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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I didn’t know about snakeviz yet, thanks for the pointer!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It seems like the alternative visualization using a sunburst takes some getting used to – but when combined with a more traditional call graph view allows to understand the profiles more fully?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> daniel.dunbar@gmail.com [mailto:daniel.dunbar@gmail.com] <b>On Behalf Of </b>Daniel Dunbar<br><b>Sent:</b> 25 June 2015 03:56<br><b>To:</b> Kristof Beyls<br><b>Cc:</b> llvm-commits; Chris Matthews; Renato Golin; Tobias Grosser<br><b>Subject:</b> Re: [PATCH][LNT] Add support for more detailed profiling to lnt.<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Nice!<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If you aren't already aware of it, SnakeViz is a really nice web UI for looking at cProfile traces:<o:p></o:p></p></div><div><p class=MsoNormal> <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__jiffyclub.github.io_snakeviz_&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=y4c8iX8TEytEFgSOgGQ9hNSDXMGlIVA6TD1U1LLa8PE&s=Ou7SOmshEtx6zHlwvryEB7U6iI1Wumhk1UPGM6xmRdg&e=">https://jiffyclub.github.io/snakeviz/</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal> - Daniel<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Jun 24, 2015 at 10:15 AM, Kristof Beyls <<a href="mailto:kristof.beyls@arm.com" target="_blank">kristof.beyls@arm.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>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 style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The pstat files can easily be converted into something graphical by a command like:<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>$ gprof2dot -f pstats profile_dir/POST.submitRun.000591ms.1435075964.prof | dot -Tsvg > submitRun.svg<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>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 style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Does the patch look OK to commit?<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#888888'>Kristof<o:p></o:p></span></p></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>