Author: Carl Friedrich Bolz <[email protected]>
Branch: extradoc
Changeset: r4857:6e637df4d030
Date: 2012-10-16 15:48 +0200
http://bitbucket.org/pypy/extradoc/changeset/6e637df4d030/
Log: some tweaks to the text
diff --git a/talk/vmil2012/presentation/talk.tex
b/talk/vmil2012/presentation/talk.tex
--- a/talk/vmil2012/presentation/talk.tex
+++ b/talk/vmil2012/presentation/talk.tex
@@ -80,7 +80,7 @@
\titlepage
\end{frame}
-\section{Introduction}
+%\section{Introduction}
\begin{frame}
\frametitle{Tracing JITs Compile by Observing an Interpreter}
@@ -103,11 +103,13 @@
\item Operations that check whether conditions are still true
\item When a guard fails, execution of the trace stops and continues in
the interpreter
\pause
+ \item \emph{This talk:} describe technology and design decisions around
guards
+ \pause
\begin{block}{Guard Characteristics}
\begin{itemize}
\item lots of them, up to 20\% guards
\item most never fail
- \item costly to implement
+ \item need big information attached to them
\end{itemize}
\end{block}
\end{itemize}
@@ -139,7 +141,7 @@
\frametitle{Running Example}
\end{frame}
-\section{High-Level}
+%\section{High-Level}
\begin{frame}
\frametitle{Symbolic Frame Capturing}
@@ -170,8 +172,8 @@
\item Some optimizations make it necessary to store extra information in
symbolic frames
\item examples:
\begin{itemize}
+ \item allocation removal (need to allocate objects before
resuming)
\item delayed heap stores (need to do stores before resuming
interpreter)
- \item allocation removal (need to allocate objects before
resuming)
\end{itemize}
\item can be compressed using similar techniques
\end{itemize}
@@ -186,7 +188,7 @@
\end{itemize}
In case of failure
\begin{itemize}
- \item execution jumps to compensation code, decodes and stores mapping
+ \item execution jumps to shared compensation code, decodes and stores
mapping
\item returns to interpreter that rebuilds state
\end{itemize}
\end{frame}
@@ -218,7 +220,7 @@
\frametitle{Patching Guards for Bridges}
\end{frame}
-\section{Evaluation}
+%\section{Evaluation}
%as in paper
%fancy graphs
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