microsoft / microsoft/ntttcp-for-linux
Monotonic clock sources should be used to calculate bandwidth
Open
Nobody has claimed this yet.
- Dominant language
- C
- Stars
- 426
- Forks
- 108
- PR merge metrics
- No merged PRs in 30d
Description
Wall-clock is used to estimate the real-time bandwidth, for instance, and in cases where there are clock drifts, the calculations will be incorrect. Changing the code to use a monotonic clock source should improve the reliability.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Locate the bandwidth estimation code that uses wall-clock time and identify the relevant timing paths. Check how timing is tested, then verify that clock drift no longer produces incorrect real-time bandwidth calculations while preserving normal benchmark behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, linux
- Domain
- networking, performance
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100