Lock free queue golang. Mar 12, 2024 · ZenQ A low-latency thread-safe queue in golang implemented using a lock-free ringbuffer and runtime internals Based on the LMAX Disruptor Pattern Features Much faster than native channels in both SPSC (single-producer-single-consumer) and MPSC (multi-producer-single-consumer) modes in terms of time/op More resource efficient in terms of memory_allocation/op and num_allocations/op evident while Mar 11, 2010 · Edit: Having read herb's DDJ article I can see a reduced lock queue that is pretty similar to the one I already had. Contribute to hawkli-1994/lockfreequeue development by creating an account on GitHub. This is the continuation of the lock-free single-producer single-consumer queue Not only we need to prevent race conditions between the producers and the consumers but also between producers and between Jun 16, 2020 · 标签: circular-queue golang lock-free mpmc ring-buffer 分类: algorithm golang 更新时间: June 16, 2020 许可信息: 本文采用 知识共享署名-非商业性使用-相同方式共享 4. Mar 8, 2025 · 使用无锁队列可以提高并发性能，避免传统锁机制的开销。下面是一个简单的无锁队列实现，以及在多线程环境中如何读取 result 的示例。无锁队列的基本实现以下是一个基于单向链表的无锁队列（Lock-Free Queue）示例：#incl Feb 21, 2021 · Code available on github. A simple benchmark was implemented to compare several MPSC queue implementations. A multi-producer multi-consumer queue is described in the second part. 6G, 8G ⚡️ lock-free utilities in Go. Simple lock-free queue written in golang. Aug 25, 2021 · 在使用Go进行多线程开发时，通常通过给队列加锁的方式避免并发读写带来的数据丢失或重复读取等问题，但在高并发条件下，加锁带来的性能降低也是必然的，因此希望通过实现lock-free queue 的算法实现无锁队列，提高程序性能。 通过lock-free queue ，实现无锁队列，进而提升Go程序性能 Apr 22, 2023 · Go 无锁编程 2023-04-22 Golang 并发编程 概述 锁是一种常见的同步机制，用来解决多个线程同时访问共享资源导致的数据竞争问题。在高并发场景下，锁的使用可能会成为性能瓶颈，因为线程需要频繁地加锁和释放锁，这会增加上下文切换开销并降低程序的吞吐量。 无锁编程（lock-free programming）是一种 Sep 14, 2024 · Performance Gains and Considerations Lock-free data structures typically offer better performance than their lock-based counterparts in highly concurrent systems due to the absence of lock contention. Contribute to xiaonanln/go-lockfree-queue development by creating an account on GitHub. Mar 5, 2025 · Explore bruceshao/lockfree, a high-performance, lock-free queue library in Go, optimized for low-latency and high-throughput applications! Jul 17, 2019 · NewStack creates a new lock-free queue. NewLockfreeQueue() // create a LockfreeQueue lfq. (See Is it possible to use Go's buffered channel as a thread-safe queue?) I am wondering how it's implemented. Dec 23, 2018 · 无锁队列 介绍 在工程上，为了解决两个处理器交互速度不一致的问题，我们使用队列作为缓存，生产者将数据放入队列，消费者从队列中取出数据。这个时候就会出现四种情况，单生产者单消费者，多生产者单消费者，单生成者多消费者，多生产者多消费者。我们知道，多线程往往会带来数据不 Jul 12, 2025 · Golang知识库，中国Golong语言开发者必备的知识库，涵盖一切关于Golang的编码、教程、技术、知识提供无限次数的免费专业级在线解答！ Apr 24, 2015 · Michael-Scott非阻塞队列算法，即MS-queue算法，是1 9 9 6 年由Maged . However I notice that there are papers at the end that can do the true lockless queue'ing using a double compare-and-swap (DCAS) operation. Contribute to unripemoth/lockfree development by creating an account on GitHub. Contribute to boostbob/lockfree-hashmap-list development by creating an account on GitHub. Jun 12, 2012 · Nobody expects a large application to be entirely lock-free. Contribute to maolonglong/lockfreequeue development by creating an account on GitHub. Here is my implementation: "errors" "sync/atomic" // and dequeue generic values. Golang lock-free Hashmap and List. