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anand1976 d394a6bb48 Add a ticker stat for number of keys skipped during iteration 
Summary:
This diff adds a new ticker stat, NUMBER_ITER_SKIP, to count the
number of internal keys skipped during iteration. Keys can be skipped
due to deletes, or lower sequence number, or higher sequence number
than the one requested.

Also, fix the issue when StatisticsData is naturally aligned on cacheline boundary,
padding becomes a zero size array, which the Windows compiler doesn't
like. So add a cacheline worth of padding in that case to keep it happy.
We cannot conditionally add padding as gcc doesn't allow using sizeof
in preprocessor directives.
Closes https://github.com/facebook/rocksdb/pull/3177

Differential Revision: D6353897

Pulled By: anand1976

fbshipit-source-id: 441d5a09af9c4e22e7355242dfc0c7b27aa0a6c2
2017-11-20 21:26:37 -08:00
..
builder.cc Stream 2017-11-10 09:26:24 -08:00
builder.h Stream 2017-11-10 09:26:24 -08:00
c_test.c Added save points for transactions C API 2017-09-14 14:18:59 -07:00
c.cc updated c ingestexternalfileoptions for ingest behind 2017-11-09 18:15:09 -08:00
column_family_test.cc arena: derive alignment unit from std::max_align_t 2017-10-17 11:13:19 -07:00
column_family.cc Stream 2017-11-10 09:26:24 -08:00
column_family.h Stream 2017-11-10 09:26:24 -08:00
compact_files_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
compacted_db_impl.cc Fix coverity issues column_family, compaction_db/iterator 2017-10-27 11:26:42 -07:00
compacted_db_impl.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
compaction_iteration_stats.h add counter for deletion dropping optimization 2017-08-19 14:10:08 -07:00
compaction_iterator_test.cc Added support for differential snapshots 2017-11-01 18:56:43 -07:00
compaction_iterator.cc Blob DB: Add compaction filter to remove expired blob index entries 2017-11-02 17:27:38 -07:00
compaction_iterator.h Added support for differential snapshots 2017-11-01 18:56:43 -07:00
compaction_job_stats_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
compaction_job_test.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
compaction_job.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
compaction_job.h Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
compaction_picker_test.cc Make FIFO compaction options dynamically configurable 2017-10-19 15:26:36 -07:00
compaction_picker_universal.cc update scores after picking universal compaction 2017-08-16 18:42:33 -07:00
compaction_picker_universal.h Change RocksDB License 2017-07-15 16:11:23 -07:00
compaction_picker.cc use bottommost compression when base level is bottommost 2017-11-09 17:42:00 -08:00
compaction_picker.h fix hanging after CompactFiles with L0 overlap 2017-09-13 15:41:38 -07:00
compaction.cc always drop tombstones compacted to bottommost level 2017-10-27 15:56:35 -07:00
compaction.h Change RocksDB License 2017-07-15 16:11:23 -07:00
comparator_db_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
convenience.cc add VerifyChecksum() to db.h 2017-08-09 15:58:13 -07:00
corruption_test.cc fix corruption_test valgrind 2017-08-11 12:29:14 -07:00
cuckoo_table_db_test.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
db_basic_test.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
db_blob_index_test.cc fix lite build 2017-10-17 08:57:09 -07:00
db_block_cache_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_bloom_filter_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_compaction_filter_test.cc Split CompactionFilterWithValueChange 2017-10-20 15:42:07 -07:00
db_compaction_test.cc Added support for differential snapshots 2017-11-01 18:56:43 -07:00
db_dynamic_level_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_encryption_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
db_filesnapshot.cc Remove some left-over BSD headers 2017-07-18 11:56:57 -07:00
db_flush_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_impl_compaction_flush.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
db_impl_debug.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
db_impl_experimental.cc Inform caller when rocksdb is stalling writes 2017-10-05 18:11:43 -07:00
db_impl_files.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
db_impl_open.cc WritePrepared Txn: cross-compatibility test 2017-11-11 11:28:37 -08:00
db_impl_readonly.cc WritePrepared Txn: Iterator 2017-10-09 17:15:28 -07:00
db_impl_readonly.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_impl_write.cc WritePrepared Txn: Refactoring WriteCallback 2017-11-15 08:27:06 -08:00
