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Issue 715777 link

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Issue metadata

Status: Fixed
Owner:
Closed: Jul 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug



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Adjust Task Latency Histograms to Microseconds

Project Member Reported by robliao@chromium.org, Apr 26 2017

Issue description

When checking the histograms, it seemed that milliseconds was too long of a time period for task latency to get any good data. 

Switching this to microseconds may reveal more interesting groupings for task latency.
 

Comment 1 by gab@chromium.org, Apr 27 2017

Description: Show this description
Project Member

Comment 2 by bugdroid1@chromium.org, Apr 28 2017

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/180f23bbfdd91ade1b232094a17e48a4e590f38d

commit 180f23bbfdd91ade1b232094a17e48a4e590f38d
Author: robliao <robliao@chromium.org>
Date: Fri Apr 28 21:34:13 2017

Record the TaskLatency Histogram in Microseconds Instead of Milliseconds

Most task latencies were between 0 and 1 ms. Recording task latencies
in microseconds will provide better data

BUG= 715777 

Review-Url: https://codereview.chromium.org/2839333002
Cr-Commit-Position: refs/heads/master@{#468135}

[modify] https://crrev.com/180f23bbfdd91ade1b232094a17e48a4e590f38d/base/task_scheduler/task_tracker.cc
[modify] https://crrev.com/180f23bbfdd91ade1b232094a17e48a4e590f38d/base/task_scheduler/task_tracker_unittest.cc
[modify] https://crrev.com/180f23bbfdd91ade1b232094a17e48a4e590f38d/tools/metrics/histograms/histograms.xml

Status: Fixed (was: Started)

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