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects. Package A low-latency thread-safe queue in golang implemented using a lock-free ringbuffer and runtime internals Based on the LMAX Disruptor Pattern Sep 13, 2024 · Thread Safety with Mutex To make the ring buffer safe to use in concurrent environments, we utilize a sync. Scott. We can also use defer to ensure the mutex will be unlocked as in the Value method. Lockfree multiple producer single consumer queue in golang - t3rm1n4l/go-mpscqueue A collection of lock-free data structures written in standard C++11 I'm doing different implementation of lock free queue data structures and I'm testing perfomances on a numa machine with 64 cores (128 threads). The final code can be found on my GitHub. A lock free MPSC - Exploring the transition from SPSC to MPSC and comparing throughput with JDK alternatives. 19 but I am getting a data race in my application. A queue is a collection of entities that are maintained in a sequence and can be modified by the addition of entities at one end of the sequence and the removal of entities from the other end of the sequence. This results in a substantial performance boost Feb 6, 2025 · go-ringbuf provides a high-performance, lock-free circular queue (ring buffer) implementation in golang. Sep 16, 2024 · In this article, we’ve explored some of the most common lock-free data structures: atomic variables, the Michael-Scott queue, Treiber stack, ring buffer, and linked lists. 1 什么是无锁队列无锁队列（Lock-Free Queue）是一种并发数据结构，它允许多个线程… Apr 23, 2023 · Lockfree 如果想使用低于go1. Push pushes a value on top of the stack. Lock free queue in golang. Jun 24, 2017 · 专注于Golang、Kubernetes、Nosql、Istio 设计实现ringbuffer无锁队列 (lock free queue) rfyiamcool 2017年6月24日 For information about the lock-free queue implementation, see 2. go-ringbuf provides a high-performance, lock-free circular queue (ring buffer) implementation in golang. Inspired by OpenJDK LongAdder circuit-breaker - Data structure to implement circuit breaker pattern to detect remote service failure/alive status. Jul 22, 2009 · Sutter's multiple-producer queue example isn't lock free -- there is a lock to serialize producers, and a lock to serialize consumers. Apr 22, 2023 · I am trying to implement this non-blocking queue from Michael and Scott. What are you trying to accomplish? Maybe there is a way of using atomic operations differently. 3 days ago · 缓冲通道与无锁队列的基本区别 Go 的 channel 有带缓冲和不带缓冲两种形式。带缓冲的通道可以在没有接收者时缓存一定数量的数据，而无缓冲通道必须同时有发送和接收协程才能完成通信。 相比之下，无锁队列（lock-free queue）通常基于原子操作实现，适用于高性能、低延迟的场景。这类队列常用于 A lock-free queue using go1. The lock-free queue implements a First-In-First-Out (FIFO) data structure using the Michael & Scott algorithm. Vyukov's queue is compared mainly against a basic doubly-linked intrusive list with a lock, referenced as tailq during tests. 9或branch：below-version1. Sharing mutable data kills concurrency, but using multicore systems efficiently often requires dividing work between active threads. Pointer[node[T]] value T. Contribute to fxeqxmulfx/golang-lock-free-queue development by creating an account on GitHub. e. library cmake embedded queue cpp buffer concurrency cpp11 embedded-systems ring-buffer lock-free inter-process-communication circular-buffer fifo dma circular-queue bipartite lock-free-queue Updated on Jan 18 C++ No amortization, just 1 CAS. This is however not very efficient due to multiple threads contending a single Apr 21, 2023 · 腾讯的老哥在社区中开源了 golang lockfree 的库，本人看到该库的设计很有意思，就参与该项目的开发改进，已经是该项目的 contributor 了. Apr 19, 2021 · 这么看来直接使用一些 atomic 操作，就能实现 lock-free 的 ring buffer 了！ Lock-Free Ring Buffer 前期准备 我们知道，在传统 SMP 架构下，确保多线程程序 memory ordering 的方式是采用 memory barrier + cache coherence protocol 来实现共享变量的访问在 cpu 不同核之间保持一致性与顺序 Mar 17, 2013 · Reading through a fine tuned Java lock free single producer/consumer queue implementation. poll () interface correctly as poll () can return null even if the queue is not empty. A common solution is to use mutex to synchronize access to data that are shared by multiple threads. Experiments on a 12-node SGI Challenge multiprocessor indicate that the new non-blocking Mar 2, 2015 · This is a general problem with lock contention and can be solved by implementing the queue as a lock-free data structure. This specific implementation is found May 11, 2023 · Here is my implementation of a lock free queue using CompareAndSwap operation. a lock-free queue implementation for golang. Sep 10, 2023 · Queue is a lock-free queue implemented with linked list, based on atomic compare-and-swap operations. 7K subscribers Subscribed Lock-free FIFO queue. Apr 28, 2020 · Lock Free Queue - Part II April 28, 2020 If implementing a lock-free queue for only one producer and consumer is tricky, adding more producers and consumers moves this to the next level. Push(100) // Push an element into the queue v 1 day ago · nbjobqueue is a non-blocking unbounded lock-free job queue for Golang. A primary factor in its success is Go’s robust support for Jun 25, 2021 · 谈到无锁队列，就不得不提 Michael 和 Scott 在 1996 年发表的论文 Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms，Java 中 ConcurrentLinkedQueue 也是基于该论文的算法实现。 Abstract Drawing ideas from previous authors, we present a new non-blocking concurrent queue algorithm and a new two-lock queue algorithm in which one enqueue and one de-queue can proceed concurrently. Nov 4, 2024 · The lock-free queue aims to reduce waiting states, allowing multiple threads to interact with the data structure without blocking each other. Mar 17, 2025 · Golang lock-free Hashmap and List. Which one is more suitable to implement a queue? Despite many warnings you'll find in this thread (which are fair), I have had practical and quite significant performance increases by switching from a mutex locked queue for a worker thread to a lock-free queue (folly's MPMCQueue specifically). CSDN写技术文章、展示代码比较方便，因此更多内容请移步：详解高性能无锁队列的实现。（觉得好的话，给个三连哈）一、无锁队列1. If you can find one, I'd be interested in that as well. The overall performance of LockfreeQueue is much better than List+Mutex (standard package). 0 国际许可协议 进行许可，转载请注明 hedzr 或出处链接。 分享 Twitter Facebook LinkedIn 向前 向后 Concurrent queues Lock-free (non-blocking) concurrent queue implementation on top of shared memory that supports multiple processes as producers and consumers, based on the ideas described at "Simple, fast, and practical non-blocking and blocking concurrent queue algorithms": Maged M. Lock-free SPSC Queue 此处使用一个 RingBuffer 来实现队列。 由于是 SPSC 型的队列，队列头部 head 只会被 Consumer 写入，队列尾部 tail 只会被 Producer 写入，所以 SPSC Queue 可以是无锁的，但需要保证写入的原子性。 template <class T> class spsc_queue { private: std::vector<T> m_buffer; Golang lock-free Hashmap and List. Cond To Fix My Lock Free Queue In Golang. It supports concurrent enqueue and dequeue operations from multiple goroutines without requiring explicit synchronization primitives like mutexes. Mar 7, 2023 · Using sync. These lock-free data structures are designed to provide concurrent access without relying on traditional locking mechanisms, improving performance and scalability in highly concurrent environments. Aug 14, 2020 · Concurrent Queue Algorithms，这篇文章回顾了并发队列的一些实现以及局限性，提出了一种非常简洁的lock-free queue的实现，并且还提供了一个在特定机器比如不存在CAS指令的机器上的two-lock queue算法。 这篇文章的被引用次数将近1000次。 