latency

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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

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

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

Apple Broadband Tuner (dmg)

The Broadband Tuner allows you to take full advantage of very high speed FiOS based Internet connections that have a high latency. The installer tweaks some system parameters. There is an optional uninstaller that can be used to restore the settings that were in effect at the time just before...

Tags: Latency, Broadband, Buffer, Apple Inc., Broadband Tuner, Installer, System Parameter, Modems, Tcp/Ip, Networking, Hardware, Components

Software downloads 2007-11-28

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, 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

Low Latency 10 GbE Switching for Data Center, Cluster and Storage Interconnect

As the data center continues to evolve to meet rapidly escalating demands for higher levels of performance and resource virtualization, three rather distinct networking requirements have emerged. The typical server in a high performance data center may require connection to three switching fabrics: a LAN for connecting users and general...

Tags: Force10 Networks Inc., Data Center, Latency, Fabric, Data Centers, Storage, LANs, Networking, Hardware, Data Management

White papers 2007-09-19

Latency in Grid Over Optical Burst Switching With Heterogeneous Traffic

Optical Burst Switching OBS has been proposed as the next generation optical network for grid computing. This paper envisions a heterogeneous Grid served by an Optical Burst Switching framework, where grid traffic co-exists with IP and/or a 10 GE based traffic to achieve economy of scale. This paper addresses the...

Tags: Latency, Traffic, Grid, Optical Burst Switching

White papers 2007-09-07

Microsoft Exchange Server User Monitor (msi)

Use the Microsoft Exchange Server User Monitor to gather real-time data to better understand current client usage patterns, and to plan for future work. Administrators can view several items, including IP addresses used by clients, versions and modes of Microsoft Office Outlook, and resources such as CPU usage, server-side processor...

Tags: Monitor, Latency, Microsoft Exchange Server, Server, Microsoft Corp., E-mail Servers, Groupware, Enterprise Software, Software

Software downloads 2007-08-30

Akamai beefs up its HD distribution capabilities

Via an interview with Akamai Chief Technology Officer Mike Afergan, Om's all over Akamai Technologies' announcement yesterday that via enhancements to its Content Delivery Network, it now feels more than up to the task of delivering high-def video over the Web."While broadband service providers like Verizon are putting fiber-based broadband...

Tags: Server, Video, Akamai Technologies Inc., HD, Russell Shaw

Blog posts 2007-08-28

HTTP Transfer Latency Over SCTP and TCP in Slow Start Phase

Current web applications use HTTP Hyper Text Transfer Protocol over TCP Transmission Control Protocol to retrieve objects over the Internet. SCTP Stream Control Transmission Protocol is a recently proposed transport protocol with very similar congestion control mechanisms as TCP, except the initial congestion window during the slow start phase. This...

Tags: HTTP, Latency, TCP, Tcp/Ip, Networking

White papers 2007-07-17

Stupid FioS broadband tricks

Stupid FioS broadband tricksFix your typoI've had 15 kbps since the early 90's.So where is this?Those numbers are nice and all, but really of little value without knowing where you're getting this service. Little Rock, AK? Tijuana? Ontario?I thought of FIOS...But to be honest and i know this is unusual,...

Tags: Network technology, latency, broadband, Fios, cable, Kbps

Discussion threads 2007-07-13

Akamai provides new visibility into Internet comings and goings

The browsing public can now get a free, real-time peek into the operating statistics for Internet network traffic, as well as monitor attack traffic and latency snafus, thanks to Akamai Technologies, Inc.Akamai, which maintains a globally distributed platform to cache and accelerate online content, media and applications, this week launched...

Tags: Web Technology, Software Infrastructure, Internet, content delivery network, Akamai

Blog posts 2007-06-08