This is certainly better, great work! How can we move further? I'm amazed that it still has an average of almost 1.5s, how could we figure out what is taking so long? Is it (random example) due to the average user being on a slow mobile network with high latency? Would be interesting to investigate.

One idea from prod would be to use data uri's in css that fallback to normal urls? IIRC most browsers support data uris up to 32kB which should fit all the images we use and potentially save eighteen requests.

On Fri, Nov 13, 2015 at 9:36 AM, Julien Girault <jgirault@wikimedia.org> wrote:
Hi,

Peter did a new iteration on our speed performance dashboard. We now have a dedicated url and a simpler layout:
https://grafana.wikimedia.org/dashboard/db/webpagetest-portals

On the left, you will see the performance in production.
On the right, the performance in beta.

I want to highlight that yesterday we pushed to production the first deployment of wiki portals from gerrit (successfully), as well as the first couple improvements made to the portal page, and they are noticeable on the performance dashboard:
- inlining the CSS and JS in the html file (see "Number of requests" decreased)
- image optimization (see how "Page and Assets size" decreased)
- we can see the speed graph baseline is below than before :)

Let's keep up the good work!!

JG



On Mon, Nov 2, 2015 at 2:53 PM, Julien Girault <jgirault@wikimedia.org> wrote:
Hi,

I am excited to announce you that we now have a performance dashboard (speed) for the wikipedia.org portal page.

Thanks to Ori and Peter from the performance team to listen to us and make this dashboard happen in a few days only.

Some context:
Moiz and I had a quick discussion late last week with Ori. I wanted to meet the Performance team and see what tools they are using and if we could benefit from that to measure the performance improvements made on www.wikipedia.org portal page. It turns out they have tools, and they are excited in making them available to us!

They are heavily using http://www.webpagetest.org/ as their performance tool to test static pages. And even better, the Performance Team runs a private instance of WebPageTest at http://wpt.wmftest.org on AWS, they collect all the metrics and display them into a great dashboard.

I met Peter this morning and he showed me the dashboard and how it works. Peter was also very excited to collaborate to collect metrics for the wikipedia portal and see a desire to improve this page with performance in mind (and using their new tool for that).

As of now, the dashboard is available here:

You must select: Project -> portals to see www.wikipedia.org metrics.

Looking forward to push the first improvements!


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