The bustub2020 from yiyuan-dong

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Student @ Shanghai Jiao Tong University

⚒️ C / C++ / Python
🔭 Working on system software
🎮 Like video games

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Do you have the source code in fa2020?

as title

Lab2 has bugs.

Hi, I have done the my own lab2, and has passed all test code in gradescope.
But there is a question in my code that I can't understand, Why the time of crabing latch is larger than just use a global mutex ?

With this doubt, I test your source code.
Unfortunately, I found your code has a bug as shown in following, and also has the problem of the time of latch and mutex.

Running main() from gmock_main.cc
[==========] Running 7 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 7 tests from BPlusTreeConcurrentTest
[ RUN      ] BPlusTreeConcurrentTest.InsertTest1
[       OK ] BPlusTreeConcurrentTest.InsertTest1 (608 ms)
[ RUN      ] BPlusTreeConcurrentTest.InsertTest2
[       OK ] BPlusTreeConcurrentTest.InsertTest2 (394 ms)
[ RUN      ] BPlusTreeConcurrentTest.DeleteTest1
[       OK ] BPlusTreeConcurrentTest.DeleteTest1 (103 ms)
[ RUN      ] BPlusTreeConcurrentTest.DeleteTest2
[       OK ] BPlusTreeConcurrentTest.DeleteTest2 (106 ms)
[ RUN      ] BPlusTreeConcurrentTest.MixTest1
[       OK ] BPlusTreeConcurrentTest.MixTest1 (19748 ms)
[ RUN      ] BPlusTreeConcurrentTest.MixTest2
/home/fhkong/bustub2020-lab2/test/storage/grading_b_plus_tree_checkpoint_2_concurrent_test.cpp:446: Failure
Expected equality of these values:
  size
    Which is: 599
  perserved_keys.size()
    Which is: 600
[  FAILED  ] BPlusTreeConcurrentTest.MixTest2 (14673 ms)
[ RUN      ] BPlusTreeConcurrentTest.MixTest3
[       OK ] BPlusTreeConcurrentTest.MixTest3 (18888 ms)
[----------] 7 tests from BPlusTreeConcurrentTest (54520 ms total)

[----------] Global test environment tear-down
[==========] 7 tests from 1 test suite ran. (54520 ms total)
[  PASSED  ] 6 tests.
[  FAILED  ] 1 test, listed below:
[  FAILED  ] BPlusTreeConcurrentTest.MixTest2

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