I've created a card in trello to help us track this request.
https://trello.com/c/dNODZnr0/108-measuring-ulsfo-s-impact-on-site-performance


On Mon, Feb 10, 2014 at 10:02 AM, Aaron Halfaker <[email protected]>wrote:

> The schema contains "originCountry" that should enable us to filter in
> this way.
>
> I have two points:
>
> *Browser bias: *I was under the impression that Nav timing was only
> available for modern browsers, so that might affect a bit of a bias into
> the situation.
>
> *Browser cache: *Browser cache is going to reduce any gains we might see
> due to reduced latency or increased bandwidth.  It would be nice if we
> could compare the speed changes of cached/non-cached page/asset loading.  I
> don't think that the current schema will allow us to do this.   Despite
> this, we should still be able to get a good sense for how cached/non-cached
> page loads were affected in general.
>
> -Aaron
>
>
> On Mon, Feb 10, 2014 at 9:43 AM, Dan Andreescu 
> <[email protected]>wrote:
>
>>  I was wondering if you have an easy way to measure and plot the impact
>>>> in page load time, perhaps using Navigation Timing data?
>>>>
>>>
>>> +10^9. I was rather excited to see ulsfo back up and I tried to quickly
>>> figure some correlation out of https://gdash.wikimedia.org/
>>> dashboards/frontend/ , but I failed.
>>> I think what's needed here is mostly some brilliant idea on how to
>>> visualise / graph the data available there by region (and maybe also by
>>> project / kind of editor e.g. unregistered vs. registered vs. sysop)
>>> without making thousands graphs for each of the combinations. Or just one
>>> graph for the region moved to ulsfo to start with of course. :)
>>
>>
>> Does the NavigationTiming data have the hostname of the varnish that
>> served the request, and do we have data on which hostname served which
>> geographic area at a particular time?
>>
>>  If so, we can generate a before and after average performance map by
>> region served, to see if there are any differences.
>>
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>>
>>
>
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