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AWS、高速起動にこだわった軽量なJavaScriptランタイム「LLRT」（Low Latency Runtime）をオープンソースで公開。AWS Lambdaでの利用にフォーカス
AWS、高速起動にこだわった軽量なJavaScriptランタイム「LLRT」（Low Latency Runtime）をオープンソースで公開。AWS Lambdaでの利用にフォーカス Amazon Web Services（AWS）は、実験的な実装としてサーバレス環境のAWS Lambdaで使うことにフォーカスした軽量なJavaScriptランタイム「LLRT」（Low Latency Runtime）をオープンソースで公開しました。 LLRTはRustで開発され、JavaScriptエンジンにはQuickJSを採用しています。 LLRTの最大の特徴は、現在のJavaScriptランタイムにおいて性能向上のために搭載されているJITコンパイラをあえて搭載せず、よりシンプルで軽量なランタイムとして実装することで高速に起動することにこだわっている点です。 これにより（Node.jsやDenoや
Want to learn more about unlimited IOPS w/ Metal, Vitess, horizontal sharding, or Enterprise options? Talk to Solutions By Benjamin Dicken | March 13, 2025 Non-volatile storage is a cornerstone of modern computer systems. Every modern photo, email, bank balance, medical record, and other critical pieces of data are kept on digital storage devices, often replicated many times over for added durabil
Introducing CloudFront Functions – Run Your Code at the Edge with Low Latency at Any Scale | Amazon Web Services
AWS News Blog Introducing CloudFront Functions – Run Your Code at the Edge with Low Latency at Any Scale With Amazon CloudFront, you can securely deliver data, videos, applications, and APIs to your customers globally with low latency and high transfer speeds. To offer a customized experience and the lowest possible latency, many modern applications execute some form of logic at the edge. The use
GitHub - awslabs/llrt: LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications.
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GitHub - microsoft/garnet: Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with exis
Garnet is a new remote cache-store from Microsoft Research, that offers several unique benefits: Garnet adopts the popular RESP wire protocol as a starting point, which makes it possible to use Garnet from unmodified Redis clients available in most programming languages of today, such as StackExchange.Redis in C#. Garnet offers much better throughput and scalability with many client connections an
Introducing Amazon CloudFront KeyValueStore: A low-latency datastore for CloudFront Functions | Amazon Web Services
AWS News Blog Introducing Amazon CloudFront KeyValueStore: A low-latency datastore for CloudFront Functions December 12, 2023: Post updated to clarify that when a CloudFront function changes the uri value, it doesn’t change the cache behavior for the request or the origin that an origin request is sent to. Amazon CloudFront allows you to securely deliver static and dynamic content with low latency
Africa (Cape Town) af-south-1 Asia Pacific (Hong Kong) ap-east-1 Asia Pacific (Tokyo) ap-northeast-1 Asia Pacific (Seoul) ap-northeast-2 Asia Pacific (Osaka) ap-northeast-3 Asia Pacific (Mumbai) ap-south-1 Asia Pacific (Singapore) ap-southeast-1 Asia Pacific (Sydney) ap-southeast-2 Canada (Central) ca-central-1 EU (Frankfurt) eu-central-1 EU (Stockholm) eu-north-1 EU (Milan) eu-south-1 EU (Ireland
GitHub - apenwarr/blip: A tool for seeing your Internet latency. Try it at http://gfblip.appspot.com/
Go to http://gfblip.appspot.com/ It should work on any PC, laptop, tablet, phone, or iPod with javascript and HTML canvas support (which means almost everything nowadays). X axis is time. Y axis is milliseconds of latency. Green blips are your ping time to gstatic.com (a very fast site that should be close to you wherever you are). Blue blips are your ping time to apenwarr.ca ("a site on the Inter
GitHub - hyperlight-dev/hyperlight: Hyperlight is a lightweight Virtual Machine Manager (VMM) designed to be embedded within applications. It enables safe execution of untrusted code within micro virtual machines with very low latency and minimal overhead
Hyperlight is a library for creating micro virtual machines — or sandboxes — specifically optimized for securely running untrusted code with minimal impact. It supports both Windows and Linux, utilizing Windows Hypervisor Platform on Windows, and either Microsoft Hypervisor (mshv) or KVM on Linux. These micro VMs operate without a kernel or operating system, keeping overhead low. Instead, guests a
GitHub - paypal/junodb: JunoDB is PayPal's home-grown secure, consistent and highly available key-value store providing low, single digit millisecond, latency at any scale.
