tools/metrics/histograms/histograms.xml - Issue 495953003: Add a PLT histogram for prerender local predictor prefetches.

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Unified Diff: tools/metrics/histograms/histograms.xml

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Issue 495953003: Add a PLT histogram for prerender local predictor prefetches. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: incorporate jkarlin's comments Created 6 years, 4 months ago

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Index: tools/metrics/histograms/histograms.xml

diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml

index 48805f790f52eecd3b9d68a541348f24dd84d72e..4424d6e0c3d4ca240df9c841544247ada7c6abb4 100644

--- a/tools/metrics/histograms/histograms.xml

+++ b/tools/metrics/histograms/histograms.xml

@@ -23956,6 +23956,18 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</summary>

</histogram>

+<histogram name="Prerender.LocalPredictorPrefetchMatchPLT" units="milliseconds">

+ <owner>tburkard@chromium.org</owner>

+ <summary>

+ The PrerenderLocalPredictor uses local browsing history and the prerender

+ service to predict pages likely visited soon. Some of these URLs are

+ prefetched. When such prefetched likely next pages are visited, this

+ histogram records the PLT for such pages. In particular, this also happens

+ if prefetch is actually disabled, allowing (by pivoting on whether or not

+ prefetch is enabled) to compare the effect of prefetch on PLT.

+ </summary>

+</histogram>

<histogram name="Prerender.LocalPredictorServiceLookupTime"

units="milliseconds">

<owner>tburkard@chromium.org</owner>

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