Added `recording and stopping traces' and cleaned the document.

portfolio/tracing/presentation.tex

-\documentclass{beamer} % {{{
+\documentclass{beamer}
 \usepackage[dutch]{babel}
 \usepackage[utf8]{inputenc}
 \usepackage{beamerthemesplit}
@@ -8,8 +8,7 @@
 \setbeamercovered{transparent}
 
 % Custom footer columns widths (modified "infolines" template)
-\defbeamertemplate*{footline}{compactlines theme}
-{
+\defbeamertemplate*{footline}{compactlines theme} {
   \leavevmode%
   \hbox{%
     \begin{beamercolorbox}[wd=.400000\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
@@ -27,7 +26,7 @@
 
 \mode<presentation> {
   \usetheme{Boadilla}
-	%\usetheme{Copenhagen}
+  % \usetheme{Copenhagen}
   \usecolortheme[named=kugreen]{structure}
   \useinnertheme{circles}
   \usefonttheme[onlymath]{serif}
@@ -48,8 +47,6 @@
 \newfloat{program}{thp}{lop}
 \floatname{program}{Program}
 
-% }}}
-
 \title{Incremental trace trees and JavaScript}
 \subtitle{Executing typeless, dynamic languages faster}
 \author{Sander van Veen}
@@ -58,18 +55,19 @@
 
 \begin{document}
 
-\frame { \titlepage% {{{
-} % }}}
+\frame {
+  \titlepage
+}
 
-\frame { \frametitle{Overzicht} % {{{
+\frame { \frametitle{Overzicht}
   \tableofcontents[pausesection]
-} % }}}
+}
 
 \section{Introductie tot JavaScript}
 
 \subsection{Wat is JavaScript?}
 
-\frame { \frametitle{JavaScript overzicht} % {{{
+\frame { \frametitle{JavaScript overzicht}
 
   De taal JavaScript is:
 
@@ -82,9 +80,9 @@
 
   \input{basic-example}
 
-} % }}}
+}
 
-\frame { \frametitle{JavaScript variabel representatie} % {{{
+\frame { \frametitle{JavaScript variabel representatie}
 
   Firefox gebruikt 64 bits voor alle types:
 
@@ -107,11 +105,11 @@
   \item Dus: bij \texttt{NaN} bepalen de 14 bits na de exponent de TAG.
   \end{itemize}
 
-} % }}}
+}
 
 \subsection{Browser onderdelen}
 
-\frame { \frametitle{Wat doet elk onderdeel?} % {{{
+\frame { \frametitle{Wat doet elk onderdeel?}
 
   In de Mozilla Firefox browser:
 
@@ -127,10 +125,13 @@
     \end{itemize}
   \end{itemize}
 
-} % }}}
+}
+
+\section{Compiler basics}
 
+\subsection{Control flow graph}
 
-\frame { \frametitle{Control flow graph} % {{{
+\frame { \frametitle{Control flow graph}
 
   \begin{columns}[t]
 
@@ -145,32 +146,56 @@
 
   \end{columns}
 
-} % }}}
+}
+
+\subsection{Trace vs Just-In-Time compiler}
 
-\frame { \frametitle{Trace vs Just-In-Time compiler} % {{{
+\frame { \frametitle{Trace vs Just-In-Time compiler}
 
-\begin{columns}[t]
-\column{.5\textwidth}
-\textbf{Trace compiler}
+  \begin{columns}[t]
+    \column{.5\textwidth}
+    \textbf{Trace compiler}
+
+    \begin{itemize}
 
-\begin{itemize}
     \item Eenheid is een ``loop''.
-    \item Benodigd: Traces opnemen.
+    \item \emph{Lazy compilation}; niet 3 en 7.
       \includegraphics[width=6cm]{images/trace-tree.pdf}
-\end{itemize}
+    \end{itemize}
 
-\column{.5\textwidth}
-\textbf{Just-In-Time compiler}
+    \column{.5\textwidth}
+    \textbf{Just-In-Time compiler}
 
-\begin{itemize}
+    \begin{itemize}
     \item Eenheid is een ``method''.
     \item Benodigd: Control flow graph.
       \includegraphics[width=6cm]{images/control-flow-graph.pdf}
-\end{itemize}
+    \end{itemize}
+
+  \end{columns}
+
+}
+
+\subsection{Trace trees}
+
+\frame { \frametitle{Hoe worden traces opgenomen?}
 
-\end{columns}
+  \begin{enumerate}
+  \item Detecteer start van een loop.
+  \item Houd \emph{loop count} bij.
+  \item Loop count $>$ \emph{threshold}: record trace!
+  \item Stop de trace na een cycle.
+  \end{enumerate}
 
-} % }}}
+  \pause \textbf{Of een trace faalt}
+
+  \begin{enumerate}
+  \item Er treedt een \emph{exception} op.
+  % \item \emph{Memory allocation} instructies.
+  \item Een trace wordt te lang (voor geheugen).
+  \end{enumerate}
+
+}
 
 \end{document}
 % vim: foldmethod=marker
\ No newline at end of file