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authorguest <guest@cba7306a-a4a0-4afd-bcb4-bd19f8a24309>2007-11-30 13:41:25 +0000
committerguest <guest@cba7306a-a4a0-4afd-bcb4-bd19f8a24309>2007-11-30 13:41:25 +0000
commiteacbf5bb4d57af21c731f41251015d3b991ad490 (patch)
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+<!--Converted with LaTeX2HTML 2002-2-1 (1.71)
+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>
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+<TITLE>Performancebewertung</TITLE>
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+<B> Previous:</B> <A NAME="tex2html628"
+ HREF="node35.html">Ice</A>
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+
+<H1><A NAME="SECTION00060000000000000000"></A>
+<A NAME="sec:versuche"></A>
+<BR>
+Performancebewertung
+</H1>
+
+<P>
+<TABLE CELLPADDING=3 BORDER="1">
+<TR><TD ALIGN="RIGHT">One of the problems of taking things apart</TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT">and seeing how they work</TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT"><SPAN CLASS="textit">supposing you're trying to find out how a cat works</SPAN></TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT">you take that cat apart to see how it works,</TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT">what you've got in your hands is a non-working cat.</TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT">The cat wasn't a sort of clunky mechanism</TD>
+<TD ALIGN="LEFT">&nbsp;</TD>
+</TR>
+<TR><TD ALIGN="RIGHT">that was susceptible to our available tools of analysis.</TD>
+<TD ALIGN="LEFT"><SPAN CLASS="textsl">Douglas Adams,</SPAN></TD>
+</TR>
+<TR><TD ALIGN="RIGHT">&nbsp;</TD>
+<TD ALIGN="LEFT"><SPAN CLASS="textsl">Hitchhiker's Guide to the Galaxy</SPAN></TD>
+</TR>
+</TABLE>
+
+<P>
+<BR>
+<BR>
+<BR>
+
+<P>
+...will man die Performance von Real-time Applikationen messen, ohne deren Echtzeitverhalten zu beeinflussen, ist man auch auf die richtige Art der Analyse angewiesen. Eine Messung per Software w&#252;rde das Echtzeitverhalten der Applikationen beeinflussen. Deshalb entschied ich mich, die Messungen in Hardware durchzuf&#252;hren.
+
+<P>
+In diesem Kapitel werden Applikationen zur &#220;bertragung von Prozessabbildern und Logdateien vorgestellt. Der aktuelle Zustand des Speicherbereichs, welcher die digitalen Ein- und Ausg&#228;nge eines Systems abbildet, wird Prozessabbild genannt. Dabei wird die Latenz bei der &#220;bertragung des Prozessabbildes gemessen. Es wird erl&#228;utert wie die Latenz gemessen wurde. Au&#223;erdem wird auf den Aufbau des verwendeten ACE/TAO Frameworks eingegangen.
+
+<P>
+In Anhang <A HREF="#sec:systemkonfigurationen">A</A> ist die Hard- und Softwareumgebung beschrieben, in der die in diesem Kapitel beschriebenen Versuche durchgef&#252;hrt wurden.
+
+<P>
+<BR><HR>
+<!--Table of Child-Links-->
+<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
+
+<UL CLASS="ChildLinks">
+<LI><A NAME="tex2html639"
+ HREF="node37.html">Ende zu Ende Latenz messen</A>
+<LI><A NAME="tex2html640"
+ HREF="node38.html">Lastsimulationen</A>
+<LI><A NAME="tex2html641"
+ HREF="node39.html">RTCORBA Applikationen</A>
+<UL>
+<LI><A NAME="tex2html642"
+ HREF="node40.html">ACE</A>
+<LI><A NAME="tex2html643"
+ HREF="node41.html">TAO</A>
+<UL>
+<LI><A NAME="tex2html644"
+ HREF="node42.html">Scheduling</A>
+<UL>
+<LI><A NAME="tex2html645"
+ HREF="node43.html">RT_ Info</A>
+</UL>
+<LI><A NAME="tex2html646"
+ HREF="node44.html">RTPOA</A>
+</UL>
+<LI><A NAME="tex2html647"
+ HREF="node45.html">V1 Prozessabbild &#252;bertragen</A>
+<UL>
+<LI><A NAME="tex2html648"
+ HREF="node46.html">Softwaredesign</A>
+<LI><A NAME="tex2html649"
+ HREF="node47.html">Datenfluss</A>
+<LI><A NAME="tex2html650"
+ HREF="node48.html">Konfiguration</A>
+<UL>
+<LI><A NAME="tex2html651"
+ HREF="node49.html">RT_ PREEMPT Priorisierung</A>
+<LI><A NAME="tex2html652"
+ HREF="node50.html">ACE/TAO Konfiguration</A>
+</UL>
+<LI><A NAME="tex2html653"
+ HREF="node51.html">Ergebnisse</A>
+<UL>
+<LI><A NAME="tex2html654"
+ HREF="node52.html">Latenzschwankungen bei flood ping auf CPX2 (Receiver)</A>
+<LI><A NAME="tex2html655"
+ HREF="node53.html">L&#246;sungsans&#228;tze</A>
+<LI><A NAME="tex2html656"
+ HREF="node54.html">L&#246;sung</A>
+<LI><A NAME="tex2html657"
+ HREF="node55.html">Anmerkungen zu den weiteren L&#246;sungsm&#246;glichkeiten</A>
+</UL>
+</UL>
+<LI><A NAME="tex2html658"
+ HREF="node56.html">V2 Prozessabbild via RT EventService &#252;bertragen</A>
+<UL>
+<LI><A NAME="tex2html659"
+ HREF="node57.html">Softwaredesign</A>
+<LI><A NAME="tex2html660"
+ HREF="node58.html">Programmablauf</A>
+<LI><A NAME="tex2html661"
+ HREF="node59.html">Konfiguration</A>
+<LI><A NAME="tex2html662"
+ HREF="node60.html">Ergebnisse</A>
+</UL>
+<LI><A NAME="tex2html663"
+ HREF="node61.html">V3 Verhalten bei gr&#246;&#223;eren Datenmengen</A>
+<UL>
+<LI><A NAME="tex2html664"
+ HREF="node62.html">Ergebnis</A>
+</UL>
+<LI><A NAME="tex2html665"
+ HREF="node63.html">V4 Scheduling</A>
+<UL>
+<LI><A NAME="tex2html666"
+ HREF="node64.html">Konfiguration</A>
+<LI><A NAME="tex2html667"
+ HREF="node65.html">Ergebnis</A>
+</UL>
+<LI><A NAME="tex2html668"
+ HREF="node66.html">V5 mehrere Teilnehmer, Priorisierung</A>
+<UL>
+<LI><A NAME="tex2html669"
+ HREF="node67.html">Softwaredesign</A>
+<LI><A NAME="tex2html670"
+ HREF="node68.html">Konfiguration</A>
+<LI><A NAME="tex2html671"
+ HREF="node69.html">Ergebnisse</A>
+</UL>
+</UL>
+<BR>
+<LI><A NAME="tex2html672"
+ HREF="node70.html">V6 Prozessabbild &#252;bertragen mit Ice</A>
+<LI><A NAME="tex2html673"
+ HREF="node71.html">Fazit</A>
+</UL>
+<!--End of Table of Child-Links-->
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+<ADDRESS>
+Manuel Traut
+2007-02-25
+</ADDRESS>
+</BODY>
+</HTML>