Mar 24, 2022 · Posted by GolangNote Category: Golang笔记 Tags: Queue Golang Free Lock 队列 Comment (0) | PageView (3199) Lock-free data structures implemented with native Golang, based on atomic compare-and-swap operations. 简介 1. 18版本则可以引入tag:1. 该库使用 golang 开发，相比社区中其他 golang lockfree 来说，api 更友好，性能更好，其提供了各种的休眠阻塞策略，避免过度的 spin 引发 cpu 开销升高。 项目地址: https Aug 10, 2022 · Overview Package queue offers goroutine-safe Queue implementations such as LockfreeQueue (Lock free queue). By carefully planning data accesses, it is possible to reduce their synchronization overhead. Typically, we identify a specific set of lock-free operations out of the whole codebase. queue - Queue data structure, go implementation of JDKLinkedQueue and MutexLinkedQueue from Apr 9, 2022 · Package mpsc provides an efficient implementation of a multi-producer, single-consumer lock-free queue. There are a few third-party packages out there which provide lock free implementations of basic data structures. Jun 15, 2020 · 本系列文章的重点在于研究高吞吐量场景下环形队列的现代实现方法。也就是说，当在MPMC（Multiple Producers and Multiple Consumers）环境下，采用 SMP 架构（对称多处理器 Symmetric MultiProcessing 或者 多核 Multi-core processor）时，怎么样实现一个线程安全的环形队列——当然，这是基于 Golang 的。 Apr 24, 2020 · 最近看了 Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms1，是一篇 1996 年的关于高效并发队列的论文，是一篇简单而易懂的 lock-free 算法入门佳作。 Simple, Fast, and Practical Non-Blocking and Blocking Concurrent Queue Algorithms ↩ A basic lock free queue or linked list in golang should run at 10+ million ops per second. Oct 28, 2012 · Go's buffered channel is essentially a thread-safe FIFO queue. You should see that the counter is correctly incremented and decremented in a race-free manner. 1. M . L. go-queue 前一久看到一篇文章美团高性能队列——Disruptor，时候自己琢磨了一下；经过反复修改，实现了一个相似的无锁队列EsQueue，该无锁队列相对Disruptor，而言少了队列数量属性quantity的CAP操作，因此性能杠杠的，在测试环境：windows10，Core (TM) i5-3320M CPU 2. Lock-free FIFO queue. The operations of a queue make it a first-in-first-out (FIFO) data structure. dque is: persistent -- survives program restarts scalable -- not limited by your RAM, but by your disk space FIFO -- First In First Out embedded -- compiled into your Golang program synchronized -- safe for concurrent usage fast or safe, you choose -- turbo mode lets the OS decide when to write to disk has a liberal license -- allows any use, commercial or personal I love tools that do one Oct 30, 2023 · The use of atomic operations ensures that the counter is updated safely without the need for a mutex. Nov 26, 2024 · Package queue implements a lock-free concurrent FIFO queue using pre-allocated nodes. Herlihy & Shavit, authors of The Art of Multiprocessor Programming, tend to express such operations as class The paper introduces Ji y, a memory-efficient, wait-free multi-producers single-consumer system for fast and efficient data handling. I am trying to use the new atomic. Mutex to lock the buffer during writes and reads. 18 generics. This particular aspect of the Queue interface is ranted on separately in another Oct 3, 2019 · A Simple Lock-free Ring Buffer OCTOBER 3, 2019 | C++, UTILITY, MULTITHREADING A while back, I wanted to try my hand at writing a lock-free, multi-producer, multi-consumer ring-buffer. Pointer[node[T]] tail atomic. 为什么要写Lockfree 在go语言中一般都是使用chan作为消息传递的队列，但在实际高并发的环境下使用发现chan存在严重的性能问题，其直接表现就是将对象放入到chan中时会特别耗时， 即使chan的容量尚未打满，在严重时 Jan 6, 2024 · 1. For example, in a lock-free queue, there might be a handful of lock-free operations such as push, pop, perhaps isEmpty, and so on. Pop pops value from the top of the stack. 