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rocksdb/db
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Feng Zhu da9274574f Use IterKey instead of string in Block::Iter to reduce malloc 
Summary:
  Modify a functioin TrimAppend in dbformat.h: IterKey. Write a test for it in dbformat_test
  Use IterKey in block::Iter to replace std::string to reduce malloc.

  Evaluate it using perf record.
  malloc: 4.26% -> 2.91%
  free: 3.61% -> 3.08%

Test Plan:
  make all check
  ./valgrind db_test dbformat_test

Reviewers: ljin, haobo, yhchiang, dhruba, igor, sdong

Reviewed By: sdong

Differential Revision: https://reviews.facebook.net/D20433
2014-07-23 12:31:11 -07:00
..
builder.cc integrate rate limiter into rocksdb 2014-07-08 12:31:49 -07:00
builder.h integrate rate limiter into rocksdb 2014-07-08 12:31:49 -07:00
c.cc Add PlainTableOptions 2014-07-18 00:08:38 -07:00
c_test.c C API: create missing cf's, cleanup 2014-07-10 12:55:53 -07:00
column_family.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
column_family.h Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
column_family_test.cc Remove seek compaction 2014-06-20 10:23:02 +02:00
compaction.cc Fixed a bug in Compaction.cc where input_levels_ was not properly resized. 2014-07-23 10:22:21 -07:00
compaction.h Fixed a signed and unsigned comparison in Compaction 2014-07-17 16:37:25 -07:00
compaction_picker.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
compaction_picker.h Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
corruption_test.cc Fix corruption test 2014-04-24 14:56:41 -04:00
db_bench.cc add options.block_restart_interval in db_bench 2014-07-21 12:01:40 -07:00
db_filesnapshot.cc Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -07:00
db_impl.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
db_impl.h Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
db_impl_debug.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
db_impl_readonly.cc Remove seek compaction 2014-06-20 10:23:02 +02:00
db_impl_readonly.h Remove stats logger 2014-07-15 09:16:32 -04:00
db_iter.cc Add Prev() for merge operator 2014-07-15 16:10:18 -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_iter_test.cc Fix clang compiler warnings 2014-07-20 22:57:20 +08:00
db_test.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
dbformat.cc macros for perf_context 2014-04-08 10:58:07 -07:00
dbformat.h Use IterKey instead of string in Block::Iter to reduce malloc 2014-07-23 12:31:11 -07:00
dbformat_test.cc Use IterKey instead of string in Block::Iter to reduce malloc 2014-07-23 12:31:11 -07:00
deletefile_test.cc
file_indexer.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
file_indexer.h Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
file_indexer_test.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
filename.cc Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
filename.h Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
filename_test.cc Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
forward_iterator.cc ForwardIterator seek bugfix 2014-07-10 16:46:13 -07:00
forward_iterator.h Fix compile errors on Mac 2014-06-03 12:28:58 -07:00
internal_stats.cc make internal stats independent of statistics 2014-07-21 12:57:29 -07:00
internal_stats.h make internal stats independent of statistics 2014-07-21 12:57:29 -07:00
log_and_apply_bench.cc Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -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 use arena to allocate memtable's bloomfilter and hashskiplist's buckets_ 2014-06-30 15:54:31 -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 Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -07:00
memtable_list.h Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -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 Move include/utilities/*.h to include/rocksdb/utilities/*.h 2014-07-23 10:21:38 -04:00
perf_context_test.cc Missing includes 2014-03-14 13:02:20 -07:00
plain_table_db_test.cc Adding option to save PlainTable index and bloom filter in SST file. 2014-07-18 16:58:13 -07:00
prefix_test.cc HashLinkList memtable switches a bucket to a skip list to reduce performance outliers 2014-07-01 17:14:15 -07:00
repair.cc Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
simple_table_db_test.cc Remove seek compaction 2014-06-20 10:23:02 +02:00
skiplist.h Consolidate SliceTransform object ownership 2014-03-10 12:56:46 -07:00
skiplist_test.cc
snapshot.h
table_cache.cc Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -07:00
table_cache.h Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
table_properties_collector.cc
table_properties_collector.h TablePropertiesCollectorFactory 2014-05-13 12:30:55 -07:00
table_properties_collector_test.cc Add PlainTableOptions 2014-07-18 00:08:38 -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 Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -07:00
version_edit.h use FileLevel in LevelFileNumIterator 2014-07-11 12:52:41 -07:00
version_edit_test.cc Support Multiple DB paths (without having an interface to expose to users) 2014-07-02 21:14:44 -07:00
version_set.cc Allow user to specify DB path of output file of manual compaction 2014-07-21 19:06:00 -07:00
version_set.h make internal stats independent of statistics 2014-07-21 12:57:29 -07:00
version_set_test.cc Fix clang compiler warnings 2014-07-20 22:57:20 +08:00
write_batch.cc JSON (Document) API sketch 2014-07-10 09:31:42 -07:00
write_batch_internal.h JSON (Document) API sketch 2014-07-10 09:31:42 -07:00
write_batch_test.cc kill ReadOptions.prefix and .prefix_seek 2014-04-25 12:21:34 -07:00