Commit b4430b61 authored by Ulf Hermann's avatar Ulf Hermann
Browse files

Doc: Add section about perf.map files



Change-Id: I44b4cb31326e5b6d048ec5fbac55ef6208c513a9
Reviewed-by: default avatarLeena Miettinen <riitta-leena.miettinen@theqtcompany.com>
parent a8da8bc4
......@@ -167,6 +167,16 @@
depending on the exact value of the program counter when the sample was
recorded.
\section2 Resolving Names for JIT-compiled JavaScript Functions
From version 5.6.0, Qt can generate perf.map files with information about
JavaScript functions. The CPU Usage Analyzer will read them and show the
function names in the \uicontrol Timeline and \uicontrol Statistics views.
This only works if the process being profiled is running on the host
computer, not on the target device. To switch on the generation of perf.map
files, add the environment variable \c QV4_PROFILE_WRITE_PERF_MAP to the
\uicontrol {Run Environment} and set its value to \c 1.
\section1 Analyzing Collected Data
The \uicontrol Timeline view displays a graphical representation of CPU
......
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