Search Results for "latency" - Page 6
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Showing 192 open source projects for "latency"
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FiloDB
Distributed Prometheus time series database
...Support for indexing and fast querying over flexible tags for each time series/partition, just like Prometheus. Holds a huge amount of data in-memory thanks to columnar compression techniques. Designed for highly concurrent, low-latency workloads such as dashboards and alerting. Data immediately available for querying once ingested. -
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CAT
CAT is the basic component of the server project
...It offers real-time dashboards showing throughput, response times, error rates, and service dependency graphs to help operations and development collaborate on reliability issues. In addition to metrics, it enables tracing—propagating context across RPC boundaries so problems like latency spikes or failed calls can be traced end-to-end. Alert rules and anomaly detection can be defined to notify teams proactively. The system supports multiple data backends and ingestion pipelines to collect data from JVM, C/C++, Python, and other ecosystems. With the collected data, Cat supports analysis of hotspots, trending anomalies, and capacity planning to drive continuous reliability improvements. -
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Serverless Next.js Component
Deploy your Next.js apps on AWS Lambda@Edge via Serverless Components
A zero-configuration Next.js 10/11 serverless component for AWS Lambda@Edge aiming for full feature parity. Since Next.js 8.0, serverless mode was introduced which provides a new low-level API that projects like this can use to deploy onto different cloud providers. However, Next.js doesn't provide the full serverless routing logic, hence why this project is needed to fill the gap. The long-term vision is to allow you to self-host with various clouds, starting with AWS. This project is a... -
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CDN Up and Running
CDN Up and Running - Building a CDN from Scratch to Learn about CDN
...The project uses technologies such as Nginx, Lua, Docker, Prometheus, and Grafana to simulate realistic CDN environments and monitoring systems. It also explores performance considerations, including latency simulation, load balancing, and scalability. By integrating observability tools, it enables users to analyze system behavior and performance metrics. -
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Speed-Test
Test your internet connection speed and ping using speedtest.net
Speed-Test is a command-line tool that allows users to measure their internet connection speed directly from the terminal, providing a quick and convenient way to assess download and upload speeds. -
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TengineKit
TengineKit - Free, Fast, Easy, Real-Time Face Detection
Free, Fast, Easy, Real-Time Face Detection & Face Landmarks & Face Attributes & Hand Detection & Hand Landmarks & Body Detection & Body Landmarks & Iris Landmarks & Yolov5 SDK On Mobile. TengineKit is an easy-to-integrate AI algorithm SDK. At present, it can run on various mobile phones at very low latency. We will continue to update this project for better results and better performance! -
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Volley
HTTP library that makes networking for Android apps
...Out of the box it supports JSON, string, and image requests, plus an extensible Request/Response model for custom payloads. Volley emphasizes responsiveness: transparent caching and de-duplication of in-flight requests help reduce latency and bandwidth usage. Error handling, retries with backoff, and request prioritization are first-class, making it easier to handle flaky mobile networks. While Android has other HTTP stacks, Volley’s value is in opinionated, high-level primitives that fit common app patterns without pulling in heavy dependencies. -
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SPSCQueue.h
A bounded single-producer single-consumer wait-free queue
...The queue provides blocking and nonblocking insertion methods along with direct access to the element at the front. Items can be inserted through copy, move, or in-place construction. Benchmarks published by the project show lower latency and higher throughput than several comparable queue implementations on the tested hardware. Its fixed-size structure avoids repeated allocation during normal queue operations. The header-only design makes it useful for real-time, low-latency, and producer-consumer applications where predictable synchronization overhead matters. -
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NATS HTTP Round Tripper
This is a Golang http.RoundTripper that uses NATS as a transport
