[telemetry] DO NOT SUBMIT: WIP: Helper modules for querying buildbot perf data.

[telemetry] DO NOT SUBMIT: WIP: Helper modules for querying buildbot perf data.

An API for querying buildbot data. It automatically and lazily downloads and caches build info and results from buildbot.

buildbot.py is the core API - with methods for accessing and caching builders, builds, and results.
query.py is an example script that fetches all the data for a particular benchmark/metric.
download.py is a continuously running script that downloads and caches build and results data.

[sullivan, 2015-03-04 16:05:18]

sullivan@chromium.org changed reviewers:
+ sullivan@chromium.org

[sullivan, 2015-03-04 16:05:18]

This is really cool!

I wonder if we should have an experimental repo somewhere?

[dtu, 2015-03-10 17:43:17]

Patchset #3 (id:40001) has been deleted

[nednguyen, 2015-04-17 18:34:27]

On 2015/03/04 16:05:18, sullivan wrote:
> This is really cool!
> 
> I wonder if we should have an experimental repo somewhere?

perf/internal?

[sullivan, 2015-04-17 19:15:04]

On 2015/04/17 18:34:27, nednguyen wrote:
> On 2015/03/04 16:05:18, sullivan wrote:
> > This is really cool!
> > 
> > I wonder if we should have an experimental repo somewhere?
> 
> perf/internal?

Oops, Ethan and Fadi already answered this question on another thread and I
forgot to update this review!

scripts/tools/perf in tools/build repo
https://codereview.chromium.org/1060663003/