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

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Issue 2020323003: Add UMA to track time between preload discovery and first bytes of response (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Set upstream Created 4 years, 6 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 3904041399d40e12722203d4eb9d448ed37a59d2..413ac8cd3de3a4f056fd467849a3003da5f39952 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -41514,6 +41514,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
</summary>
</histogram>
+<histogram name="PreloadScanner.TTFB" units="ms">
+ <owner>csharrison@chromium.org</owner>
+ <summary>
+ The time between preload discovery and when the first bytes of the response
+ data arrive.
+ </summary>
+</histogram>
+
<histogram name="Prerender.AbandonTimeUntilUsed" units="ms">
<owner>davidben@chromium.org</owner>
<owner>pasko@chromium.org</owner>
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