rocksdb/utilities/merge_operators/string_append
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
..
stringappend.cc Benchmarking for Merge Operator 2013-08-15 17:13:07 -07:00
stringappend.h [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00
stringappend2.cc Benchmarking for Merge Operator 2013-08-15 17:13:07 -07:00
stringappend2.h Benchmarking for Merge Operator 2013-08-15 17:13:07 -07:00
stringappend_test.cc [RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences. 2013-08-05 20:14:32 -07:00