...It exposes an API compatible with the common “RoundTripper” abstraction, enabling developers to route request/response traffic through NATS subjects rather than traditional HTTP connections. This pattern lets services running in distributed environments take advantage of NATS’ low latency and flexible topology while retaining familiar client semantics. It can be an effective bridge for teams migrating from synchronous REST calls to a message-driven fabric without rewriting every call site. Because the transport is swappable, it promotes clean separation between business logic and the underlying network. The result is an incremental pathway to evented architectures with the ergonomics of conventional request/response programming. -
PRTG Catches Network Issues Before They Cause DowntimeReactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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speedtest-cli
Command line interface for testing internet bandwidth using speedtest
Command line interface for testing internet bandwidth using speedtest.net. It is not a goal of this application to be a reliable latency reporting tool. Latency reported by this tool should not be relied on as a value indicative of ICMP style latency. It is a relative value used for determining the lowest latency server for performing the actual speed test against. Speedtest CLI brings the trusted technology and global server network behind Speedtest to the command line. ... -
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1m-go-tcp-server
Benchmarks for implementation of servers
...The repository includes implementations based on goroutines per connection, single epoll, multiple epoll loops, prefork design, worker pools, and Reactor-style event handling. It also includes client implementations and specialized benchmarks for throughput, latency, I/O-bound workloads, and CPU-bound workloads. The project documents Linux tuning values such as file descriptor limits and TCP settings needed for extreme connection counts. It is most useful for engineers studying high-concurrency networking tradeoffs in Go. -
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IOS13-SimulateTouch
iOS Automation Framework iOS Touch Simulation Library
A system-wide touch event simulation library for iOS 11.0 - 14. This library enables you to simulate touch events on iOS 11.0 - 14 with just one line of code! Currently, the repository is mainly for programmers. In the future, I will make it suitable for people who do not understand how to code. -
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Caramel
Functional language for building type-safe applications
...It is built in OCaml and maintained by Abstract Machines. Caramel leverages the OCaml compiler, to provide you with a pragmatic type system and industrial-strength type safety, and the Erlang VM, known for running low-latency, distributed, and fault-tolerant systems used in a wide range of industries. Excellent type inference, so you never need to annotate your code. Supports sources in OCaml (and soon Reason syntax too). Caramel aims to make building type-safe concurrent programs a productive and fun experience. Caramel should let anyone with existing OCaml or Reason experience be up and running without having to relearn the entire language. ... -
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...When JUnit is invoked by an IDE, build script or build server, ContiPerf activates, performs the tests and creates an HTML report. The report provides a detailed overview of execution, requirements and measurements, even providing a latency distribution chart. A large feature set for execution settings and performance requirements is available, e.g. Ramp up, warm up, individual pause timing, concurrent exection of test groups and more.
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Ethr
Ethr is a comprehensive network measurement tool for TCP, UDP & ICMP
...For latency measurements, it is similar to latte on Windows or sockperf on Linux. -
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peertalk
iOS and Mac Cocoa library for communicating over USB
peertalk is a small Cocoa library for iOS and macOS that enables apps to communicate over USB (and also supports TCP), with an emphasis on simplicity and low-latency connections. The project is aimed at scenarios where you want a reliable, direct link between a Mac app and an iOS app without relying on Wi-Fi discovery, manual hostnames, or network exposure. A key motivation is that a USB link is inherently constrained to the devices at each end of the cable, which can make the communication model feel more contained and straightforward for certain tooling or companion-app setups. ... -
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LAppS
Lua Application Server for micro-services with default communication
This is an attempt to provide very easy-to-use Lua Application Server working over WebSockets protocol (RFC 6455). LAppS is an application server for micro-services architecture. It is build to be highly scalable vertically. The docker cloud infrastructure (kubernetes or swarm) shall be used for horizontal scaling. LAppS has most scallable WebSockets server out there. LAppS is the same thing to WebSockets as the Apache or Nginx are to HTTP. LAppS does not supports HTTP (though it supports... -
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XIVO
X Inertial-aided Visual Odometry
