low latency queuing

ensure low-latency multi-person audio and video interactive system, the other is a standard CDN live system, live system you already know, the following highlights the low-latency Interactive system features:1 Live system is a one-way data channel, and the low-

Facebook recently unveiled Apollo, a Paxos-like NoSQL database on Facebook. Built on the Apache Thrift 2 RPC framework, Apollo was developed as a tiered storage system, and all data was partitioned into Shard, very similar to the regional servers in HBase. Its greatest benefit is low-latency online storage, especially in flash and memory.Unlike storage for documents and key values, Apollo is a modified data

Background Introduction Sparrow's paper is included in Sosp 2013, on the Internet can also find a writer's talk ppt, it is worth mentioning that the author is a bit ppmm. She has previously published a case for Tiny Tasks in Compute Clusters, this article I did not read carefully, but at that time when looking at the mesos thickness and granularity pattern, the group has discussed this paper. Combined with her GitHub project, she found that she and Mesos,spark in the amp lab had a lot of roots i

Big Google is quic to see if it can combine the advantages of both protocols, while achieving low latency and high reliability and applying them to higher-security protocols. This article is to introduce the QUIC protocol in detail. Speaking from the TCP protocol Currently, the data transmission of the Web platform is based on the TCP protocol. The TCP protocol requires three handshakes before creating the

Brief introduction WebSphere MQ Low Latency Messaging (hereinafter called MQ LLM) is an IBM messaging product that delivers high-capacity, low-latency, reliable messaging on a variety of network architectures, designed to be published in a message-oriented middleware/ Subscription provides a One-to-many data transfer

Garbage collection optimization for high throughput and low latency Java applicationsHigh-performance applications form the backbone of modern networks. LinkedIn has many internal high-throughput services to meet user requests thousands of times per second. To optimize the user experience, it is important to respond to these requests with low latency.For example,

Original link: LinkedIn translation: Importnew.com-hejianiLink: http://www.importnew.com/11336.htmlHigh-performance applications form the backbone of modern networks. LinkedIn has many internal high-throughput services to meet user requests thousands of times per second. To optimize the user experience, it is important to respond to these requests with low latency.For example, one feature that users often use is to learn about dynamic information-a li

One > Modify handle numberUlimit–a1 "Modify the file: /etc/security/limits.conf - Span style= "color: #000000; font-size:14px;" > current session run Span style= "font-family:arial, ' Sans-serif '; color: #000000; font-size:14px;" >ulimit-a command cannot be displayed) 1. * Soft Nofile 32768 #limit the maximum number of file handles for a single process (System alert when this limit is reached)2. * Hard Nofile 65536 #limit the maximum number of file handles for a single process

Garbage collection optimization for high throughput and low latency Java applicationsHigh-performance applications form the backbone of modern networks. LinkedIn has many internal high-throughput services to meet user requests thousands of times per second. To optimize the user experience, it is important to respond to these requests with low latency.For example,

Latency of next-generation SSD controller based on low-density Inspection Author: Stephen BatesLatency Variability In the previous blog, I talked about how the Error Correction Code (ECCS) in the enterprise-level SSD controller is being converted to Low-Density Parity Check (Low-Density Parity Check. This article also

Application of C + + in low-latency trading systemIn the financial derivatives markets, market makers shoulder the obligation to quote for options Futures products (quoting)."Low latency" is crucial for such companies, and if you are faster than others, the same offer can be prioritized, the wrong offer can be withdraw

problem. Reference: http://www.ibm.com/?works/cn/linux/l-async /. However, some people on the Internet say that the AIO interface has a bug. There is not much time, and there is no time for in-depth research. It is still conservative to give up this idea. New technologies are risky and should be used with caution. Libeio should also be an option. Reference: http://rdc.taobao.com/blog/cs? P = 1524. It uses a thread pool to simulate asynchronous Io. The problem is that our program mainly writes f

Tags: department brings the role of market Ali to develop a point indicator ICAEvery time I saw the big brand of Motorola across the street, we thought about Google's $12.5 billion acquisition of Motorola Mobility, and then sold it to Lenovo for $2.9 billion. Google has made decisions that take long-term interest into account, and in this deal, Google has acquired Motorola's most valuable thousands of patents, a robust Android ecosystem. Google has built a solar power station in a region that oc

Configuration referenceHttps://github.com/simple-rtmp-server/srs/wiki/v2_CN_LowLatencyLatency Impact factorsEncoders: Different encoders (free or open source), the delay is also different.Streaming Media server: SRS2Streaming protocol: For example: RTMP is real-time high, http_flv is also high-real-time, HLS is not, the official said 60s can tolerate ...Player: VLC is slower than Ffplayer and player.Network: Of course, it is also related to the network, and the relationship is relatively large.V

: Incremental Update High Capacity Expanded support to cover the entire IBM Netezza®1000 Data Warehouse equipment product series. The DB2 analysis accelerator has now expanded from a 1/4-sized chassis to a 10-Chassis Netezza 1000 device. This shift shows that customers need large accelerators to work with high-capacity data warehouses and IBM System z®. DB2 Analytics Accelerator V2 was first released in October 2011. It supports 1/4, 1/2, or a full-size chassis, limiting the Accelerator to 96 pr

graphs in its "Oh, 85% delay reduction!!!" "Of praise. Today 16G of memory only requires $100, and CPUs have more and more cores, more and more hyper-threading. Ten years from now the hardware may become antique furnishings, and software built with go will need to scale out to accommodate more demands and challenges. With the ability to improve productivity on that hardware basis, Go's garbage collection design takes into account the first delay and easy-to-manipulate store. Go 1.5 is the first

to avoid concurrency. Synchronization of files is repeated concurrently.3. Business implementation1) rsync.sh synchronization script. The script implements checking for a synchronization process every 10 seconds. If not, start the synchronization process, or wait for the synchronization process to be in progress.#!/bin/bash#rsync All#每10秒检查一次, if there is no synchronization process, start the synchronizationIdx=1While [$idx-le 6];d oecho "Idx= $idx"Date#判断是否有正在同步的进程.Pid=ps -ef |grep rsync|grep

Original address: http://www.symphonious.net/2011/07/11/lmax-disruptor-high-performance-low-latency-and-simple-too/The LMAX disruptor is an ultra-high performance, low-latency message exchange between threads. It's a bit like a queue on steroids (but quite a lot of steroids) and are one of the key innovations used to m

-clogging as possibleWith non-blocking 0 the waiting data structures and algorithms become friends. Every time you use a lock, the stack will go deep into the operating system to mediate, each lock is a huge overhead. Typically, if you know what you are doing, you can bypass the lock by understanding the JVM,C11 or go memory model.10. As asynchronously as possibleAny processing, especially I/O, is not an absolute necessity for building a response, and should be implemented asynchronously beyond

Try another low-latency kernel-general Linux technology-Linux programming and kernel information. For more information, see the following. After Livid was updated to Ubuntu Studio, it was found that the kernel changed to 2.6.20-15-lowlatency, an optimized low-latency SMP kernel. Generally, we use the SMP kernel 2.6.20-