*: update crossbeam-channel to avoid spin at sending side

[sticnarf]

What is changed and how it works?

Issue Number: Close #13815

What's Changed:

According to https://github.com/crossbeam-rs/crossbeam/pull/835, spinning at the
sending side is probably a bad idea because of large critical section and it's
fixed in the recent version.

This commit updates crossbeam-channel. It will reduce CPU usage a bit and
improve performance.

Spinlock vs mutex is really tricky. Generally, using a mutex is never a bad idea but sometimes spinning improves performance. But in this case, our benchbot doesn't support spinning.

I did A-B-A (where A uses latest crossbeam-channel) tests, the one with latest crossbeam-channel wins consistently.

Check List

Tests

• Manual test (add detailed scripts or steps below)

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• BusyJay
• tabokie

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[sticnarf]

/release

[sre-bot]

download tikv at http://fileserver.pingcap.net/download/builds/pingcap/tikv/pr/de1acbb3347861c937cf73e1fd9e269a8466d706/centos7/tikv-server.tar.gz

[sticnarf]

/merge

[ti-chi-bot]

@sticnarf: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: de1acbb

[ti-chi-bot]

@sticnarf: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[sticnarf]

/test

[sticnarf]

/test

[sticnarf]

/test