fix(testground): fix send_batch_size&send_interval setup failed in testground

[JayT106]

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Summary by CodeRabbit

• Bug Fixes

  • Fixed testground setup failures related to batch size and interval configuration.

• New Features

  • Added configurable benchmark parameters for send_batch_size and send_interval (defaults: 2000 and 0.2s).

• Documentation

  • Updated changelog with an unreleased Bug fixes entry reflecting the setup fix.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between ce8bdef and b396765.

📒 Files selected for processing (1)

• CHANGELOG.md

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📝 Walkthrough

Walkthrough

Adds two configurable parameters, send_batch_size and send_interval, to the stateless testground benchmark generator and propagates them into the generated config; also adds a bug-fix entry to CHANGELOG.md documenting the fix.

Changes

Cohort / File(s)	Summary
Testground generator testground/benchmark/benchmark/stateless.py	Added send_batch_size: int = 2000 and send_interval: float = 0.2 to the _gen function signature and included both keys in the generated cfg dictionary.
Changelog CHANGELOG.md	Added an UNRELEASED bug fixes entry noting the fix for send_batch_size & send_interval setup failures in testground.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• Problem: testground infra is not easy to setup #1504 — Modifies testground/benchmark/benchmark/stateless.py with related changes to parameter handling in the stateless testground generator.

Suggested reviewers

• calvinaco

Poem

🐰 I hopped through configs bright and spry,
Two knobs I found for send and try.
Batch size set, intervals aligned,
Benchmarks hum with rhythm refined.
Hooray — the tests now pass on time!

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and specifically describes the main change: fixing send_batch_size and send_interval setup in testground, which directly corresponds to the actual code changes in the PR.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 18.61%. Comparing base (a3c2f70) to head (b396765).
⚠️ Report is 144 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1979      +/-   ##
==========================================
+ Coverage   16.87%   18.61%   +1.74%     
==========================================
  Files          72       75       +3     
  Lines        6163     5081    -1082     
==========================================
- Hits         1040      946      -94     
+ Misses       5000     4014     -986     
+ Partials      123      121       -2     

see 69 files with indirect coverage changes

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