diff --git a/manual/tracy.tex b/manual/tracy.tex index 48631b15..fb3be486 100644 --- a/manual/tracy.tex +++ b/manual/tracy.tex @@ -484,7 +484,7 @@ While the CPU is more-or-less designed to always be able to work at the advertis \item Were you lucky in the silicon lottery? Some dies are simply better made and are able to achieve higher frequencies. \item Are you running on the best-rated core, or at the worst-rated core? Some cores may be unable to match the performance of other cores in the same processor. \item What kind of cooling solution are you using? The cheap one bundled with the CPU, or a beefy chunk of metal that has no problem with heat dissipation? -\item Do you have complete control over the power profile? Spoiler alert: no. The operating system may run anything at any time on the any of the other cores, which will impact the turbo frequency you're able to achieve. +\item Do you have complete control over the power profile? Spoiler alert: no. The operating system may run anything at any time on any of the other cores, which will impact the turbo frequency you're able to achieve. \end{itemize} As you can see, this feature basically screams 'unreliable results!' Best keep it disabled and run at the base frequency. Otherwise your timings won't make much sense. A true example: branchless compression function executing multiple times with the same input data was measured executing at \emph{four} different speeds.