PBProbe / Blog: Recent posts

PBProbe_3.0.1 release (2013/10/14 update)

Clean some debug code

New Feature:

1. Automatic parameter tuning to optimize the estimation process
2. Built-in convergence test to improve the estimation accuracy

Reference:

Rohit Kapoor, Ling-Jyh Chen, Li Lao, Mario Gerla, and M. Y. Sanadidi. CapProbe: A Simple and Accurate Capacity Estimation Technique. ACM SIGCOMM 2004, Portland, USA, 2004. (also in ACM Computer Communication Review, vol 34, issue 4, pp. 67-78, Oct. 2004)... read more

pbprobe_sc_beta_v0.2 solve the zombie issue on server side. :)

Client-server version is more suitable for long time experiment and it will pass the result to both client and server side.

At server side, it will log the client ip which connected to it, and store the result to a log file.

At client side, it will return the results of upload and download link between client and server.

BUT, for unknown link, user have to tune the parameter manually.

In next version, we will solve this problem and include the adaptive algorithm for unknown link.... read more

The PBProbe License

Copyright (c) 2012 Ling-Jyh Chen(陳伶志)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:... read more

CPU

Intel Pentium 4, Core 2 Duo, i5
AMD   Athlon 4200+

OS

Ubuntu
Server version: 10.04, 10.10, 11.10
Desktop version: 10.04, 10.10, 11.10, 12.04

PBProbe_2.0.1:

Update the Release License.

PBProbe_2.0:

Remove the assembly code from PBProbe and solve the program freeze problem.

<New parameters>
-s: run as sender, ex: '-s RECEIVER_IP'
-d: run as receiver, ex: '-d SENDER_IP'
-p: the size of packet (default: 1500), ex: '-p 1000' means using 1000 bytes as a packet
-c: the interval of probing traffic, ex: '-c 100' means constant interval 100 ms
-r: the rate to probe the link capacity, ex: '-r 1' means using 1 Mbps to probe 
-k: the length of bulk (default: 10), ex: '-k 100' means a bulk contains 100 packets
-u: the utilization of link capacity (default: 0.01),
     ex: '-u 0.01' means using 1% of link capacity to probe
-n: the number of probing bulks (default: 10), ex: '-n 200' means using 200 bulks to probe
-v: show verbose log
-b: show debug info... [read more](/p/pbprobe/blog/2012/10/release-note/)