add support for bthread cpu usage #2852
Merged
+64
−1
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What problem does this PR solve?
Issue Number: #2833
Problem Summary:
What is changed and the side effects?
Changed:
通过添加一个新的
bthread_cpu_clock_ns函数来获取当前bthread运行的时间，这个函数受bthread_enable_cpu_clock_statflag控制，默认不开启，需要获取运行时间的时候打开这个flag，用户在自己代码里面通过调用bthread_cpu_clock_ns拿到运行时间采集到指标里面。Side effects:
Performance effects(性能影响): 打开开关后稍微影响bthrad调度的性能，一次调度增加 ~200ns的开销。
Breaking backward compatibility(向后兼容性): 无
Check List: