the Trusted Platform Module (TPM) 2.0 reference implementation code. These two vulnerabilities, an out-of-bounds write (CVE-2023-1017) and an out-of-bounds read (CVE-2023-1018), affected several TPM 2.0 software implementations (such as…
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The Road to the WASM Component Model 1.0
WASI P3 is almost here, bringing native async support to the WebAssembly System Interface (WASI) and Component Model. In this post, we’re looking to the next big milestone: a stable, formally specified Component Model 1.0.At February’s B...