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| author | Ulf Hermann <ulf.hermann@theqtcompany.com> | 2016-03-04 16:28:15 +0100 |
|---|---|---|
| committer | Ulf Hermann <ulf.hermann@theqtcompany.com> | 2016-03-07 14:32:36 +0000 |
| commit | b4430b61e651806cb56c5ab5206042f5004e3d33 (patch) | |
| tree | 8c7bf7977e3bf4566c80b18bd005571a75625e01 | |
| parent | a8da8bc45c74117d668d44aa9cca7022a79ba988 (diff) | |
| download | qt-creator-b4430b61e651806cb56c5ab5206042f5004e3d33.tar.gz | |
Doc: Add section about perf.map files
Change-Id: I44b4cb31326e5b6d048ec5fbac55ef6208c513a9
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
| -rw-r--r-- | doc/src/analyze/cpu-usage-analyzer.qdoc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/src/analyze/cpu-usage-analyzer.qdoc b/doc/src/analyze/cpu-usage-analyzer.qdoc index 237134594e..9778195061 100644 --- a/doc/src/analyze/cpu-usage-analyzer.qdoc +++ b/doc/src/analyze/cpu-usage-analyzer.qdoc @@ -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 |