Add speed operations and speed services overview docs.

docs/speed/chrome_speed_operations.md

Index: docs/speed/chrome_speed_operations.md
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+# Chrome Speed Operations
+
+Chrome Speed Operations exists to prevent Chrome from regressing on
+responsiveness, smoothness, memory, power or other key performance metrics.
+We seek to integrate a world-class benchmarking framework and performance
+monitoring tools into Chrome's release process.
+
+TL: sullivan@chromium.org<br>
+TPM: benhenry@chromium.org
+ 
+Speed Operations consists of 3 teams, working in tandem:
+
+## Benchmarks
+The benchmarks team provides:

[sullivan, 2017/06/16 21:12:37]

Ned: I added an overview doc of services, which is linked below. I leave it up
to you whether to add an overview of benchmarking (perhaps convert
go/what-benchmarking-team-is-doing to markdown?)

+  * A set of [releasing-oriented benchmarks](https://docs.google.com/document/d/1BM_6lBrPzpMNMtcyi2NFKGIzmzIQ1oH3OlNG27kDGNU/edit)
+    that measure key user-visible performance metrics in important scenarios.
+    We work closely with Chrome Speed Metrics team on the metrics and with
+    Releasing team on the scenarios.
+  * A set of [opinionated benchmarking frameworks](https://docs.google.com/document/d/1ni2MIeVnlH4bTj4yvEDMVNxgL73PqK_O9_NUm3NW3BA/edit)
+    that make it easy for Chromium developers to add lower-level benchmarks for
+    the areas of Chrome performance important to them.
+  * Automation to run these benchmarks on our continuous build on several dozen
+    real device types, on Windows, Mac, Linux, and Android, with hardware power
+    monitoring.
+
+TL: nednguyen@chromium.org<br>
+Contact: benchmarking-dev@chromium.org
+
+## Services
+The [services](chrome_speed_services.md) team provides:
+  * The [Chrome performance dashboard](https://chromeperf.appspot.com), which
+    stores performance timeseries and related debugging data. The dashboard
+    automatically detects regressions in these timeseries and has integration
+    with Chromium's bug tracker for easy tracking.
+  * Tools for [bisecting regressions](bisects.md) on our continuous build down
+    to an exact culprit CL.
+  * A [performance try job service](perf_trybots.md) which allows chromium
+    developers to run benchmarks on unsubmitted CLs using the same hardware
+    we use in the continuous build.
+
+TL: simonhatch@chromium.org<br>
+Contact: speed-services-dev@chromium.org
+
+## Releasing
+The releasing team provides:

[sullivan, 2017/06/16 21:12:37]

Ben, not sure if you want to update
https://docs.google.com/document/d/1vJl31IK7uVgLVQAWsfHyFW6axxLixusfnJGZmRQep...
and add a doc for it here?

+  * Tracking of all performance regressions seen in user-visible performance
+    both in the wild and in the lab.
+  * A per-milestone report on Chrome's performance.
+  * Recommendations about lab hardware and new test scenarios.
+  * Management of performance sheriff rotations.
+
+TPM: benhenry@chromium.org