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Siying Dong b555ed30a4 Customized BlockBasedTableIterator and LevelIterator 
Summary:
Use a customzied BlockBasedTableIterator and LevelIterator to replace current implementations leveraging two-level-iterator. Hope the customized logic will make code easier to understand. As a side effect, BlockBasedTableIterator reduces the allocation for the data block iterator object, and avoid the virtual function call to it, because we can directly reference BlockIter, a final class. Similarly, LevelIterator reduces virtual function call to the dummy iterator iterating the file metadata. It also enabled further optimization.

The upper bound check is also moved from index block to data block. This implementation fits this iterator better. After the change, forwared iterator is slightly optimized to ensure we trim those iterators.

The two-level-iterator now is only used by partitioned index, so it is simplified.
Closes https://github.com/facebook/rocksdb/pull/3406

Differential Revision: D6809041

Pulled By: siying

fbshipit-source-id: 7da3b9b1d3c8e9d9405302c15920af1fcaf50ffa
2018-02-12 17:12:25 -08:00
..
adaptive_table_factory.cc Support prefetch last 512KB with direct I/O in block based file reader 2017-08-11 12:16:45 -07:00
adaptive_table_factory.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
block_based_filter_block_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
block_based_filter_block.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
block_based_filter_block.h Change RocksDB License 2017-07-15 16:11:23 -07:00
block_based_table_builder.cc Add a BlockBasedTableOption to turn off index block compression. 2018-01-10 15:11:59 -08:00
block_based_table_builder.h TableProperty::oldest_key_time defaults to 0 2017-10-27 15:00:05 -07:00
block_based_table_factory.cc Add a BlockBasedTableOption to turn off index block compression. 2018-01-10 15:11:59 -08:00
block_based_table_factory.h Add a BlockBasedTableOption to turn off index block compression. 2018-01-10 15:11:59 -08:00
block_based_table_reader.cc Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00
block_based_table_reader.h Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00
block_builder.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
block_builder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
block_fetcher.cc Refactor ReadBlockContents() 2017-12-11 15:27:32 -08:00
block_fetcher.h Fix BlockFetcher ASAN error 2017-12-12 12:12:38 -08:00
block_prefix_index.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
block_prefix_index.h Change RocksDB License 2017-07-15 16:11:23 -07:00
block_test.cc Speed up BlockTest.BlockReadAmpBitmap 2018-01-02 10:41:28 -08:00
block.cc BlockBasedTable::NewDataBlockIterator to always return BlockIter 2018-01-25 14:57:18 -08:00
block.h BlockBasedTable::NewDataBlockIterator to always return BlockIter 2018-01-25 14:57:18 -08:00
bloom_block.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
bloom_block.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cleanable_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
cuckoo_table_builder_test.cc Suppress lint in old files 2018-01-29 12:56:42 -08:00
cuckoo_table_builder.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
cuckoo_table_builder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cuckoo_table_factory.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
cuckoo_table_factory.h Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
cuckoo_table_reader_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
cuckoo_table_reader.cc table: Fix coverity issues 2017-12-07 11:57:36 -08:00
cuckoo_table_reader.h remove unnecessary internal_comparator param in newIterator 2017-07-27 14:30:42 -07:00
filter_block.h Extend pin_l0 to filter partitions 2017-08-23 07:56:08 -07:00
flush_block_policy.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
format.cc NUMBER_BLOCK_COMPRESSED, etc, shouldn't be treated as timer counter 2017-12-14 10:27:43 -08:00
format.h Refactor ReadBlockContents() 2017-12-11 15:27:32 -08:00
full_filter_bits_builder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
full_filter_block_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
full_filter_block.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
full_filter_block.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
get_context.cc Reduce heavy hitter for Get operation 2017-12-12 21:11:33 -08:00
get_context.h Reduce heavy hitter for Get operation 2017-12-12 21:11:33 -08:00
index_builder.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
index_builder.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
internal_iterator.h Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00
iter_heap.h Make InternalKeyComparator final and directly use it in merging iterator 2017-09-11 12:04:21 -07:00
iterator_wrapper.h Change RocksDB License 2017-07-15 16:11:23 -07:00
iterator.cc PinnableSlice move assignment 2017-10-12 18:28:24 -07:00
merger_test.cc Make InternalKeyComparator final and directly use it in merging iterator 2017-09-11 12:04:21 -07:00
merging_iterator.cc fix DBImpl::NewInternalIterator super-version leak on failure 2017-10-11 14:57:43 -07:00
merging_iterator.h fix DBImpl::NewInternalIterator super-version leak on failure 2017-10-11 14:57:43 -07:00
meta_blocks.cc Refactor ReadBlockContents() 2017-12-11 15:27:32 -08:00
meta_blocks.h Support prefetch last 512KB with direct I/O in block based file reader 2017-08-11 12:16:45 -07:00
mock_table.cc remove unnecessary internal_comparator param in newIterator 2017-07-27 14:30:42 -07:00
mock_table.h remove unnecessary internal_comparator param in newIterator 2017-07-27 14:30:42 -07:00
partitioned_filter_block_test.cc Reduce heavy hitter for Get operation 2017-12-12 21:11:33 -08:00
partitioned_filter_block.cc Reduce heavy hitter for Get operation 2017-12-12 21:11:33 -08:00
partitioned_filter_block.h Extend pin_l0 to filter partitions 2017-08-23 07:56:08 -07:00
persistent_cache_helper.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
persistent_cache_helper.h Change RocksDB License 2017-07-15 16:11:23 -07:00
persistent_cache_options.h Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_builder.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_builder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_factory.cc Allow upgrades from nullptr to some merge operator 2017-10-04 09:57:23 -07:00
plain_table_factory.h Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
plain_table_index.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_index.h table: Fix coverity issues 2017-12-07 11:57:36 -08:00
plain_table_key_coding.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
plain_table_key_coding.h Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_reader.cc Support prefetch last 512KB with direct I/O in block based file reader 2017-08-11 12:16:45 -07:00
plain_table_reader.h remove unnecessary internal_comparator param in newIterator 2017-07-27 14:30:42 -07:00
scoped_arena_iterator.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_writer_collectors.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
sst_file_writer.cc Support skipping bloom filters for SstFileWriter 2018-01-22 14:42:18 -08:00
table_builder.h TableProperty::oldest_key_time defaults to 0 2017-10-27 15:00:05 -07:00
table_properties_internal.h Eliminate some redundant block reads. 2018-01-10 17:11:58 -08:00
table_properties.cc Eliminate some redundant block reads. 2018-01-10 17:11:58 -08:00
table_reader_bench.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
table_reader.h add VerifyChecksum() to db.h 2017-08-09 15:58:13 -07:00
table_test.cc split RandomizedHarnessTest more ways 2018-02-06 13:58:18 -08:00
two_level_iterator.cc Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00
two_level_iterator.h Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00