db_impl.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
db_impl.h WritePrepared Txn: Refactoring WriteCallback 2017-11-15 08:27:06 -08:00
db_info_dumper.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
db_info_dumper.h Change RocksDB License 2017-07-15 16:11:23 -07:00
db_inplace_update_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
db_io_failure_test.cc Fix LITE unit tests 2017-07-26 21:11:47 -07:00
db_iter_test.cc Added support for differential snapshots 2017-11-01 18:56:43 -07:00
db_iter.cc Add a ticker stat for number of keys skipped during iteration 2017-11-20 21:26:37 -08:00
db_iter.h WritePrepared Txn: Iterator 2017-10-09 17:15:28 -07:00
db_iterator_test.cc Add a ticker stat for number of keys skipped during iteration 2017-11-20 21:26:37 -08:00
db_log_iter_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
db_memtable_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_merge_operator_test.cc Introduce conditional merge-operator invocation in point lookups 2017-09-28 15:58:49 -07:00
db_options_test.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
db_properties_test.cc Add DB::Properties::kEstimateOldestKeyTime 2017-10-23 15:27:27 -07:00
db_range_del_test.cc Fix wrong smallest key of delete range tombstones 2017-08-29 18:41:35 -07:00
db_sst_test.cc Make trash-to-DB size ratio limit configurable 2017-11-17 11:58:17 -08:00
db_statistics_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
db_table_properties_test.cc fix deletion-triggered compaction in table builder 2017-09-28 18:17:30 -07:00
db_tailing_iter_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
db_test2.cc use bottommost compression when base level is bottommost 2017-11-09 17:42:00 -08:00
db_test_util.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
db_test_util.h Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
db_test.cc dynamically change current memtable size 2017-11-02 22:28:10 -07:00
db_universal_compaction_test.cc update scores after picking universal compaction 2017-08-16 18:42:33 -07:00
db_wal_test.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
db_write_test.cc Return Status::InvalidArgument if user request sync write while disabling WAL 2017-10-28 22:11:18 -07:00
dbformat_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
dbformat.cc Added support for differential snapshots 2017-11-01 18:56:43 -07:00
dbformat.h WritePrepared Txn: cross-compatibility test 2017-11-11 11:28:37 -08:00
deletefile_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
event_helpers.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
event_helpers.h Change RocksDB License 2017-07-15 16:11:23 -07:00
experimental.cc Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
external_sst_file_basic_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
external_sst_file_ingestion_job.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
external_sst_file_ingestion_job.h Change RocksDB License 2017-07-15 16:11:23 -07:00
external_sst_file_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
fault_injection_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
file_indexer_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
file_indexer.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
file_indexer.h Change RocksDB License 2017-07-15 16:11:23 -07:00
filename_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
flush_job_test.cc WritePrepared Txn: Compaction/Flush 2017-10-06 10:41:53 -07:00
flush_job.cc Stream 2017-11-10 09:26:24 -08:00
flush_job.h WritePrepared Txn: Compaction/Flush 2017-10-06 10:41:53 -07:00
flush_scheduler.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
flush_scheduler.h Change RocksDB License 2017-07-15 16:11:23 -07:00
forward_iterator_bench.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
forward_iterator.cc fix populating range deletions in forward iterator 2017-09-21 17:56:38 -07:00
forward_iterator.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
internal_stats.cc TableProperty::oldest_key_time defaults to 0 2017-10-27 15:00:05 -07:00
internal_stats.h Add DB::Properties::kEstimateOldestKeyTime 2017-10-23 15:27:27 -07:00
job_context.h Inform caller when rocksdb is stalling writes 2017-10-05 18:11:43 -07:00
listener_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
log_format.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_reader.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
log_reader.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_test.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
log_writer.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
