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Bartosz Taudul 2021-11-27 15:46:24 +01:00
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manual/tracy.tex
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@ -3466,7 +3466,7 @@ In this mode both the source and assembly panes will be displayed together, prov
If automated call stack sampling (see chapter~\ref{sampling}) was performed, additional profiling information will be available. The first column of source and assembly views will contain percentage counts of collected instruction pointer samples for each displayed line, both in numerical and graphical bar form. This information can be used to determine which line of the function takes the most time. The displayed percentage values are heat map color coded, with the lowest values mapped to dark red, and the highest values mapped to bright yellow. The color code will appear next to the percentage value, and on the scroll bar, so that 'hot' places in code can be identified at a glance.
By default samples are displayed only from within the selected symbol, in isolation. In some cases you may however want to include samples from functions that were called. To do so, enable the \emph{\faSignOut*{}~Child calls} option, which may also be temporarily toggled by holding the \keys{Z} key. Make sure to familiarize yourself with section~\ref{readingcallstacks} to be able to properly read the results.
By default samples are displayed only from within the selected symbol, in isolation. In some cases you may however want to include samples from functions that were called. To do so, enable the \emph{\faSignOut*{}~Child calls} option, which may also be temporarily toggled by holding the \keys{Z} key. You can also click the~\faCaretDown{}~drop down control to display a child call distribution list, which shows each known function\footnote{You should remember that these are results of random sampling. Some function calls may be missing here.} that the symbol called. Make sure to familiarize yourself with section~\ref{readingcallstacks} to be able to properly read the results.
Instruction timings can be viewed as a group. To begin constructing such group, click the \LMB{}~left mouse button on the percentage value. Additional instructions can be added using the \keys{\ctrl}~key, while holding the \keys{\shift}~key will allow selection of a range. To cancel the selection, click the \RMB{}~right mouse button on a percentage value. Group statistics can be seen at the bottom of the pane.