...It is a simplified version of Corvis [Jones et al.,Tsotsos et al.], designed for pedagogical purposes, and incorporates odometry (relative motion of the sensor platform), local mapping (pose relative to a reference frame of the oldest visible features), and global mapping (pose relative to a global frame, including loop-closure and global re-localization, this feature, present in Corvis, is not yet incorporated in XIVO). XIVO runs at 140FPS on stored data (here from a RealSense D435i sensor) or on live streams with a latency of around 1-7ms, depending on the hardware. It takes as input video frames from a calibrated camera and inertial measurements from an IMU and outputs a sparse point cloud with attribute features and 6 DOF pose of the camera. It performs auto-calibration of the relative pose between the camera and the IMU as well as the time-stamp alignment. -
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OpenResty SystemTap Toolkit
Real-time analysis and diagnostics tools for OpenResty
The openresty-systemtap-toolkit is a collection of SystemTap-based scripts designed for real-time analysis and diagnostics of OpenResty and its core components, including NGINX, LuaJIT, and ngx_lua. It provides developers and system administrators with tools to trace performance bottlenecks, memory usage, request distribution, regex execution, Lua execution, and file I/O behaviors in production systems. The toolkit helps identify leaks, analyze TCP queues, inspect shared memory usage, and... -
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flatend
Quickly build microservices using p2p networking in NodeJS/Go
Flatend is a fast, lightweight edge server and microservice runtime built in Go, designed for simplicity and high concurrency. It uses a decentralized service discovery model that allows nodes to communicate over UDP or QUIC with minimal setup, making it ideal for low-latency APIs and distributed systems. Flatend provides a clean developer experience and is optimized for environments where traditional service meshes or orchestration platforms are too heavy. It supports dynamic peer discovery, routing, and load balancing out of the box. -
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PerfKit Benchmarker
PerfKit Benchmarker (PKB) contains a set of benchmarks
PerfKitBenchmarker is an open-source benchmarking framework designed to measure and compare the performance of cloud infrastructure across multiple providers in a consistent and reproducible way. It allows users to evaluate metrics such as latency, throughput, provisioning time, and system performance using a standardized set of benchmarks. The tool supports a wide range of environments, including major cloud platforms, Kubernetes clusters, and even local hardware, making it highly versatile for performance analysis. It simplifies the process of running complex benchmarks by providing unified command-line workflows that handle resource provisioning, execution, and result collection. ... -
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exchange-core java
Ultra-fast matching engine written in Java based on LMAX Disruptor
...Goldman Sachs GS Collections), Real Logic Agrona, OpenHFT Chronicle-Wire, LZ4 Java, and Adaptive Radix Trees. HFT optimized. Priority is a limit-order-move operation mean latency (currently ~0.5µs). Cancel operation takes ~0.7µs, placing new order ~1.0µs. Pipelined multi-core processing (based on LMAX Disruptor): each CPU core is responsible for certain processing stage, user accounts shard, or symbol order books shard. -
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sysbench
Scriptable database and system performance benchmark
...It is most frequently used for database benchmarks, but can also be used to create arbitrarily complex workloads that do not involve a database server. extensive statistics about rate and latency is available, including latency percentiles and histograms. Low overhead even with thousands of concurrent threads. sysbench is capable of generating and tracking hundreds of millions of events per second. New benchmarks can be easily created by implementing pre-defined hooks in user-provided Lua scripts. Can be used as a general-purpose Lua interpreter as well, simply replace #!... -
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MPMCQueue.h
A bounded multi-producer multi-consumer concurrent queue
...The implementation focuses on high-throughput concurrent access while avoiding conventional queue locking patterns. It has been used in production systems including game engines and low-latency trading infrastructure. Testing combines single-threaded correctness checks with multithreaded fuzz testing under heavy contention. The queue correctly manages object construction and destruction while coordinating concurrent producers and consumers. Its small header-only design makes it straightforward to embed in performance-sensitive C++ projects. -
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systress
System stress to evaluate Linux system latency
SYSTRESS a.k.a. SYstem STRESS is a tool derived from the famous cyclictest(8) tool. Like cyclictest(8), SYSTRESS main focus is latency evaluation on Linux systems while running loading activities. This is achieved through a configuration file for flexibility, fine-grained setup and reproducible test conditions.
