latency

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In South Africa, carrier pigeon faster than broadband

Translation: That's about 180KbpsFor the DSL speed. And given that they were uploading from another DSL connection, that's pretty close to a common upload cap of 256kbps in the US. Would that be called Beaker Net...instead of Sneaker Net?RE: In South Africa, carrier pigeon faster than broadbandHmmm.Maybe Linux...

Tags: Broadband Internet, Network technology, carrier, bandwidth, broadband, latency

Discussion threads 2009-09-10

Matchmaking for Online Games and Other Latency-Sensitive P2P Systems

The latency between machines on the Internet can dramatically affect users' experience for many distributed applications. Particularly, in multiplayer online games, players seek to cluster themselves so that those in the same session have low latency to each other. A system that predicts latencies between machine pairs allows such matchmaking...

Tags: Latency, Online Game, Matchmaking, Games, Personal Technology

White papers 2009-08-21

TT Livescan 1.0.0.43 (Windows)

TT Livescan is an online malware scanner that implements a database of over 4 million signatures (as of June 15, 2009). The scantimes are limited almost entirely by internet latency. However, if you are using a sattelite ISP, it is not recommended that you use this program due to latency...

Tags: Latency, Microsoft Windows, TT Livescan, Scantime, Internet, Scanners, Internet Service Providers (ISPs), Hardware, Peripherals

Software downloads 2009-05-11

New online distribution could upend the gaming world

New online distribution could upend the gaming worldOh no!Does this mean we don't need Windows to play our favorite games anymore? Is this a nail in the coffin or a stake in the heart for Microsoft? Please, MS fanboys. We want to know.Like so many other...This will...

Tags: Games, game

Discussion threads 2009-03-24

Building a Low Latency Infrastructure for Electronic Trading

As the global financial markets continue to shift towards electronic trading, the speed at which trading is able to take place establishes the winners and the losers among participants in the trading chain. Latency, wherever and however it is introduced, is the enemy of speed. Market participants are continuously driving...

Tags: Latency, Sun Microsystems Inc.

White papers 2009-02-01

Where flash belongs

Putting flash into disk packaging, while convenient, is sub-optimal. Disk latency is so great that no one worries about adding a few hundred microseconds to an I/O. But once you've got low-latency storage those microseconds start to add up. But I didn't really get the underlying advantage...

Tags: Disk, Latency, I/O, Disk Latency, Robin Harris

Blog posts 2008-11-10

Latency Equalization: A Programmable Routing Service Primitive

Today the Internet is the primary medium for deploying new real time services such as gaming and distributed online live music concerts. Different network services have different expectations from the routing infrastructure. Some network services require conventional routing paths optimized for low latency or low congestion. However, real-time interactive services...

Tags: Latency, Network, Network Service, Association For Computing Machinery, Networking

White papers 2008-08-22

Merits of Data Reuse Hints

Traditionally, much of the I/O system architecture and design was done with assumption that I/O data rates and latencies are very large when compared to throughput and latencies observed inside a CPU core or the memory subsystem. This has changed with the advent of higher data rates, for example 10...

Tags: Latency, I/O, Memory Bandwidth, CPU

White papers 2008-08-01

Latency Fixer AU 1.0.2 (Mac)

The plug-in reports to the host application that it has a latency (controlled by the plug-in parameters) but does not actually apply any processing to the audio signal. This causes the host to use its own latency compensation to advance the audio fed into the plug-in by the requested amount....

Tags: Audio, Apple Macintosh, Latency, Plug-in, Expert Sleepers

Software downloads 2008-06-12

GameRail Chooses Dell and Achieves Up to an 80 Percent Reduction in Latency for a Faster Gaming Experience

Founded in 2006, St. Louis, Missouri-based GameRail has been working to solve online gamers connectivity and gaming quality challenges. To minimize the possibility of service quality degradation before users reach the GameRail network, the company must locate gateways in optimal locations known as carrier hotels. The company deployed Dell for...

Tags: Dell Computer Corp., Latency, GameRail, Games, Personal Technology

Case studies 2008-04-01

Optimizing Request Denial and Latency in an Agent-Based VPN Architecture

Agent-Based Virtual private networks Architecture ABVA refers to the environment where a third-party provider runs and administers remote access VPN service for organizations that do not want to maintain their own in-house VPN servers. This environment presents interesting management challenges for an ABVA provider. This paper considers the problem of...

