v8.5.7: document CPU-aware hot region scheduling (#23140)#23209
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This pull request updates the documentation across several files (grafana-pd-dashboard.md, pd-control.md, and troubleshoot-hot-spot-issues.md) to describe the new CPU-aware hot Region scheduling feature introduced in v8.5.7 and v9.0.0. The review feedback suggests minor improvements to align with the style guide, such as capitalizing 'cpu' to 'CPU' in metric names and rewriting passive voice sentences to active voice using the second person ('you') for better clarity.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: qiancai The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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This is an automated cherry-pick of #23140
What is changed, added or deleted? (Required)
Document CPU-aware Hot Region scheduling for read hotspots introduced in v8.5.7:
flow_cpuandcpu-read-rateoutput descriptions forpd-ctl hot.min-hot-cpu-rate,cpu-rate-rank-step-ratio, and CPU-awareread-prioritiesbehavior forbalance-hot-region-scheduler.Store read cpupanel description in the PD Grafana dashboard doc.Which TiDB version(s) do your changes apply to? (Required)
Need cherry-pick to
release-8.5because the feature is requested for v8.5.7.What is the related PR or file link(s)?
Do your changes match any of the following descriptions?
Which TiDB components does this PR affect?
How do you ensure that your changes are correct? (Required)
/home/lhy1024/pdand/home/lhy1024/tikvimplementation for fields, defaults, and version fallback behavior../scripts/markdownlint pd-control.md troubleshoot-hot-spot-issues.md grafana-pd-dashboard.md.git diff --check.