PLACES_AUTOCOMPLETE_1ST_RESULT_TIME_MS changes on Nightly since 07/25

Girish Sharma scrapmachines at gmail.com
Thu Aug 7 21:51:07 UTC 2014


One thing to note is that although the telemetry graph shows that the total
number of users with > 50ms for that query reduced a lot, I on the other
hand is actually observing a totally opposite behavior.

I filed https://bugzilla.mozilla.org/show_bug.cgi?id=1049506 but in a
nutshell, when i turn on unified complete, the first query (along with auto
filling) has a really noticeable delay as compared to when unified complete
is off.

Just putting it out here as I wonder if other users are also observing such
behavior, why did the graph shows a huge improvement.



On Fri, Aug 8, 2014 at 3:15 AM, Gavin Sharp <gavin at gavinsharp.com> wrote:

> Interesting - so perhaps not as much of a win as I had thought. It
> sounds to me like we might want telemetry on the overall time to
> display "all results" (or all "initially visible" results) to get a
> better picture of the overall effect of autocomplete changes. I could
> see making the first result appear quickly but subsequent results
> appear more slowly being a net negative in terms of user perception,
> for example.
>
> Gavin
>
> On Wed, Aug 6, 2014 at 1:02 AM, Marco Bonardo <mbonardo at mozilla.com>
> wrote:
> > On 05/08/2014 21:44, Gavin Sharp wrote:
> >>
> >>
> >>
> http://telemetry.mozilla.org/#filter=nightly%2F34%2FPLACES_AUTOCOMPLETE_1ST_RESULT_TIME_MS
> >> is interesting (discovered via
> >> http://vitillo.github.io/cerberus/dashboard/).
> >>
> >> That measure has decreased noticeably across the board. Do we know why?
> >
> >
> > The first result now is often the autoFilled result, any other result
> > happens after a timer (to avoid querying too often while the user types)
> > while autoFill query runs immediately. So now this is basically measuring
> > time taken by the autoFill query to fill up the first popup result, while
> > previously it was measuring time taken by the first autocomplete query
> to do
> > the same. The good thing is that this way it looks like we are returning
> > results faster, so autocomplete will indeed "look" snappier to the user.
> >
> > -m
> >
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-- 
Girish Sharma
B.Tech(H), Civil Engineering,
Indian Institute of Technology, Kharagpur
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