Tags: Latency, Agent, Environment, Server, University Of Missouri, VPN Server, Real Estate, VPNs, Telecommunications, Business Operations, Networking

White papers 2008-04-01

Gb Ethernet Protocols for Clusters: An OpenMPI, TIPC, GAMMA Case Study

Gigabit Ethernet is a standard feature of cluster machines. Provision of fast network interconnects is negated if communication software cannot match the available throughput and latency. Transparent Inter Process Communication TIPC has been proposed as an alternative to TCP in terms of reduced message latency and system time. This study...

Tags: Latency, TCP, Transparent Inter Process Communication, GAMMA User-Level Network Interface, Ethernet, Tcp/Ip, Networking, Performance Management, Network Technology, Human Resources, Workforce Management

White papers 2008-03-17

Why Satellite Internet service is so slow

Why Satellite Internet service is so slowReal world is worse.Ping statistics for 75.104.128.61: Packets: Sent = 25, Received = 22, Lost = 3 (12% loss),Approximate round trip times in milli-seconds: Minimum = 626ms, Maximum = 3690ms, Average = 1385msThis is the nameserver within WildBlue's...

Tags: Network technology, Real World, Embarq, satellite, Satellite Internet Service, satellite Internet, latency

Discussion threads 2008-02-24

Build a 10 Gbit home network for $1100

Build a 10 Gbit home network for $1100Necessary?I'm not sure even the "hardcore gamer" needs a 10Gbit home network. Heck, I stream HD content and I don't even have a need for a gigabit network... yet.Unless you're hammering the bejesus out of your network, it's not necessary. Neat though it...

Tags: NETWORKING, Games, GigE, latency, network, Gbit home network, GBit, home network

Discussion threads 2008-01-31

High-Bandwidth Address Translation for Multiple-Issue Processors

In an effort to push the envelope of system performance, microprocessor designs are continually exploiting higher levels of instruction-level parallelism, resulting in increasing bandwidth demands on the address translation mechanism. Most current microprocessor designs meet this demand with a multi-ported TLB. While this design provides an excellent hit rate at...

Tags: Design, Latency, Microprocessor, University Of Wisconsin-Madison, Semiconductors, Processors, Hardware, Components

White papers 2008-01-01

Efficiently Monitoring Bandwidth and Latency in IP Networks

Effective monitoring of network utilization and performance indicators is a key enabling technology for proactive and reactive resource management, flexible accounting, and intelligent planning in next-generation IP networks. This paper addresses the challenging problem of efficiently monitoring bandwidth utilization and path latencies in an IP data network. Unlike earlier approaches,...

Tags: Bandwidth, Latency, Network, Monitoring, Kent State University, IP, IP Network, Networking, Network Technology

White papers 2008-01-01

DB2 on z/OS and Single Round-Trip J0 With Performance Enhancements in EMC Enginuity 5772+

The SRDFS single round-trip enhancement can reduce latency in an SRDFS Fibre Channel environment based on distance and size of the I/O. This reduction improves response time for I/O. by decreasing disconnect time. The response time decrease for DB2 for z/OS logs may improve customer service levels in existing SRDFS...

Tags: Latency, Performance, I/O, IBM z/OS, EMC Corp., IBM DB2, Storage, Operating Systems, Servers, Hardware, Software

White papers 2008-01-01

Design Best Practices for Latency Optimization

The approach to minimize latency must be a holistic effort that takes into consideration the entire market data system from end-to-end and focuses on reducing latency throughout the design. This whitepaper addresses options for mitigating key sources of latency within financial data network implementations. Topics surveyed include propagation delay, processing...

Tags: Data Network, Latency, Optimization, Best Practice

White papers 2007-12-20

Understanding TCP Over TCP: Effects of TCP Tunneling on End-to-End Throughput and Latency

TCP tunnel is a technology that aggregates and transfers packets sent between end hosts as a single TCP connection. By using a TCP tunnel, the fairness among aggregated flows can be improved and several protocols can be transparently transmitted through a firewall. Currently, many applications such as SSH, VTun, and...

Tags: Latency, TCP, Osaka University, Tcp/Ip, Networking

White papers 2007-11-16

Avistar's videoconf client does multiple streams, dynamically throttles bandwidth usage

Over the last few months or so at ZDNet, we've been playing around with various IP-based videoconferencing options in hopes of finding some way to leverage the video capabilities for pumping content between locations for usage in the videos we produce on line. For example, we'd like to have...

Tags: Latency, Network, Problem, Video, Avistar, Corporate Communications, Networking, Marketing, David Berlind

Blog posts 2007-10-25