Add histograms for time to parse start for service worker controlled pages. |
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Issue descriptionAdd histograms for time to parse start for service worker controlled pages. Service worker controlled pages should drive time to parse start down to near zero. We should track this latency. Additionally, this will allow us to improve the service worker stats UMA, where we currently compute the percentage of page loads controlled by SW using UMA sourced from different parts of the code in numerator and denominator.
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Jan 25 2017
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Jan 27 2017
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Jan 27 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/b9c7574d2f2d7baaf78d42c5db8068fed0081145 commit b9c7574d2f2d7baaf78d42c5db8068fed0081145 Author: bmcquade <bmcquade@chromium.org> Date: Fri Jan 27 23:51:08 2017 Add histograms for time to parse start for service worker controlled pages. Service worker controlled pages should drive time to parse start down to near zero. This change allows us to track the actual latency. Additionally, this will allow us to improve the service worker stats UMA, where we currently compute the percentage of page loads controlled by SW using UMA sourced from different parts of the code in numerator and denominator. BUG= 684561 Review-Url: https://codereview.chromium.org/2651883006 Cr-Commit-Position: refs/heads/master@{#446838} [modify] https://crrev.com/b9c7574d2f2d7baaf78d42c5db8068fed0081145/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.cc [modify] https://crrev.com/b9c7574d2f2d7baaf78d42c5db8068fed0081145/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h [modify] https://crrev.com/b9c7574d2f2d7baaf78d42c5db8068fed0081145/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer_unittest.cc [modify] https://crrev.com/b9c7574d2f2d7baaf78d42c5db8068fed0081145/tools/metrics/histograms/histograms.xml |
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Comment 1 by kenjibaheux@chromium.org
, Jan 25 2017