This is an automated cherry-pick of #10140

What problem does this PR solve?

Issue Number: close #10137

Problem Summary:
before

1. low token notify doesn't work becuase wait_for ignore low token signal
2. 5s for computing avg speed is too long, which may not reflect the latest ru speed.
3. acquire token from GAC every 5s

after:

1. mainLoop thread will compute ru speed every 1s
2. requestGACLoop thread is dedicated to sending gac thread
3. only acquire token from GAC when got low token signal
4. change min_wait_dura_ms from 100ms to 10ms.

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

1. create tidb cluster with 2 tiflash(16c)
2. load tpch50g workload
3. run the following scripts: https://github.com/guo-shaoge/tiflash_resource_control_test_tool, detailed test report is internal

   1. high.change.sh

      

   2. periodically.change.sh

      

   3. priority.change.sh
      

   4. burstable.change.sh
      

• No code

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

fix tiflash resource control low token signal miss