18 1. Michael and Michael L. However, i was going to have a go at implementing a lock-free version and i was wondering if any had any advice on how to get started? I have found couple of SO posts about the subject but they are quite old. MPMC (multiple producers and multiple consumers) enabled. Additionally, a Treiber stack [2] is implemented, requiring only one Compare-And-Swap (CAS) per insertion, reversing the stack during element removal. I suspect even with the parallelization the priority queue implementation is spending too much time reorganizing. 3. On my dual-core laptop enqueue/dequeue takes 75 cycles on average in a synthetic multi-threaded benchmark. Collection of high performance, thread-safe, lock-free go data structures. My goal was to design a concurrent queue that didn't use any locks, allocations, or thread-count dependent structures. Both algorithms are sim-ple, fast, and practical; we were surprised not to find them in the literature. Contribute to Kanbenn/lockfree-map development by creating an account on GitHub. FreeList的Alloc (给无锁队列分配结点)和Free操作 (这个Free操作是给无锁队列用来将结点放入FreeList中)也是无锁的。 FreeList自身的释放结点操作需要在安全的地方 (非竞争环境)进行。 FreeList的最大结点数等于无锁队列中元素最多时的元素个数。 May 12, 2010 · Can anyone suggest Go container for simple and fast FIFO/queue, Go has 3 different containers: heap, list and vector. I also do debug testing on my machine which has 4 cores Hello, I have a command queue I am using to pass commands from one thread to another and currently i am using a locked implemention. Jul 9, 2021 · The lock-free queue above implements an efficient concurrent queue via CAS, while this paper also implements a two-lock algorithm that can be applied to multiprocessors without atomic operations. Is it lock-free like Jul 12, 2024 · 以下是一个简单的无锁队列（lock-free queue）的示例代码，使用了原子操作来保证线程安全性。 这个示例使用 C++11 的原子操作库。 @darkcminor: You are aware, that you are using a lock to implement an essential utility function for your queue, therefore it isn't a lock-free queue! Jan 10, 2025 · Go (also known as Golang) has become one of the most popular programming languages for building scalable, high-performance software. No dynamic memory allocation/management during operation. Contribute to hlts2/gfreequeue development by creating an account on GitHub. Apr 8, 2022 · go-ringbuf provides a high-performance, lock-free circular queue (ring buffer) implementation in golang. Michael and M. Contribute to golang-design/lockfree development by creating an account on GitHub. Contribute to dustinxie/lockfree development by creating an account on GitHub. If mutable data is isolated, there is no need to take a lock before modifying it as we are assured to be the only one currently accessing it Mar 22, 2020 · Lock-Free Queue - Part I While implementing a bounded queue or ring buffer in a single-thread universe is relatively easy, doing the same when you have two threads, the implementation of a lock-free queue is more challenging. 0. Has anyone implemented a queue using cmpxchg8b (or cmpxchg16b for that matter)? Star 670 Code Issues Pull requests A thread-safe queue faster and more resource efficient than golang's native channels go golang optimization concurrency ringbuffer low-latency lock-free fastest high-throughput memory-efficient thread-safe spsc-queue mpsc-queue highly-concurrent zero-allocations zenq Updated on Mar 11, 2024 Go Golang lock-free Hashmap and List. Feb 11, 2022 · Package lockfreequeue implements a lock-free queue with go1. 