log_writer.h Change RocksDB License 2017-07-15 16:11:23 -07:00
malloc_stats.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
malloc_stats.h Change RocksDB License 2017-07-15 16:11:23 -07:00
managed_iterator.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
managed_iterator.h Change RocksDB License 2017-07-15 16:11:23 -07:00
manual_compaction_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
memtable_list_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
memtable_list.cc Add DB::Properties::kEstimateOldestKeyTime 2017-10-23 15:27:27 -07:00
memtable_list.h Add DB::Properties::kEstimateOldestKeyTime 2017-10-23 15:27:27 -07:00
memtable.cc dynamically change current memtable size 2017-11-02 22:28:10 -07:00
memtable.h dynamically change current memtable size 2017-11-02 22:28:10 -07:00
merge_context.h Change RocksDB License 2017-07-15 16:11:23 -07:00
merge_helper_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
merge_helper.cc Allow merge operator to be called even with a single operand 2017-08-16 23:42:00 -07:00
merge_helper.h Allow merge operator to be called even with a single operand 2017-08-16 23:42:00 -07:00
merge_operator.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
merge_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
options_file_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
perf_context_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
pinned_iterators_manager.h Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_db_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
prefix_test.cc Fix crashes, address test issues and adjust windows test script 2017-11-10 10:41:57 -08:00
range_del_aggregator_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
range_del_aggregator.cc Two small refactoring for better inlining 2017-09-14 15:41:49 -07:00
range_del_aggregator.h Two small refactoring for better inlining 2017-09-14 15:41:49 -07:00
read_callback.h write-prepared txn: call IsInSnapshot 2017-09-11 09:14:48 -07:00
repair_test.cc fix file numbers after repair 2017-10-10 13:12:37 -07:00
repair.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
snapshot_checker.h WritePrepared Txn: Disable GC during recovery 2017-10-18 09:11:50 -07:00
snapshot_impl.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
snapshot_impl.h Blob DB: fix snapshot handling 2017-11-02 15:58:27 -07:00
table_cache.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
table_cache.h Change RocksDB License 2017-07-15 16:11:23 -07:00
table_properties_collector_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
table_properties_collector.cc fix duplicate definition of GetEntryType() 2017-11-01 22:56:17 -07:00
table_properties_collector.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
transaction_log_impl.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
transaction_log_impl.h WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
version_builder_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
version_builder.cc VersionBuilder: Erase with iterators for better performance 2017-10-17 10:12:37 -07:00
version_builder.h Allow DB reopen with reduced options.num_levels 2017-08-24 16:10:54 -07:00
version_edit_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
version_edit.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
version_edit.h Change RocksDB License 2017-07-15 16:11:23 -07:00
version_set_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
version_set.cc Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
version_set.h Make DBOption compaction_readahead_size dynamic 2017-11-16 17:57:25 -08:00
wal_manager_test.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
wal_manager.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
wal_manager.h WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
write_batch_base.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
write_batch_internal.h WritePrepared Txn: cross-compatibility test 2017-11-11 11:28:37 -08:00
write_batch_test.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
write_batch.cc WritePrepared Txn: Refactoring WriteCallback 2017-11-15 08:27:06 -08:00
write_callback_test.cc WritePrepared Txn: Refactor conf params 2017-11-10 17:28:12 -08:00
write_callback.h Change RocksDB License 2017-07-15 16:11:23 -07:00
write_controller_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
write_controller.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
write_controller.h Change RocksDB License 2017-07-15 16:11:23 -07:00
write_thread.cc WritePrepared Txn: Recovery 2017-09-28 16:56:45 -07:00
write_thread.h WritePrepared Txn: Recovery 2017-09-28 16:56:45 -07:00