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Issue metadata

Status: Unconfirmed
Owner: ----
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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Tab_switching reports abnormal data on Linux with AMD graphics driver

Reported by zhenyu.s...@intel.com, Sep 27

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Steps to reproduce the problem:
Platform: 
CPU: i7 8700K
GPU: AMD Raedon RX480
GPU Driver: amdgpu-pro 18.30 downloaded from https://www2.ati.com/drivers/linux/ubuntu/18.04/amdgpu-pro-18.30-641594.tar.xz
System: Ubuntu 18.04.1 LTS
Chrome: M69 stable

Run tab_switching.typical_25 benchmark in telemetry

What is the expected behavior?
Get a result at around 50ms

What went wrong?
Result is abnormally large (> thousand seconds), trace and result attached

Did this work before? Yes Chrome M68

Chrome version: 69.0.3497.100  Channel: stable
OS Version: Ubuntu 18.04.1
Flash Version: 

This bug is found on M69 stable, not fixed until M71 dev.
M68 works correctly, M69 without installing AMD graphics driver works correctly.
 
M69.zip
1.1 MB Download
M71.zip
1.1 MB Download
Labels: Needs-Bisect Needs-Triage-M69
Components: Speed>Telemetry
Labels: -Needs-Bisect Triaged-ET TE-NeedsTriageHelp
The issue seems to be out of TE-scope as it is related to running tab_switching.typical_25 benchmark in telemetry. Hence, adding label TE-NeedsTriageHelp for further investigation from dev team. Also removing the Needs-Bisect label. Please feel free to add the same if required.

Thanks...!!

Comment 3 by benhenry@google.com, Jan 16 (6 days ago)

Components: Test>Telemetry

Comment 4 by benhenry@google.com, Jan 16 (6 days ago)

Components: -Speed>Telemetry

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