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Update manual.

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Bartosz Taudul 2019-11-03 15:46:58 +01:00
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manual/tracy.tex
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@ -288,6 +288,12 @@ mov qword ptr [rdi+28h],rax ; write buffer counter
The second code block, responsible for ending a zone, is similar, but smaller, as it can reuse some variables retrieved in the above code.
\subsubsection{Superscalar out-of-order speculative execution}
You must be aware that modern processors \emph{do not} execute machine code in a linear way, as laid out in the source code. This can lead to counterintuivive timing results reported by Tracy. Trying to get more 'reliable' readings\footnote{And by saying 'reliable' you do in reality mean: behaving in a way you expect it to.} would require a change in the behavior of the code and this is not a thing a profiler should do. Instead, Tracy shows you what the hardware is \emph{really} doing.
This is a complex subject and the details vary from one CPU to another. You can read a brief rundown of the topic at the following address: \url{https://travisdowns.github.io/blog/2019/06/11/speed-limits.html}.
\subsection{Examples}
To see how Tracy can be integrated into an application, you may look at example programs in the \texttt{examples} directory. Looking at the commit history might be the best way to do that.
@ -309,7 +315,7 @@ Tracy Profiler supports MSVC, gcc and clang. A reasonably recent version of the
\begin{itemize}
\item Windows (x86, x64)
\item Linux (x86, x64, ARM, ARM64)
\item Android (ARM, x86)
\item Android (ARM, ARM64, x86)
\item FreeBSD (x64)
\item Cygwin (x64)
\item MinGW (x64)