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How Prime Video Cut UI Latency 7.6x by Switching to Rust | AIM Media House
“The problem was JavaScript, so we don't have that anymore.” It takes less than a minute to find programmers singing praises for Rust on an online forum. Over the last few years, Rust has been one of the most admired programming languages in Stack Overflow surveys. Naturally, some of the largest companies today are reaping the benefits of the various advantages the language provides. Companies aro
Making Aurora Write Latency 15x Higher (or More!) by Choosing a Bad Primary Key
Primary Key design is an important thing for InnoDB performance, and choosing a poor PK definition will have an impact on performance and also write propagation in databases. When this comes to Aurora, this impact is even worse than you may notice. In short, we consider a poor definition of a Primary Key in InnoDB as “anything but quasi sequential values”, which may cause very random access to dat
GitHub - kffl/speedbump: TCP proxy for simulating variable, yet predictable network latency :globe_with_meridians::hourglass_flowing_sand:
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Accelerating Generative AI with PyTorch: Segment Anything 2 - Fast and furious inference with low latency and fast cold starts
Join us at PyTorch Conference in San Francisco, October 22-23. CFP open now! Learn more. Learn Get Started Run PyTorch locally or get started quickly with one of the supported cloud platforms Tutorials Whats new in PyTorch tutorials Learn the Basics Familiarize yourself with PyTorch concepts and modules PyTorch Recipes Bite-size, ready-to-deploy PyTorch code examples Intro to PyTorch - YouTube Ser
Low latency tuning guide
This guide describes how to tune your AMD64/x86_64 hardware and Linux system for running real-time or low latency workloads. Example workloads where this type of tuning would be appropriate: Line rate packet capture Line rate deep packet inspection (DPI) Applications using kernel-bypass networking Accurate benchmarking of CPU bound programs The term latency in this context refers to the time betwe
Zero-latency SQLite storage in every Durable Object2024-09-26 Traditional cloud storage is inherently slow, because it is normally accessed over a network and must carefully synchronize across many clients that could be accessing the same data. But what if we could instead put your application code deep into the storage layer, such that your code runs directly on the machine where the data is stor
Latency Numbers Every Programmer Should Know Visualisation by samwho, based on the work of Colin Scott.
New – ENA Express: Improved Network Latency and Per-Flow Performance on EC2 | Amazon Web Services
AWS News Blog New – ENA Express: Improved Network Latency and Per-Flow Performance on EC2 We know that you can always make great use of all available network bandwidth and network performance, and have done our best to supply it to you. Over the years, network bandwidth has grown from the 250 Mbps on the original m1 instance to 200 Gbps on the newest m6in instances. In addition to raw bandwidth, w
Improving Latency with @defer and @stream Directives | GraphQL
Rob Richard and Liliana Matos are front-end engineers at 1stDibs.com. They have been working with the GraphQL Working Group as champions of the @defer and @stream directives. The @defer and @stream directives have been a much anticipated set of features ever since Lee Byron first talked about it at GraphQL Europe 2016. For most of 2020, we have been working with the GraphQL Working Group to standa
Cloud Run adds min instances feature for latency-sensitive apps | Google Cloud Blog
Cloud Run min instances: Minimize your serverless cold starts One of the great things about serverless is its pay-for-what-you-use operating model that lets you scale a service down to 0. But for a certain class of applications, the not-so-great thing about serverless is that it scales down to 0, resulting in latency to process the first request when your application wakes back up again. This so-c
Code-splitting and minimal edge latency: the perfect match | Fastly
Fastly Fiddle, our code playground tool, is a React single-page app that uses the excellent Monaco IDE component that powers VS Code. Problem is, Monaco is huge. And most uses of Fiddle are read only. Do we really need to load a whole IDE to display some non-editable code? No! Is lazy loading code that's cached at the edge really fast? Yes! Can I stop asking rhetorical questions and tell you how t
This week I was debugging a misbehaving Python program that makes significant use of Python’s asyncio. The program would eventually take very long periods of time to respond to network requests. My first suspicion was a CPU-heavy coroutine hogging the thread, preventing the socket coroutines from running, but an inspection with pdb showed this wasn’t the case. Instead, the program’s author had mad
