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a30a696034
rocksdb/table
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Aaron Gao a30a696034 do not read next datablock if upperbound is reached 
Summary:
Now if we have iterate_upper_bound set, we continue read until get a key >= upper_bound. For a lot of cases that neighboring data blocks have a user key gap between them, our index key will be a user key in the middle to get a shorter size. For example, if we have blocks:
[a b c d][f g h]
Then the index key for the first block will be 'e'.
then if upper bound is any key between 'd' and 'e', for example, d1, d2, ..., d99999999999, we don't have to read the second block and also know that we have done our iteration by reaching the last key that smaller the upper bound already.

This diff can reduce RA in most cases.
Closes https://github.com/facebook/rocksdb/pull/2239

Differential Revision: D4990693

Pulled By: lightmark

fbshipit-source-id: ab30ea2e3c6edf3fddd5efed3c34fcf7739827ff
2017-05-05 23:20:01 -07:00
..
adaptive_table_factory.cc solve the problem of table_factory_to_write_=nullptr (#1342) 2016-09-20 10:11:51 -07:00
adaptive_table_factory.h Only cache level 0 indexes and filter when opening table reader 2016-07-20 11:23:31 -07:00
block_based_filter_block_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_filter_block.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_filter_block.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_table_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_table_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_table_factory.cc Revert "Delete filter before closing the table" 2017-05-02 13:46:39 -07:00
block_based_table_factory.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_based_table_reader.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
block_based_table_reader.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
block_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block_prefix_index.cc Fix clang analyzer errors 2016-07-08 17:50:51 -07:00
block_prefix_index.h Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
block_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
block.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
bloom_block.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
bloom_block.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cleanable_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cuckoo_table_builder_test.cc AIX and Solaris Sparc Support 2017-04-21 20:48:04 -07:00
cuckoo_table_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cuckoo_table_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cuckoo_table_factory.cc Only cache level 0 indexes and filter when opening table reader 2016-07-20 11:23:31 -07:00
cuckoo_table_factory.h Only cache level 0 indexes and filter when opening table reader 2016-07-20 11:23:31 -07:00
cuckoo_table_reader_test.cc AIX and Solaris Sparc Support 2017-04-21 20:48:04 -07:00
cuckoo_table_reader.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
cuckoo_table_reader.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
filter_block.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_block_policy.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
format.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
format.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
full_filter_block_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
full_filter_block.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
full_filter_block.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
get_context.cc Avoid pinning when row cache is accessed 2017-05-01 18:12:46 -07:00
get_context.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
index_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
index_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
internal_iterator.h fix assertion failure in Prev() 2016-10-13 17:36:48 -07:00
iter_heap.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
iterator_wrapper.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
iterator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merger_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merging_iterator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merging_iterator.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
meta_blocks.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
meta_blocks.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
mock_table.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
mock_table.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
partitioned_filter_block_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
partitioned_filter_block.cc Revert "Delete filter before closing the table" 2017-05-02 13:46:39 -07:00
partitioned_filter_block.h Revert "Delete filter before closing the table" 2017-05-02 13:46:39 -07:00
persistent_cache_helper.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
persistent_cache_helper.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
persistent_cache_options.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_factory.cc store prefix_extractor_name in table 2016-08-26 11:46:32 -07:00
plain_table_factory.h Only cache level 0 indexes and filter when opening table reader 2016-07-20 11:23:31 -07:00
plain_table_index.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_index.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_key_coding.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_key_coding.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_reader.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
plain_table_reader.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
scoped_arena_iterator.h Compaction Support for Range Deletion 2016-10-18 12:04:56 -07:00
sst_file_writer_collectors.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
sst_file_writer.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_properties_internal.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_properties.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_reader_bench.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_reader.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
table_test.cc Revert "Delete filter before closing the table" 2017-05-02 13:46:39 -07:00
two_level_iterator.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
two_level_iterator.h do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00