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 roy@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)