JSer.info #534 - TypeScript 4.3 Betaがリリースされました。 Announcing TypeScript 4.3 Beta | TypeScript 今までは、getterとsetterは同じ型であることが強制されていましたが、setterにgetterより幅広い型を指定できるようになっています。また、継承したメソッドをoverrideしていることを意味するoverrideキーワードが追加され、--noImplicitOverrideでチェックできるようになっています。 その他には、Template String Typeの改善、一部不完全だったPrivate Class Elements(fields/methods/accessors)のサポートが改善されています。 Private Class ElementsのサポートはRuntimeの変更も含まれる
This is a guest post by Domen Kožar. In this post I’ll dive into how low-latency garbage collection (GC) has improved developer experience for Cachix users. The need for low latency Cachix serves the binary cache protocol for the Nix package manager. Before Nix builds a package, it will ask the binary cache if it contains the binary for a given package it wants to build. For a typical invocation o
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Amazon Elastic File System Update – Sub-Millisecond Read Latency | Amazon Web Services
AWS News Blog Amazon Elastic File System Update – Sub-Millisecond Read Latency Amazon Elastic File System (Amazon EFS) was announced in early 2015 and became generally available in 2016. We launched EFS in order to make it easier for you to build applications that need shared access to file data. EFS is (and always has been) simple and serverless: you simply create a file system, attach it to any
A frontend take on Jeff Dean's "Latency Numbers Every Programmer Should Know". Web page load times and responsiveness to user action in web apps is a primary driver of user satisfaction–and both are often dominated by network latency. Latency itself is a function of the user's connection to the internet (Wifi, LTE, 5G), how far away the server is that the user is connecting to, and the quality of
Introducing Falcon: a reliable low-latency hardware transport | Google Cloud Blog
Google opens Falcon, a reliable low-latency hardware transport, to the ecosystem At Google, we have a long history of solving problems at scale using Ethernet, and rethinking the transport layer to satisfy demanding workloads that require high burst bandwidth, high message rates, and low latency. Workloads such as storage have needed some of these attributes for a long time, however, with newer us
MotivationI’ve been a long-time user of Xterm. I tried to switch to other terminal emulators several times because of Xterm’s broken Unicode support, especially regarding glyphs/emojis and multi-font substitution. These glyphs are part of many modern CLI tools and are often printed as blank squares in Xterm. More recently, I attempted to switch again, but every time I try, I’m discouraged by the a
GitHub - AutoMQ/automq: AutoMQ is a cloud-native alternative to Kafka by decoupling durability to cloud storage services like S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.
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How Discord Supercharges Network Disks for Extreme Low Latency
How Discord Supercharges Network Disks for Extreme Low Latency It's no secret that Discord has become your place to talk; the 4 billion messages sent through the platform by millions of people per day have us convinced. But text chat only accounts for a chunk of the features that Discord supports. Server roles, custom emojis, video calls, and more all contribute to the hundreds of terabytes of dat
New for Amazon SQS – Update the AWS SDK to reduce latency | Amazon Web Services
AWS News Blog New for Amazon SQS – Update the AWS SDK to reduce latency With Amazon SQS, you can send and receive messages between software components at any scale. It was one of the first AWS services I used and as a Solutions Architect, I helped many customers take advantage of asynchronous communications using message queues. In fact, Amazon SQS has been generally available since July 2006 and,
research.google この論文では、大規模な分散システムでは、まれなパフォーマンスの低下であっても、全リクエストのかなりの部分に影響を与えるとあります。 つまり大規模な分散システムではテールレイテンシの影響が大きくなります。 テールレイテンシは大きなパーセンタイルのレスポンス値のことです。(大きいというのがp99なのかp99.9なのかは文脈次第です) パーセンタイルの例としては、99 パーセンタイルのレスポンスタイムが 100 msとすると、平均して 100 リクエスト中の 99リクエストには 100 ms未満しかかからず、1 リクエストには 100 ms以上かかることを意味します。 例えば、各サーバが通常10msで応答し、99%のレイテンシーが1秒であるシステムを考えてみると、ユーザーのリクエストがそのようなサーバー1台だけで処理された場合、1/100の確率でユーザーのリクエス
Introduction To Low Latency Programming: Minimize Branching And Jumping
This post originally appears as a chapter in my new book: ‘Introduction To Low Latency Programming’, a short and approachable entry into the subject. Available now for purchase on Amazon. This chapter will discuss how branching and jumping in our code affects our runtime performance and how we can avoid them in our effort to reduce the latency of our programs. Branching refers to process execution
Investigating the impact of HTTP3 on network latency for search Dropbox is well known for storing users’ files—but it’s equally important we can retrieve content quickly when our users need it most. For the Retrieval Experiences team, that means building a search experience that is as fast, simple, and powerful as possible. But when we conducted a research study in July 2022, one of the most commo
GitHub - guycipher/k4: High-performance open-source, durable, transactional embedded storage engine designed for low-latency, and optimized read and write efficiency.
