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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
..
builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
c.cc support PopSavePoint for WriteBatch 2017-05-03 10:57:45 -07:00
c_test.c support PopSavePoint for WriteBatch 2017-05-03 10:57:45 -07:00
column_family.cc Allow IntraL0 compaction in FIFO Compaction 2017-05-04 18:16:13 -07:00
column_family.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
column_family_test.cc Move some files under util/ to separate dirs 2017-04-05 19:09:16 -07:00
compact_files_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compacted_db_impl.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compacted_db_impl.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction.cc Avoid calling fallocate with UINT64_MAX 2017-05-04 17:43:22 -07:00
compaction.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_iteration_stats.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_iterator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_iterator.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_iterator_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_job.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_job.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_job_stats_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_job_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_picker.cc Allow IntraL0 compaction in FIFO Compaction 2017-05-04 18:16:13 -07:00
compaction_picker.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_picker_test.cc Set lower-bound on dynamic level sizes 2017-05-04 18:16:12 -07:00
compaction_picker_universal.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
compaction_picker_universal.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
comparator_db_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
convenience.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
corruption_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cuckoo_table_db_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_basic_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_block_cache_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_bloom_filter_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_compaction_filter_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_compaction_test.cc Roundup read bytes in ReadaheadRandomAccessFile 2017-05-05 12:14:14 -07:00
db_dynamic_level_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_filesnapshot.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_flush_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl.cc max_open_files dynamic set, follow up 2017-05-04 10:42:45 -07:00
db_impl.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_compaction_flush.cc Fix an issue of manual / auto compaction data race 2017-05-02 15:11:59 -07:00
db_impl_debug.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_experimental.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_files.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_open.cc Roundup read bytes in ReadaheadRandomAccessFile 2017-05-05 12:14:14 -07:00
db_impl_readonly.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_readonly.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_impl_write.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_info_dumper.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_info_dumper.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_inplace_update_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_io_failure_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_iter.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_iter.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_iter_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_iterator_test.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
db_log_iter_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_memtable_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_merge_operator_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_options_test.cc Max open files mutable 2017-05-03 21:13:14 -07:00
db_properties_test.cc Add DB:ResetStats() 2017-04-18 16:56:48 -07:00
db_range_del_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_sst_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_statistics_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_table_properties_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_tailing_iter_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_test.cc Allow IntraL0 compaction in FIFO Compaction 2017-05-04 18:16:13 -07:00
db_test2.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_test_util.cc Configure index partition size 2017-03-28 12:09:12 -07:00
db_test_util.h Avoid calling fallocate with UINT64_MAX 2017-05-04 17:43:22 -07:00
db_universal_compaction_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
db_wal_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
dbformat.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
dbformat.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
dbformat_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
deletefile_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
event_helpers.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
event_helpers.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
experimental.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
external_sst_file_basic_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
external_sst_file_ingestion_job.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
external_sst_file_ingestion_job.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
external_sst_file_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
fault_injection_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
file_indexer.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
file_indexer.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
file_indexer_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
filename_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_job.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_job.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_job_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_scheduler.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
flush_scheduler.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
forward_iterator.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
forward_iterator.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
forward_iterator_bench.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
internal_stats.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
internal_stats.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
job_context.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
listener_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_format.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_reader.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_reader.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_writer.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
log_writer.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
managed_iterator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
managed_iterator.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
manual_compaction_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
memtable.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
memtable.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
memtable_list.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
memtable_list.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
memtable_list_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_context.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_helper.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_helper.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_helper_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_operator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
merge_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
options_file_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
perf_context_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
pinned_iterators_manager.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
plain_table_db_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
prefix_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
range_del_aggregator.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
range_del_aggregator.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
range_del_aggregator_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
repair.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
repair_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
snapshot_impl.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
snapshot_impl.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_cache.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
table_cache.h max_open_files dynamic set, follow up 2017-05-04 10:42:45 -07:00
table_properties_collector.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_properties_collector.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
table_properties_collector_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
transaction_log_impl.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
transaction_log_impl.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_builder.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_builder.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_builder_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_edit.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_edit.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_edit_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_set.cc do not read next datablock if upperbound is reached 2017-05-05 23:20:01 -07:00
version_set.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
version_set_test.cc Set lower-bound on dynamic level sizes 2017-05-04 18:16:12 -07:00
wal_manager.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
wal_manager.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
wal_manager_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_batch.cc support PopSavePoint for WriteBatch 2017-05-03 10:57:45 -07:00
write_batch_base.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_batch_internal.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_batch_test.cc support PopSavePoint for WriteBatch 2017-05-03 10:57:45 -07:00
write_callback.h Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
write_callback_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_controller.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_controller.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_controller_test.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_thread.cc Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
write_thread.h Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00