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View Code? Open in Web Editor NEWA TCP performance profiling tool.
License: GNU General Public License v2.0
A TCP performance profiling tool.
License: GNU General Public License v2.0
(1) Evolution of TCP congestion control algorithm at UC Berkeley
1st generation: TCP Tahoe (1988) and TCP Reno (1990) --> Compound TCP (Windows OS)
2nd generation: TCP Friendly Rate Control (2000) --> TCP Cubic (Linux OS)
FAST TCP based on optimization theory (2006) and adaptive utility-based TCP based on control theory (2006)
3rd generation: Explicit Rate Control Protocol (2002) which needs to modify TCP header
XCP (2002), RCP (2005) and API-RCP (2007)
(2) Improve TCP performance using control theoretic approach
adaptive utility-based TCP based on control theory (2006)
[HY06] Y. Hong and O.W.W. Yang, "Self-Tuning Utility-Based Controller for End-to-End Congestion in the Internet," Proceedings of IEEE International Conference on Broadband Communications, Networks and Systems (IEEE BROADNETS), San Jose, California, U.S.A, October 2006.
Yang Hong's answer to question on control system design has been recommended by peer researchers as the most-popular answer at ResearchGate
"What are trends in control theory and its applications in physical systems (from a research point of view)?"
Yang Hong's social media popularity per article = Number of followers/Number of articles = 152/36 = 4 followers per article (similar to 4 goals per hockey game) = top 0.1% popularity for technical articles evaluated by peer researchers = the most popular Ottawa-based researcher
https://www.researchgate.net/profile/Yang_Hong4
(3) Real-world implementation and evaluation of adaptive utility-based TCP based on control theory
Source code of TCP Cubic at GitHub
https://github.com/torvalds/linux/blob/master/net/ipv4/tcp_cubic.c
Source code developed by Yang Hong for idQ library of HybridAuth (All the source codes are committed by inBay Tech's CTO)
[Provider] idQ has been merged to the stable release v2.9.0 of HybridAuth
If I develop c code for adaptive utility-based TCP based on control theory, I do NOT have resource for evaluating the performance of adaptive utility-based TCP.
If the team of TCPDive wants to improve TCP performance using control theoretic approach, we can work together to make it happen.
i installed it via rpm, but there is nothing in log expect "Probe begin..."
and i run directly, it info me "Checking "/lib/modules/2.6.32-431.17.1.el6.x86_64/build/.config" failed with error: No such file or directory"
i'm sure i installed the correct kernel. what the problem i have?
Thanks in advance.
Troy
I'm not sure what the implication is but when I run tcpdive.sh, I see the following message regarding a missing file:
$ ./tcpdive.sh -v -R -f 50.1.2.2:*-50.1.2.4:53
Checking "/lib/modules/2.6.32-431.17.1.el6.x86_64/build/.config" failed with error: No such file or directory
$
When I try to search for the file, I note 'build' is linked to a different location under which .config is located:
$ ls -l /lib/modules/2.6.32-431.17.1.el6.x86_64/build
lrwxrwxrwx. 1 root root 51 Jan 26 17:33 /lib/modules/2.6.32-431.17.1.el6.x86_64/build -> ../../../usr/src/kernels/2.6.32-431.17.1.el6.x86_64
$ ls -l /usr/src/kernels/2.6.32-573.12.1.el6.x86_64/.config
-rw-r--r--. 1 root root 107139 Dec 15 16:49 /usr/src/kernels/2.6.32-573.12.1.el6.x86_64/.config
$
So, my question is, does the above error message matter for tcpdive.sh to function? If yes, how do I fix it?
Thanks in advance,
Keshav
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