I see my original message was held up in moderation due to the large attachment. I've uploaded the image to File:Screenshot of viztracer output.png <https://commons.wikimedia.org/wiki/File:Screenshot_of_viztracer_output.png>
> On Jan 13, 2023, at 6:38 PM, Roy Smith <r...@panix.com> wrote: > > > I just discovered viztracer. > https://viztracer.readthedocs.io/en/stable/index.html > <https://viztracer.readthedocs.io/en/stable/index.html> > > I've been trying to figure out why my pywikibot app is so slow. It took me > about 1 minute to instrument my code (see diff), I hit my URL in a browser, > and loaded up the resulting json file into visviewer. Now I'm scrolling > around and drilling down into a total execution trace of my code, although it > really only took a moment to see that most of the time is in 11 serialized > API calls. This is easily the coolest performance analysis tool I've ever > used. > > <Screen Shot 2023-01-13 at 6.32.31 PM.png> > > diff --git a/dyk_web/core.py b/dyk_web/core.py > index 31758dc..1e58203 100644 > --- a/dyk_web/core.py > +++ b/dyk_web/core.py > @@ -28,11 +28,16 @@ def get_pending_nominations(): > return titles > > > +from viztracer import VizTracer > +from pathlib import Path > + > + > @bp.route("/display") > def display(): > """template_name query arg is the DYK nomination template, including the > Template: prefix.""" > - current_app.logger.info <http://current_app.logger.info/>("Running on > %s", os.uname().nodename) > - page = Page(g.site <http://g.site/>, request.args["template_name"]) > - nomination = Nomination(page) > - nomination_data = NominationData.from_nomination(nomination) > - return render_template("display.html", nomination=nomination_data) > + with VizTracer(output_file=str(Path.home() / "viztracer.json")): > + current_app.logger.info <http://current_app.logger.info/>("Running > on %s", os.uname().nodename) > + page = Page(g.site <http://g.site/>, request.args["template_name"]) > + nomination = Nomination(page) > + nomination_data = NominationData.from_nomination(nomination) > + return render_template("display.html", nomination=nomination_data) >
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