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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The attached patch adds support for getting call-graph profiles from lnt runserver. It does this by adding<br>a new –profiler-dir command line option, which results in a pstat profile to be stored to a separate file<br>in that sub directory, per web request. I find the extra call graph info very<br>useful when trying to understand what the bottlenecks are in the rendering of pages by the<br>lnt webserver.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The pstat files can easily be converted into something graphical by a command like:<o:p></o:p></p><p class=MsoNormal>$ gprof2dot -f pstats profile_dir/POST.submitRun.000591ms.1435075964.prof | dot -Tsvg > submitRun.svg<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’ve attached such an svg graph for a request of the daily report page to give an idea of<br>the kind of information this more detailed profiling can give.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does the patch look OK to commit?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kristof<o:p></o:p></p></div></body></html>