Differences

This shows you the differences between two versions of the page.

--- midd:traffic_scheduling:project_log [2009/04/14 23:06]
perryk
+++ midd:traffic_scheduling:project_log [2009/04/28 22:53]
perryk
@@ Line 149: / Line 149: @@
 AB - Continued work on basic analysis. Unfortunately not yet ready to commit. Complications, bleary eyes, hazy mind, the usual suspects for excuses.
+PK - Rewrite of the client UI bringing all plugins and all adapters under a single executable. Very pleased. Captured data on 3 adapters X 5 plugins simultaneously (15 data streams).
+==== 04/14 ====
+AB - Set up Mono and MySQL access from Mono.
+==== 04/15 ====
+PK - Writing HTTP plugin. Tweaks of capture code to lock resources less often and in shorted intervals.
+AB - SQL data analysis
+==== 04/16 ====
+AB, PK - Meeting to discuss progress and issues. We are slightly behind schedule. AB's fault.
+==== 04/17 ====
+PK - HTTP plugin giving me more trouble than it's worth. Recoded to hit a single web site per major interval so as to allow finer grained capture filters.
+==== 04/19 ====
+PK - A lot of data capture tests - installed and run on laptop.
+AB - Tried to dump project DBs. Decided default number of plugin subsamples. Ping analysis.
+==== 04/20 ====
+AB, PK - Meeting. Status and issues. ICMP packet lengths confusing (not adding up).
+AB - DNS analysis.
+==== 04/21 ====
+PK - Finally have HTTP plugin where it should be. Added additional capture fields as per Aubrey.
+==== 04/22 ====
+PK - propagated code to correctly extract payloads without control characters.
+AB - Finished client download of server data.
+==== 04/23 ====
+AB, PK - Meeting.
+==== 04/24 ====
+AB, PK - Meeting with Suman, who advises altering project direction. Thereafter, meeting with ourselves to discuss and start on new project direction. We will focus exclusively on scheduling data to multiple TCP streams from now on. Discussed necessary architecture, priorities, collaboration points.
+AB - Prepare presentation for meeting with Suman.
+PK - Actually early 04/25. Started from scratch last night. Finished a new server - even added graphing GUI. Architected class hierarchy and implemented round robin scheduler (since it does not require any actual capture or analysis) as a means of exercising the class hierarchy. I like it so far. Very pleased. This screen grab shows the server receiving from a SuperTcpClient with 2 (simulated) adapters with the round robin scheduler. The graph is the last 60 seconds. The dip is the current second.
+{{:midd:traffic_scheduling:server_snap.jpg|}}
+==== 04/25 ====
+PK - Decided to take a chance to write super-TCP. Came up with plan. Spent 24 hours straight on it. Concluded it is too big for this late in the semester.
+==== 04/27 ====
+PK - AB - several hour meeting came up with concrete plan for finishing this project.
+PK - started over again.
+==== 04/28 ====
+PK - experimented with blocking and non-blocking socket member. With non-blocking I crashed my computer every time when I hammered the adapter but did not do this with blocking set. Flag must do something :). Later this day: First fully functioning version of new client / server.
+PK - AB - meet for an hour for code review, status.
+PK - a few more hours in. I added three more transmission "models" to the client: load,burst and random. I have replaced the processor based clock and am now using DateTime.Now.Ticks to make the code portable to Linux. This means same-machine/same-subnet RTTs are 0. I added the adapter cumulative loss/ooo counts. I added timestamps in acks.

WiNGS Lab @ UW

User Tools

Site Tools

Differences

Page Tools