Look for bias in C++ perf test

[LarryOsterman]

Pull Request Checklist

Please leverage this checklist as a reminder to address commonly occurring feedback when submitting a pull request to make sure your PR can be reviewed quickly:

See the detailed list in the contributing guide.

• C++ Guidelines
• Doxygen docs
• Unit tests
• No unwanted commits/changes
• Descriptive title/description
  • PR is single purpose
  • Related issue listed
• Comments in source
• No typos
• Update changelog
• Not work-in-progress
• External references or docs updated
• Self review of PR done
• Any breaking changes?

[github-actions]

Hi @LarryOsterman. Thank you for your interest in helping to improve the Azure SDK experience and for your contribution. We've noticed that there hasn't been recent engagement on this pull request. If this is still an active work stream, please let us know by pushing some changes or leaving a comment. Otherwise, we'll close this out in 7 days.

[github-actions]

Hi @LarryOsterman. Thank you for your contribution. Since there hasn't been recent engagement, we're going to close this out. Feel free to respond with a comment containing /reopen if you'd like to continue working on these changes. Please be sure to use the command to reopen or remove the no-recent-activity label; otherwise, this is likely to be closed again with the next cleanup pass.