mTCP - Scalable User-level TCP Stack
What is mTCP? mTCP is a high-performance user-level TCP stack for multicore systems. Scaling the performance of short TCP connections is fundamentally challenging due to inefficiencies in the kernel. mTCP addresses these inefficiencies from the ground up - from packet I/O and TCP connection management all the way to the application interface. Besides adopting well-known techniques, our mTCP stack
Apple opens Multipath TCP in iOS11 - Tessares
Apple opens Multipath TCP in iOS11 Jun 09 2017 MPTCP application 0 comments During WDC, Apple engineers present new innovations that will appear in future releases of iOS. During the Advances in Networking session, Stuart Cheshire, David Schinazi and Christoph Paasch presented the networking innovations in the forthcoming iOS 11. Stuart Cheshire starts the introduction with “very exiting news abou
tcp: add NV congestion control [LWN.net]
This is a request for comments. TCP-NV (New Vegas) is a major update to TCP-Vegas. An earlier version of NV was presented at 2010's LPC (slides). It is a delayed based congestion avoidance for the data center. This version has been tested within a 10G rack where the HW RTTs are 20-50us. A description of TCP-NV, including implementation and experimental results, can be found at: http://www.brakmo.o
[net-next,14/14] tcp_bbr: add BBR congestion control - Patchwork
This commit implements a new TCP congestion control algorithm: BBR (Bottleneck Bandwidth and RTT). A detailed description of BBR will be published in ACM Queue, Vol. 14 No. 5, September-October 2016, as "BBR: Congestion-Based Congestion Control". BBR has significantly increased throughput and reduced latency for connections on Google's internal backbone networks and google.com and YouTube Web serv
Shaving your RTT with TCP Fast Open - Bradley Falzon
TL;DR TCP Fast Open (TFO) allows clients to send data in the initial SYN request, without waiting for a full handshake to occur. This removes an entire round trip almost transparently from the application. Cookies are included in the TCP options header. It’s available in Linux 3.7+, nginx and HAProxy has support already. Client support is lacking with only Chrome/Chromium on Linux, ChromeOS and An
Part 1: Lessons learned tuning TCP and Nginx in EC2 « Chartbeat Engineering Blog
Part 1: Lessons learned tuning TCP and Nginx in EC2 January 2nd, 2014 by Justin Our average traffic at Chartbeat has grown about 33% over the last year and depending on news events, we can see our traffic jump 33% or more in a single day. Recently we’ve begun investigating ways we can improve performance for handling this traffic through our systems. We set out and collected additional metrics f
surge.run - このウェブサイトは販売用です！ - surge リソースおよび情報
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TCP is UNreliable - Cliff Click's Blog
28 thoughts on “TCP is UNreliable” Comments are closed. 12 Month Tenancy Agreement Work For Hire Agreement Uk Which Of The Following Is An Example Of A Common Contingency Clause In A Purchase Agreement What Is The Meaning Of End User License Agreement What Is A Word For Agreement Between Nations What Happens If There Is No Double Tax Agreement We Are In Agreement In Italiano Vertical Agreements Ex
The little ssh that (sometimes) couldn't | Mina Naguib
October 22, 2012 The little ssh that (sometimes) couldn't Preface This is a technical article chronicling one of the most interesting bug hunts I’ve had the pleasure of chasing down. At AdGear Technologies Inc. where I work, ssh is king. We use it for management, monitoring, deployments, log file harvesting, even some event streaming. It’s solid, reliable, has all the predictability of a native un
Why upgrading your Linux Kernel will make your customers much happier
Sam Saffron Programming, Technology and the Art of Hacking Sometimes we hear that crazy developer talk about some magical thing you can do that will increase performance everywhere by 30% (feel free to replace that percentage with whatever sits right for you). In the past week or so I have been playing the role of “that guy”. The ranting lunatic. Some times this crazy guy throws all sorts of other
A TCP "stuck" connection mystery (evanjones.ca)
[ 2011-September-19 19:17 ] There is almost nothing as satisfying as fixing a difficult bug. I just figured out a rare hang that was plaguing a performance test for my PhD research for about the last year. The problem was that occasionally some simulated MySQL clients would get stuck waiting to connect. When I examined the server, there was no trace of the connection. The short version of the stor
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