grafana: use log2 for y-axis of uptime

[jackysp]

What problem does this PR solve?

Issue Number: close #53748

Problem Summary:

What changed and how does it work?

Use log2 for y-axis of uptime.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[tiprow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.5876%. Comparing base (2069651) to head (0961091).
Report is 2 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53749        +/-   ##
================================================
+ Coverage   72.5811%   74.5876%   +2.0065%     
================================================
  Files          1506       1506                
  Lines        431006     431444       +438     
================================================
+ Hits         312829     321804      +8975     
+ Misses        98882      89722      -9160     
- Partials      19295      19918       +623     

Flag	Coverage Δ
integration	49.1796% <ø> (?)
unit	71.4384% <ø> (-0.1347%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.4673% <ø> (+8.6474%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, okJiang

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• OWNERS [hawkingrei,okJiang]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-03 07:41:49.579622798 +0000 UTC m=+3280663.336758371: ☑️ agreed by hawkingrei.
• 2024-06-03 07:57:07.626121579 +0000 UTC m=+3281581.383257151: ☑️ agreed by okJiang.