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

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Issue 633083002: Changes PlzNavitate histograms to try and simplify their multi-modal characteristic. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Addressed CR comments Created 6 years, 2 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 adc182ab5fc438020e7300ca0c02359542a75e0a..1c9af87573cb24d9cc8a079699e3987381e70626 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -13878,7 +13878,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
<histogram name="Navigation.TimeToCommit" units="milliseconds">
<owner>carlosk@chromium.org</owner>
<summary>
- Time between the start of a navigation request in the browser and its
+ Time between the start of a browser-started navigation request in and its
commit.
</summary>
</histogram>
@@ -13886,7 +13886,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
<histogram name="Navigation.TimeToURLJobStart" units="milliseconds">
<owner>carlosk@chromium.org</owner>
<summary>
- Time between the start of a navigation request in the browser and the
+ Time between the start of a browser-started navigation request and the
reception of a corresponding ResourceRequest in the network stack.
</summary>
</histogram>
@@ -54539,6 +54539,21 @@ To add a new entry, add it with any value and run test to compute valid value.
<affected-histogram name="Media.VideoCaptureManager"/>
</histogram_suffixes>
+<histogram_suffixes name="NavigationCharacteristic">
+ <suffix name="ExistingRenderer_BeforeUnloadDiscounted"
+ label="Navigation reused an existing renderer process. Time spent in
+ beforeunload subtracted."/>
+ <suffix name="NewRenderer_BeforeUnloadDiscounted"
+ label="Navigation spawned a new renderer process. Time spent in
+ beforeunload subtracted."/>
+ <suffix name="SessionRestored"
+ label="Navigation caused by restoring a tab from a previous session
+ (whether from a crash or a continued session) either spawning or
+ reusing a renderer. Time spent in beforeunload subtracted."/>
+ <affected-histogram name="Navigation.TimeToCommit"/>
+ <affected-histogram name="Navigation.TimeToURLJobStart"/>
+</histogram_suffixes>
+
<histogram_suffixes name="Net.QuicClientHelloRejectReasons.QuicIsSecureOrNot"
separator=".">
<owner>rtenneti@chromium.org</owner>
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