Use SquashingBlockInputStream for delta stream in fast mode

[hongyunyan]

What problem does this PR solve?

Issue Number: ref #5252

Problem Summary:

What is changed and how it works?

use SquashingBlockInputStream for delta stream in fast mode.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• Lloyd-Pottiger
• flowbehappy

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[hongyunyan]

/run-build-arm64

[sre-bot]

download tiflash binary(linux arm64) at http://fileserver.pingcap.net/download/builds/pingcap/test/tiflash/master/5213b0de8405892dcf675879e53dd311fd8d0b1b/centos7/tiflash-linux-arm64.tar.gz

[flowbehappy]

We will need some benchmark results before merging it. @hongyunyan

[hongyunyan]

Yes! This PR is now for benchbot test.

[hongyunyan]

/run-build-arm64

[hongyunyan]

/run-build-arm64

[hongyunyan]

/run-build-arm64

[hongyunyan]

/merge

[ti-chi-bot]

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

/run-all-tests

You only need to trigger /merge once, and 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.

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[ti-chi-bot]

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

Commit hash: e3b26a6

[ti-chi-bot]

@hongyunyan: Your PR was out of date, I have automatically updated it for you.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

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[hongyunyan]

/hold

[ti-chi-bot]

Merge canceled because a new commit is pushed.

[hongyunyan]

/run-all-tests

[sre-bot]

Coverage for changed files

Filename                                               Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover    Branches   Missed Branches     Cover
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Segment.cpp                                                690               210    69.57%          47                 3    93.62%        1170               263    77.52%         366               192    47.54%
tests/gtest_dm_delta_merge_store_for_fast_mode.cpp        1760               361    79.49%          12                 0   100.00%        1402                 5    99.64%         802               228    71.57%
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
TOTAL                                                     2450               571    76.69%          59                 3    94.92%        2572               268    89.58%        1168               420    64.04%

Coverage summary

Functions  MissedFunctions  Executed  Lines   MissedLines  Cover
18799      9448             49.74%    214166  95358        55.47%

full coverage report (for internal network access only)

[ti-chi-bot]

@hongyunyan: PR needs rebase.

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[hongyunyan]

/close

[ti-chi-bot]

@hongyunyan: Closed this PR.

In response to this:

/close

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