High speed writes and reads. Durability Optimized for RAM and flash storage (SSD) Variable length binary keys and values. Keys and their values can be any size that paired don't exceed available memory at time of operation. Write-Ahead Logging (WAL). System writes PUT and DELETE operations to a log file before applying them to K4. Atomic transactions. Multiple PUT and DELETE operations can be grou
表示遅延測定ツール「PC Gaming Latency Tester」を特注した話 - ゲーミングモニタの選び方[番外編] : 自作とゲームと趣味の日々
2021年04月07日00:00 （注：商品価格は執筆当時のものです。販売ページリンクにはアフィリエイトを含みます） 表示遅延測定ツール「PC Gaming Latency Tester」を特注した話 - ゲーミングモニタの選び方[番外編] wisteriear コメント(0) タグ ：#レビュー#モニタ_レビュー#ゲーミングモニタの選び方 スポンサードリンク ハイリフレッシュレートなゲーミングモニタのレビューで重要な表示遅延を簡単かつ正確に測定するため、表示遅延測定ツール「PC Gaming Latency Tester」をワンオフで特注しました。 ゲーミングモニタ、高RRディスプレイ搭載ゲーミングモバイル、ビデオキャプチャなど今後、当サイトで執筆するレビュー記事で使用するので参考文献的に紹介します。 表示遅延について まず大前提、”表示遅延”とは何かというと、マウス・キーボード・ゲーム
![表示遅延測定ツール「PC Gaming Latency Tester」を特注した話 - ゲーミングモニタの選び方[番外編] : 自作とゲームと趣味の日々](https://cdn-ak-scissors.b.st-hatena.com/image/square/e9d7cc3188f868b0873beffc9f8b824e161a9ae3/height=288;version=1;width=512/https%3A%2F%2Flivedoor.blogimg.jp%2Fwisteriear%2Fimgs%2Fe%2F4%2Fe49f91a6-s.jpg)
At Ably, we provide a realtime messaging service that aims to deliver messages between globally-distributed participants with the lowest latency possible. When powering apps that enable realtime collaboration, or require time-critical updates, low and consistent latency is essential. We recently deployed dedicated infrastructure for a new customer whose workload involved sporadic but highly time-c
Low Latency Optimization: Understanding Huge Pages (Part 1)
Latency is often a crucial factor in algorithmic trading. At HRT, a lot of effort goes into minimizing the latency of our trading stack. Low latency optimizations can be arcane, but fortunately there are a lot of very good guides and documents to get started. One important aspect that is not often discussed in depth is the role of huge pages and the translation lookaside buffer (TLB). In this seri
OBSとWowza Streaming Engineを使ってApple Low-Latency HLSライブストリーミング配信してみる | DevelopersIO
追加後、Saveボタンを押して保存し、ページの右上にあるRestartを押してVirtual Hostを再起動します Wowza Streaming EngineでLL-HLSを有効にする設定 Wowza Streaming EngineがLL-HLSストリームを生成する方法ですが、 Wowza Streaming Engine は CMAF packetizer(cmafstreamingpacketizer)を使用してLL-HLSストリームを生成します。packetizerは、LL-HLSに必要なビデオとオーディオの部分的なセグメントとして使用されるチャンクを作成します。LL-HLSストリームはfMP4コンテナフォーマットを使用し、HTTP/2 を介してプレイヤーに配信されます。 とドキュメントに記載されています。 以下の手順でLL-HLSストリームを生成できるように設定していきます。
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IO devices and latency — PlanetScale
Home | CloudPing - AWS Latency Monitoring
Zero-latency SQLite storage in every Durable Object
Latency Numbers Every Programmer Should Know
Latency in Asynchronous Python
2021-04-06のJS: TypeScript 4.3 Beta、hls.js v1.0.0(Apple Low-Latency HLS)、Storybook 6.2
Using GHC low-latency garbage collection in production
ffmpeg で low latency DASH server 作ってみた - Qiita
Latency numbers every frontend developer should know - Vercel
Terminal Latency
Tail Latencyについて - CubicLouve
Investigating the impact of HTTP3 on network latency for search
Optimizing global message transit latency: a journey through TCP configuration
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