前一久看到一篇文章美团 高性能队列——Disruptor，时候自己琢磨了一下；经过反复修改，实现了一个相似的无锁队列EsQueue，该无锁队列相对Disruptor，而言少了队列数量属性quantity的CAP操作，因此性能杠杠的，在… golang lock free queue. type LockFreeQueue struct { capacity int list []int top int32 numPopOps int32 } func (lfq * About High-performance lock-free queue (Disruptor 1400/s) with strict test golang queue cas golang-library golang-package Readme Activity We can define a block of code to be executed in mutual exclusion by surrounding it with a call to Lock and Unlock as shown on the Inc method. For details about shared atomic utilities, see 2. adder - Data structure to perform highly-performant sum under high contention. In this first part will analyse and implement a lock-free single-producer single-consumer queue. Producers and consumers are separated from each other (as in the two-lock queue), i. Note that the implementation discussed does not conform to the Queue. MPMC (multiple-producers and multiple consumers) enabled. GitHub is where people build software. Basic example lfq := queue. Jan 27, 2015 · The basic building block would be inserting and removing elements lock freely in a single array, then you could work your way to circular buffers and perhaps automatically scaling buffers. Pointer types introduced in Go 1. Contribute to milkymenu/lockfree development by creating an account on GitHub. head atomic. The queue is designed for high-performance concurrent access without locks, making it suitable for multi-producer, multi-consumer scenarios. LockfreeQueue LockfreeQueue is a goroutine-safe Queue implementation. Anthony GG 76. Contribute to bruceshao/lockfree development by creating an account on GitHub. Whether this will actually be useful to you can only be determined with some benchmarking. Contribute to scryner/lfreequeue development by creating an account on GitHub. Scott提出的，是最为经典的并发FIFO队列上的算法，目前很多对并发FIFO队列的研究都是基于这个算法来加以改进的。在共享内存的多核处理器上，这种基于C. lock-free queue and other implementations. I thought it was a cool trick. I’ve never heard of lock free arrays, but I read a book on concurrent algorithms a while back that creates log (n) locks to lock the array operations, but still free other parts of the array. 1996. Jul 12, 2021 · lockfree Golang lock-free concurrent Hashmap Table of Contents Overview Hashmap Queue Stack Benchmark Overview Golang's native data structures (such as map, List) are not designed to be thread-safe at first place. In a FIFO data structure, the first element added to the queue will be the first one to be removed. High-performance lock-free queue in golang (multiple producers, multiple consumers) Since I develop this package after reading through yireyun's code, The project look just like yireyun/go-queue and I also used some code from yireyun's project. As it is unbounded, care must be taken to avoid memory exhaustion if adding faster than reading Jul 18, 2020 · 下面将依据前面的背景知识实现一个无锁的（Lock-Free）环形 队列（Circular Queue，Ring Buffer），尽可能地解除各种竞争状况。 Nov 8, 2024 · Go语言（Golang）以其简洁、高效和强大的并发性能，成为了开发高性能应用程序的首选语言之一。 本文将深入探讨如何使用Golang实现一个高效的无锁队列，并分享一些最佳实践，以提升并发编程的性能。 什么是无锁队列？ 无锁队列（Lock-Free Feb 28, 2025 · golang,go,编程,博客,开源bruceshao/lockfree 是一个基于 Go 语言实现的高性能无锁队列库，旨在通过无锁（Lock-Free）算法提升多线程环境下的并发性能。其设计灵感来源于 Java 的 Disruptor 框架，但针对 Go 语言的特性进行了优化，适用于高吞吐量、低延迟的场景，如实时数据处理、高频交易系统等。以下是该 lockfree queue. Sep 6, 2012 · Here is my code: package main import ( "sync/atomic" "unsafe" "sync" "fmt" "time" ) const ( MAX_DATA_SIZE = 100 ) // lock free queue type Queue struct { head unsafe. Contribute to alphadose/golang-queue-impl development by creating an account on GitHub. do not touch the same data while queue is not empty. ⚡️ lock-free utilities in Go. lbwr pomid unghkz zllgp dydbp pufazn joyy ndup zsbdal qjr