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MCOL-4912 This patch introduces Extent Map index to improve EM scaleability

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EM scaleability project has two parts: phase1 and phase2.
        This is phase1 that brings EM index to speed up(from O(n) down
        to the speed of boost::unordered_map) EM lookups looking for
        <dbroot, oid, partition> tuple to turn it into LBID,
        e.g. most bulk insertion meta info operations.
        The basis is boost::shared_managed_object where EMIndex is
        stored. Whilst it is not debug-friendly it allows to put a
        nested structs into shmem. EMIndex has 3 tiers. Top down description:
        vector of dbroots, map of oids to partition vectors, partition
        vectors that have EM indices.
        Separate EM methods now queries index before they do EM run.
        EMIndex has a separate shmem file with the fixed id
        MCS-shm-00060001.
This commit is contained in:
Roman Nozdrin
2022-03-30 08:57:05 +00:00
committed by Leonid Fedorov
parent fb3eaabd29
commit 4c26e4f960
25 changed files with 3498 additions and 459 deletions
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5
tests/CMakeLists.txt
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@ -62,6 +62,11 @@ if (WITH_UNITTESTS)
target_link_libraries(comparators_tests ${ENGINE_LDFLAGS} ${MARIADB_CLIENT_LIBS} ${ENGINE_WRITE_LIBS} ${CPPUNIT_LIBRARIES} cppunit)
add_test(NAME columnstore:comparators_tests, COMMAND comparators_tests)
# standalone EM routines test
# add_executable(brm_em_standalone brm-em-standalone.cpp)
# target_link_libraries(brm_em_standalone ${ENGINE_LDFLAGS} ${MARIADB_CLIENT_LIBS} ${ENGINE_WRITE_LIBS} ${CPPUNIT_LIBRARIES} cppunit)
# install(TARGETS brm_em_standalone DESTINATION ${ENGINE_BINDIR} COMPONENT columnstore-engine)
endif()
# Saving this as the example of the microbench

1914
tests/brm-em-standalone.cpp Normal file
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