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<html><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><!--Converted with jLaTeX2HTML 2002 (1.62) JA patch-1.4patched version by: Kenshi Muto, Debian Project.LaTeX2HTML 2002 (1.62),original version by: Nikos Drakos, CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>7.5.3 Tracing</TITLE><META NAME="description" CONTENT="7.5.3 Tracing"><META NAME="keywords" CONTENT="everything"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META NAME="Generator" CONTENT="jLaTeX2HTML v2002 JA patch-1.4"><META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"><LINK REL="STYLESHEET" HREF="everything.css" tppabs="http://www.isi.edu/nsnam/ns/doc/everything.css"><LINK REL="next" HREF="node80.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node80.html"><LINK REL="previous" HREF="node75.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node75.html"><LINK REL="up" HREF="node71.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node71.html"><LINK REL="next" HREF="node80.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node80.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html2531" HREF="node80.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node80.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html2525" HREF="node71.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node71.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html2519" HREF="node78.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node78.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html2527" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="file:/usr/share/latex2html/icons/contents.png"></A> <A NAME="tex2html2529" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html"><IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="file:/usr/share/latex2html/icons/index.png"></A> <BR><B> Next:</B> <A NAME="tex2html2532" HREF="node80.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node80.html">7.5.4 Variables</A><B> Up:</B> <A NAME="tex2html2526" HREF="node71.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node71.html">7.5 Queue/JoBS</A><B> Previous:</B> <A NAME="tex2html2520" HREF="node78.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node78.html">7.5.2.3 Marking the traffic</A>   <B> <A NAME="tex2html2528" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html2530" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <BR><BR><!--End of Navigation Panel--><H2><A NAME="SECTION03453000000000000000">7.5.3 Tracing</A></H2>Tracing in JoBS is handled internally, by the scheduler. Each JoBS queue can generate a trace file containing the following information. Each line of the tracefile consists of 17 columns. The first column is the simulation time, columns 2 to 5 represent the loss rates over the current busy period for classes 1 to 4, columns 6 to 9 represent the delays for each class (average over a 0.5 seconds sliding window), columns 10 to 13 represent the average service rates allocated to each class over the last 0.5 seconds, and columns 14 to 17 represent the instantaneous queue length in packets. Additionally, Demarkers can be used to trace end-to-end delays.<P><BR><HR><ADDRESS>2003-09-23</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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