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Deon Nicholas ad48c3c262 Benchmarking for Merge Operator 
Summary:
Updated db_bench and utilities/merge_operators.h to allow for dynamic benchmarking
of merge operators in db_bench. Added a new test (--benchmarks=mergerandom), which performs
a bunch of random Merge() operations over random keys. Also added a "--merge_operator=" flag
so that the tester can easily benchmark different merge operators. Currently supports
the PutOperator and UInt64Add operator. Support for stringappend or list append may come later.

Test Plan:
	1. make db_bench
	2. Test the PutOperator (simulating Put) as follows:
./db_bench --benchmarks=fillrandom,readrandom,updaterandom,readrandom,mergerandom,readrandom --merge_operator=put
--threads=2

3. Test the UInt64AddOperator (simulating numeric addition) similarly:
./db_bench --value_size=8 --benchmarks=fillrandom,readrandom,updaterandom,readrandom,mergerandom,readrandom
--merge_operator=uint64add --threads=2

Reviewers: haobo, dhruba, zshao, MarkCallaghan

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D11535
2013-08-15 17:13:07 -07:00
..
.nfs00000000066c9ebb00000002 Enhance db_bench 2013-03-14 16:00:23 -07:00
builder.cc Merge branch 'performance' of github.com:facebook/rocksdb into performance 2013-08-07 11:58:06 -07:00
builder.h [RocksDB] cleanup EnvOptions 2013-06-12 11:17:19 -07:00
c.cc
c_test.c
corruption_test.cc Make arena block size configurable 2013-07-31 12:42:23 -07:00
db_bench.cc Benchmarking for Merge Operator 2013-08-15 17:13:07 -07:00
db_filesnapshot.cc [Rocksdb] Log on disable/enable file deletions 2013-06-05 10:48:24 -07:00
db_impl.cc Minor fix to current codes 2013-08-14 23:03:57 -07:00
db_impl.h Add soft and hard rate limit support 2013-08-05 15:43:49 -07:00
db_impl_readonly.cc [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00
db_impl_readonly.h [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00
db_iter.cc Implement log blobs 2013-08-14 16:32:46 -07:00
db_iter.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
db_statistics.h [RocksDB] Expose DBStatistics 2013-05-23 11:49:38 -07:00
db_stats_logger.cc
db_test.cc Implement log blobs 2013-08-14 16:32:46 -07:00
dbformat.cc [RocksDB] Expose thread local perf counter for low overhead, per call level performance statistics. 2013-08-14 15:24:06 -07:00
dbformat.h Implement log blobs 2013-08-14 16:32:46 -07:00
dbformat_test.cc
filename.cc Allow the logs to be purged by TTL. 2013-02-04 19:42:40 -08:00
filename.h
filename_test.cc
log_file.h
log_format.h Fixed sign-comparison in rocksdb code-base and fixed Makefile 2013-03-19 14:35:23 -07:00
log_reader.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
log_reader.h TransactionLogIter should stall at the last record. Currently it errors out 2013-03-21 15:12:35 -07:00
log_test.cc Fix more signed-unsigned comparisons 2013-03-19 17:21:36 -07:00
log_writer.cc
log_writer.h
memtable.cc Implement log blobs 2013-08-14 16:32:46 -07:00
memtable.h Counter for merge failure 2013-08-13 14:25:42 -07:00
memtablelist.cc Counter for merge failure 2013-08-13 14:25:42 -07:00
memtablelist.h [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00
merge_helper.cc Counter for merge failure 2013-08-13 14:25:42 -07:00
merge_helper.h Counter for merge failure 2013-08-13 14:25:42 -07:00
merge_operator.cc [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00
merge_test.cc Build fix with merge_test and ttl 2013-08-06 11:42:21 -07:00
perf_context.cc [RocksDB] Expose thread local perf counter for low overhead, per call level performance statistics. 2013-08-14 15:24:06 -07:00
perf_context_test.cc [RocksDB] Expose thread local perf counter for low overhead, per call level performance statistics. 2013-08-14 15:24:06 -07:00
prefix_filter_iterator.h Prefix filters for scans (v4) 2013-08-13 14:04:56 -07:00
repair.cc Merge branch 'master' into performance 2013-08-02 10:22:08 -07:00
skiplist.h Make arena block size configurable 2013-07-31 12:42:23 -07:00
skiplist_test.cc Make arena block size configurable 2013-07-31 12:42:23 -07:00
skiplistrep.h Make arena block size configurable 2013-07-31 12:42:23 -07:00
snapshot.h [RocksDB] fix compaction filter trigger condition 2013-05-13 12:33:02 -07:00
table_cache.cc Use KeyMayExist for WriteBatch-Deletes 2013-07-23 13:36:50 -07:00
table_cache.h Use KeyMayExist for WriteBatch-Deletes 2013-07-23 13:36:50 -07:00
transaction_log_iterator_impl.cc [RocksDB] cleanup EnvOptions 2013-06-12 11:17:19 -07:00
transaction_log_iterator_impl.h [RocksDB] cleanup EnvOptions 2013-06-12 11:17:19 -07:00
version_edit.cc Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_edit.h Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_edit_test.cc Reduce write amplification by merging files in L0 back into L0 2013-06-30 20:07:04 -07:00
version_set.cc Implement log blobs 2013-08-14 16:32:46 -07:00
version_set.h Universal Compaction should keep DeleteMarkers unless it is the earliest file. 2013-08-09 14:03:57 -07:00
version_set_reduce_num_levels.cc Fix valgrind errors in rocksdb tests: auto_roll_logger_test, reduce_levels_test 2013-03-12 16:03:16 -07:00
version_set_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
write_batch.cc Implement log blobs 2013-08-14 16:32:46 -07:00
write_batch_internal.h Use KeyMayExist for WriteBatch-Deletes 2013-07-23 13:36:50 -07:00
write_batch_test.cc Implement log blobs 2013-08-14 16:32:46 -07:00