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sdong df9069d23f In DB::NewIterator(), try to allocate the whole iterator tree in an arena 
Summary:
In this patch, try to allocate the whole iterator tree starting from DBIter from an arena
1. ArenaWrappedDBIter is created when serves as the entry point of an iterator tree, with an arena in it.
2. Add an option to create iterator from arena for following iterators: DBIter, MergingIterator, MemtableIterator, all mem table's iterators, all table reader's iterators and two level iterator.
3. MergeIteratorBuilder is created to incrementally build the tree of internal iterators. It is passed to mem table list and version set and add iterators to it.

Limitations:
(1) Only DB::NewIterator() without tailing uses the arena. Other cases, including readonly DB and compactions are still from malloc
(2) Two level iterator itself is allocated in arena, but not iterators inside it.

Test Plan: make all check

Reviewers: ljin, haobo

Reviewed By: haobo

Subscribers: leveldb, dhruba, yhchiang, igor

Differential Revision: https://reviews.facebook.net/D18513
2014-06-02 17:44:57 -07:00
..
builder.cc Enhance partial merge to support multiple arguments 2014-03-24 17:57:13 -07:00
builder.h
c.cc Add rocksdb_open_for_read_only to C API 2014-04-27 20:57:10 +01:00
c_test.c kill ReadOptions.prefix and .prefix_seek 2014-04-25 12:21:34 -07:00
column_family.cc Flush stale column families less aggressively 2014-06-02 15:33:54 -07:00
column_family.h Flush stale column families less aggressively 2014-06-02 15:33:54 -07:00
column_family_test.cc Flush stale column families 2014-04-30 14:33:40 -04:00
compaction.cc FIFO compaction style 2014-05-21 11:43:35 -07:00
compaction.h FIFO compaction style 2014-05-21 11:43:35 -07:00
compaction_picker.cc FIFO compaction style 2014-05-21 11:43:35 -07:00
compaction_picker.h FIFO compaction style 2014-05-21 11:43:35 -07:00
corruption_test.cc Fix corruption test 2014-04-24 14:56:41 -04:00
db_bench.cc forward iterator 2014-05-30 14:31:55 -07:00
db_filesnapshot.cc Call EnableFileDeletions with false as argument 2014-05-20 14:28:51 -07:00
db_impl.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
db_impl.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
db_impl_debug.cc FIFO compaction style 2014-05-21 11:43:35 -07:00
db_impl_readonly.cc Minimize accessing multiple objects in Version::Get() 2014-04-17 14:14:00 -07:00
db_impl_readonly.h
db_iter.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
db_iter.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
db_stats_logger.cc RocksDBLite 2014-04-15 13:39:26 -07:00
db_test.cc FIFO compaction style 2014-05-21 11:43:35 -07:00
dbformat.cc macros for perf_context 2014-04-08 10:58:07 -07:00
dbformat.h forward iterator 2014-05-30 14:31:55 -07:00
dbformat_test.cc
deletefile_test.cc
file_indexer.cc hints for narrowing down FindFile range and avoiding checking unrelevant L0 files 2014-04-21 09:10:12 -07:00
file_indexer.h Remove TransactionLogIteratorRace when -DNDEBUG 2014-04-21 11:08:30 -07:00
file_indexer_test.cc Some fixes as preparation for release 2014-04-30 09:03:24 -07:00
filename.cc fsync directory after creating current file in NewDB() 2014-05-06 17:51:33 -07:00
filename.h fsync directory after creating current file in NewDB() 2014-05-06 17:51:33 -07:00
filename_test.cc
forward_iterator.cc forward iterator 2014-05-30 14:31:55 -07:00
forward_iterator.h forward iterator 2014-05-30 14:31:55 -07:00
internal_stats.cc Expose number of entries in mem tables to users 2014-04-22 22:13:21 -07:00
internal_stats.h Expose number of entries in mem tables to users 2014-04-22 22:13:21 -07:00
log_and_apply_bench.cc log_and_apply_bench on a new benchmark framework 2014-05-05 11:11:48 -07:00
log_format.h
log_reader.cc Make Log::Reader more robust 2014-02-28 13:19:47 -08:00
log_reader.h
log_test.cc Make it compile on Debian/GCC 4.7 2014-03-14 22:44:35 +00:00
log_writer.cc
log_writer.h
memtable.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
memtable.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
memtable_list.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
memtable_list.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
merge_context.h Enhance partial merge to support multiple arguments 2014-03-24 17:57:13 -07:00
merge_helper.cc Fix the bug in MergeUtil which causes mixing values of different keys. 2014-03-27 16:15:25 -07:00
merge_helper.h [rocksdb] new CompactionFilterV2 API 2014-03-24 20:47:53 -07:00
merge_operator.cc Some small cleaning up to make some compiling environment happy 2014-03-26 18:11:41 -07:00
merge_test.cc Use new DBWithTTL API in tests 2014-04-28 23:46:24 -04:00
perf_context_test.cc Missing includes 2014-03-14 13:02:20 -07:00
plain_table_db_test.cc Revert "Revert "Allow allocating dynamic bloom, plain table indexes and hash linked list from huge page TLB"" 2014-05-04 13:56:29 -07:00
prefix_test.cc Make RocksDB work with newer gflags 2014-05-08 17:25:13 -07:00
repair.cc fsync directory after creating current file in NewDB() 2014-05-06 17:51:33 -07:00
simple_table_db_test.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
skiplist.h Consolidate SliceTransform object ownership 2014-03-10 12:56:46 -07:00
skiplist_test.cc
snapshot.h
table_cache.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
table_cache.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
table_properties_collector.cc
table_properties_collector.h TablePropertiesCollectorFactory 2014-05-13 12:30:55 -07:00
table_properties_collector_test.cc TablePropertiesCollectorFactory 2014-05-13 12:30:55 -07:00
tailing_iter.cc kill ReadOptions.prefix and .prefix_seek 2014-04-25 12:21:34 -07:00
tailing_iter.h kill ReadOptions.prefix and .prefix_seek 2014-04-25 12:21:34 -07:00
transaction_log_impl.cc Fixed a file-not-found issue when a log file is moved to archive. 2014-05-12 17:50:21 -07:00
transaction_log_impl.h RocksDBLite 2014-04-15 13:39:26 -07:00
version_edit.cc [fix] SIGSEGV when VersionEdit in MANIFEST is corrupted 2014-05-07 16:52:12 -07:00
version_edit.h Minimize accessing multiple objects in Version::Get() 2014-04-17 14:14:00 -07:00
version_edit_test.cc [CF] Dont reuse dropped column family IDs 2014-03-05 12:13:44 -08:00
version_set.cc In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
version_set.h In DB::NewIterator(), try to allocate the whole iterator tree in an arena 2014-06-02 17:44:57 -07:00
version_set_test.cc
write_batch.cc Support for column families in TTL DB 2014-04-22 11:27:33 -07:00
write_batch_internal.h Support for column families in TTL DB 2014-04-22 11:27:33 -07:00
write_batch_test.cc kill ReadOptions.prefix and .prefix_seek 2014-04-25 12:21:34 -07:00