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Fast Llama 2 on CPUs with Sparse Fine-Tuning and DeepSparse
From live events to hands-on product demos to deep technical research, see what we're doing with AI at Red Hat.
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The latest blog posts to take off on Hacker News. 6,947 posts.
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What has changed in CPU cores in M3 chips?
Little seems to have changed in CPU cores in M3 chips, if you read reviews. Dig a bit deeper and there are major changes, as explained here.
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FreeBSD 14.0-Release
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 14.0-RELEASE. This is the first release from the stable/14 branch.
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Increasing QUIC and UDP Throughput over Tailscale
Recent optimizations in Tailscale improve UDP throughput, boosting performance for QUIC, HTTP/3, and other UDP-based applications on Linux.
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Setenv Is Not Thread Safe and C Doesn't Want to Fix It
You can't safely use the C setenv() or unsetenv() functions in a program that uses threads. Those functions modify global state, and can cause other threads calling getenv() to crash. This also causes crashes in other languages that use those C standard library functions, such as Go's os.Setenv ( Go issue ) and Rust's…
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Operating on a minimal two-core Postgres instance: Query optimization insights
In an era where the costs for cloud services continue to soar, I want to outline how our data team has successfully managed to run the infrastructure of our energy trading company within the first year using only two PostgreSQL database instances - each equipped with just two CPU cores and four GB of RAM. Despite this…
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Curl on 100 Operating Systems
In a recent pull-request for curl, I clarified to the contributor that their change would only be accepted and merged into curl's git code repository if they made sure that the change was done in a way so that it did not break (testing) for and on legacy platforms. In that thread, I could almost … Continue reading…
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The Architecture of Serverless Data Systems
I recently blogged about why I believe the future of cloud data services is large-scale and multi-tenant, citing, among others, S3. “ Top tier SaaS services like S3 are able to deliver amazing simplicity, reliability, durability, scalability, and low price because their technologies are s
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Reptar
We have a CPU mystery! We found a way to cause some processors to enter a glitch state where the normal rules don’t apply, but what does that mean…?
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YJIT is the most memory-efficient Ruby JIT
This year, the YJIT team and I have gotten a paper accepted at MPLR 2023 (Managed Programming Languages and Runtimes), which is now freely available through ACM open access. The paper, titled “Evaluating YJIT’s Performance in a Production Context: A Pragmatic Approach”, goes into details of the strategy taken to…
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Replacing HLS/Dash – Live Mass Fanout with Media over QUIC
Media over QUIC: Low-latency, high bitrate, mass fan-out is hard. Who knew?
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The Linux kernel has been accidentally hardcoded to a maximum of 8 cores
TL;DR This doesn’t mean that the scheduler can’t use more than 8 cores. The scheduler controls how to allocate tasks to available cores. How to schedule particular workloads efficiently…
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Link-Time Optimisation (LTO)
I recently started exploring link-time optimisation (LTO), which I used to think was just a single boolean choice in the compilation and linking workflow, and perhaps it was like that a while ago… I’ve learned that these days, there are many different dimensions of LTO across compilers and linkers today and more…
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Reverse engineering the Intel 386 processor's register cell
The groundbreaking Intel 386 processor (1985) was the first 32-bit processor in the x86 line. It has numerous internal registers: general-pu...
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i386 Assembly Language trick for storing data in .text
Don’t want a big old bloated multi-kilobyte executable with a data segment, but you do need to store some data?
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On-Crash Backtraces in Swift
The new Swift 5.9 release contains a number of helpful, new features for debugging code, including an out-of-process, interactive crash handler to inspect crashes in real time, the ability to trigger the debugger for just-in-time debugging, along with concurrency-aware backtracing to make it easier to understand…
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Go, Containers, and the Linux Scheduler
How to make the Go runtime play nicely with the Linux Scheduler
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Speeding up a program for a 50 year old processor
In the previous year I wrote a program, running on Intel's first microprocessor - 4004, that computes the first 255 digits of π. So let's continue our journey with the successor - the Intel 4040.
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Why Cities: Skylines 2 performs poorly
The teeth are not the only problem
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ReactOS Newsletter 103 – Late 2023 News
ReactOS is a free, opensource reimplementation of windows
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Classes vs. structs in .NET: how not to teach about performance
It’s been a while since my last blog post, but I believe it’s better to post late than never, so here I am!
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M3 Macs: there's more to performance than counting cores
A look at some of the factors determining the performance of new M3 chips compared to the M1 and M2 versions, and how not to compare them.
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Upstream Linux support available for Qualcomm Snapdragon 8 Gen 3 Mobile Platform
Effortless upstream Linux integration, powerful performance optimization, running AOSP with Mainline and last but not least continued collaboration
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Firefox got faster for real users in 2023
We’ve been working hard on making Firefox even faster and we’re extremely happy to report that this has resulted in an improvement in speed.
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Android and RISC-V: What you need to know to be ready
You can build, test, and run the Android support for RISC-V on your own machine.
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Apple CPU Architecture Through the Ages
Learn how CPUs work, and discover Apple’s underrated competitive advantage.