amzn-drivers
deno
amzn-drivers | deno | |
---|---|---|
4 | 448 | |
441 | 92,975 | |
0.7% | 0.3% | |
9.1 | 9.9 | |
17 days ago | 4 days ago | |
C | Rust | |
- | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
amzn-drivers
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Looking for programmer volunteers who want to contribute/learn about low level C++, Linux, Networking, high frequency trading.
Amazon (AWS) cloud EC2 instance specific role (Kernel and User space networking, linux OS related). Amazon has it's own network card with it's own linux driver (open source), for user space they use DPDK (open source). https://github.com/amzn/amzn-drivers I've measured the time between calling tcp send in software, and packet leaving the NIC (network card), it is around ~50 microseconds latency, aws also stated in a paper it is around that number. Goals:- Figure out the way to build from source code and load the kernel.- Reduce latency
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FreeBSD optimizations used by Netflix to serve video at 800Gb/s [pdf]
It means, for example, writing a FreeBSD kernel driver for Elastic Network Adapter (ENA). Both Linux kernel driver and FreeBSD kernel driver is available at https://github.com/amzn/amzn-drivers
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Dragonflydb – A modern replacement for Redis and Memcached
Of course, there are.
I was mostly running on AWS. In terms of hardware, for small packets loadtests most systems are constrained on throughput, i.e. number of packets per second. Some systems saturate on interrupts reaching 100% CPU on all cores and some can not even saturate the CPU and you will see that CPU is at 60% but you can not go beyond some limit. Best systems networkwise are c6gn family types. They are also better than other cloud provide. btw, you mentioned hypervisors... About 8 months ago I opened a bug on AWS Graviton team https://github.com/amzn/amzn-drivers/issues/195 - about performance issue they had on their instances at high throughput. Recently they issued the fix. I suspect it was in their hypervisor.
In terms of my software I found many performance bugs at those speeds. For example, using a default allocator is a big no. I use mimalloc for uncontended allocations. In general, you can not use mutexes and spinlocks at those speeds. Those will just cripple the system. Sometimes it can be very annoying since you can not rely on a 3rd party library without carefully analyzing its design. For example, I could not use openmetrics c++ library because it was not performant enough. Even to implement a simple counter, say to gather statistics for INFO command becomes an interesting engineering problem:
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Ask HN: Anybody enabled IOMMU on AWS metal servers?
https://doc.dpdk.org/guides/nics/ena.html
and:
https://github.com/amzn/amzn-drivers/tree/master/userspace/dpdk/enav2-vfio-patch
Enabling IOMMU on i3 or c5 metal instances is as easy as adding "iommu=1 intel_iommu=on" to /etc/default/grub followed by update-grub, reboot.
I can't get this to work. Everything I update grub and reboot I cannot re-connected via ssh. Also EC2 console fails to get good status.
My config:
Ubuntu 20.04 stock AWS AMI x86 64-bit
deno
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Bun - The One Tool for All Your JavaScript/Typescript Project's Needs?
NodeJS is the dominant Javascript server runtime environment for Javascript and Typescript (sort of) projects. But over the years, we have seen several attempts to build alternative runtime environments such as Deno and Bun, today’s subject, among others.
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Bun 1.1
https://github.com/denoland/deno/issues is the ideal place -- we try to triage all incoming issues, the more specific the repro the easier it is to address but we will take a look at everything that comes in.
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I have created a small anti-depression script
Install Node.js (or Bun, or Deno, or whatever JS runtime you prefer) if it's not there
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How QUIC is displacing TCP for speed
QUIC is very exciting, after seeing what it can do for performance in Cloudflare network and Cloudflare workers, I can't wait to finally see it in Deno[0] 1.41.
[0] https://github.com/denoland/deno/pull/21942#issuecomment-192...
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Unison Cloud
So as an end user it's kind of like https://deno.com/ where you buy into a runtime + comes prepacked with DBs (k/v stores), scheduling, and deploy stuff?
> by storing Unison code in a database, keyed by the hash of that code, we gain a perfect incremental compilation cache which is shared among all developers of a project. This is an absolutely WILD feature, but it's fantastic and hard to go back once you've experienced it. I am basically never waiting around for my code to compile - once code has been parsed and typechecked once, by anyone, it's not touched again until it's changed.
Interesting. Whats it like upgrading and managing dependencies in that code? I'd assume it gets more complex when it's not just the Union system but 3rd party plugins (stuff interacting with the OS or other libs).
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Deno in 2023
~90MB+ at this stage and do now allow compression without erroring out. Deploying ala Golang is not feasible at that level but could well be down the line if this dev branch is picked up again!
The exe output grew from from ~50MB to plus ~90MB from 2021 to 2024: https://github.com/denoland/deno/discussions/9811 which mean Deno is worse than Node.js's pkg solution by a decent margin.
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Mini site for recommending songs using Svelte & Deno
Behind the scenes is a simple Sveltekit-powered server function to fetch a Spotify client token then find a user's recommendation playlist and its track information. A Deno edge function to performs this data fetch and renders server-side Svelte.
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Supercharge your app with user extensions using Deno JavaScript runtime
If your application is written in JavaScript, integrating it with JavaScript extensions is a no-brainer. However, Secutils.dev is entirely written in Rust. How would I even begin? Fortunately, I recently came across an excellent blog post series explaining how to implement your JavaScript runtime in a Rust application with Deno:
- Deno, the next-generation JavaScript runtime
- Oxlint – written in Rust – 50-100 Times Faster than ESLint
What are some alternatives?
dragonfly - A modern replacement for Redis and Memcached
ASP.NET Core - ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
neon - Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, branching, and bottomless storage.
typescript-language-server - TypeScript & JavaScript Language Server
cachegrand - cachegrand - a modern data ingestion, processing and serving platform built for today's hardware
pnpm - Fast, disk space efficient package manager
helio - A modern framework for backend development based on io_uring Linux interface
esbuild - An extremely fast bundler for the web
midi-redis - A toy memory store with great performance
bun - Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
webdis - A Redis HTTP interface with JSON output
Koa - Expressive middleware for node.js using ES2017 async functions