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4012ca1c7b
rocksdb/util
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Dhruba Borthakur 4012ca1c7b Added a parameter to limit the maximum space amplification for universal compaction. 
Summary:
Added a new field called max_size_amplification_ratio in the
CompactionOptionsUniversal structure. This determines the maximum
percentage overhead of space amplification.

The size amplification is defined to be the ratio between the size of
the oldest file to the sum of the sizes of all other files. If the
size amplification exceeds the specified value, then min_merge_width
and max_merge_width are ignored and a full compaction of all files is done.
A value of 10 means that the size a database that stores 100 bytes
of user data could occupy 110 bytes of physical storage.

Test Plan: Unit test DBTest.UniversalCompactionSpaceAmplification added.

Reviewers: haobo, emayanke, xjin

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D12825
2013-09-13 16:27:18 -07:00
..
arena_impl.cc Make arena block size configurable 2013-07-31 12:42:23 -07:00
arena_impl.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
arena_test.cc Make arena block size configurable 2013-07-31 12:42:23 -07:00
auto_roll_logger_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
auto_roll_logger.cc [RocksDB] Fix PosixLogger and AutoRollLogger thread safety 2013-05-21 11:39:44 -07:00
auto_roll_logger.h [RocksDB] Fix PosixLogger and AutoRollLogger thread safety 2013-05-21 11:39:44 -07:00
bit_set.h [Rocksdb] Implement filluniquerandom 2013-06-14 16:17:56 -07:00
bloom_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
bloom.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
build_version.h Stop continually re-creating build_version.c 2013-01-24 17:51:39 -08:00
cache_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
cache.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
coding_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
coding.cc Add three new MemTableRep's 2013-08-22 23:10:02 -07:00
coding.h Add three new MemTableRep's 2013-08-22 23:10:02 -07:00
comparator.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
crc32c_test.cc Fix all warnings generated by -Wall option to the compiler. 2012-11-06 14:07:31 -08:00
crc32c.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
crc32c.h A number of fixes: 2011-10-31 17:22:06 +00:00
env_hdfs.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
env_posix.cc [RocksDB] Enhance Env to support two thread pools LOW and HIGH 2013-09-12 16:15:36 -07:00
env_test.cc [RocksDB] Enhance Env to support two thread pools LOW and HIGH 2013-09-12 16:15:36 -07:00
env.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
filelock_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
filter_policy.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
hash.cc A number of fixes: 2011-10-31 17:22:06 +00:00
hash.h reverting disastrous MOE commit, returning to r21 2011-04-19 23:11:15 +00:00
histogram_test.cc Introduce histogram in statistics.h 2013-02-20 10:43:32 -08:00
histogram.cc [Rocksdb] Remove unused double apis to record into histograms 2013-05-16 10:40:30 -07:00
histogram.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
ldb_cmd_execute_result.h Enhanced ldb to support data access commands 2013-01-28 11:38:26 -08:00
ldb_cmd.cc New ldb command to convert compaction style 2013-09-04 13:13:08 -07:00
ldb_cmd.h New ldb command to convert compaction style 2013-09-04 13:13:08 -07:00
ldb_tool.cc New ldb command to convert compaction style 2013-09-04 13:13:08 -07:00
logging.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
logging.h A number of fixes: 2011-10-31 17:22:06 +00:00
manual_compaction_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
murmurhash.cc Implement RowLocks for assoc schema 2012-10-03 23:19:01 -07:00
murmurhash.h Implement RowLocks for assoc schema 2012-10-03 23:19:01 -07:00
mutexlock.h Implement ReadWrite locks for leveldb 2012-10-01 22:37:39 -07:00
options.cc Added a parameter to limit the maximum space amplification for universal compaction. 2013-09-13 16:27:18 -07:00
perf_context_imp.h [RocksDB] Added nano second stopwatch and new perf counters to track block read cost 2013-09-07 21:14:54 -07:00
perf_context.cc [RocksDB] Added nano second stopwatch and new perf counters to track block read cost 2013-09-07 21:14:54 -07:00
posix_logger.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
random.h [RocksDB] Include 64bit random number generator 2013-06-04 13:52:27 -07:00
signal_test.cc [RocksDB] fix build 2013-04-20 10:26:51 -07:00
skiplistrep.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
slice.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
stack_trace.h [RocksDB] Add stacktrace signal handler 2013-04-20 10:26:50 -07:00
statistics.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
stats_logger.h Clean up compiler warnings generated by -Wall option. 2012-08-29 14:24:51 -07:00
status.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
stl_wrappers.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
stop_watch.h [RocksDB] Added nano second stopwatch and new perf counters to track block read cost 2013-09-07 21:14:54 -07:00
string_util.cc Ability to set different size fanout multipliers for every level. 2013-05-21 13:50:20 -07:00
string_util.h Ability to set different size fanout multipliers for every level. 2013-05-21 13:50:20 -07:00
testharness.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
testharness.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
testutil.cc Fix all warnings generated by -Wall option to the compiler. 2012-11-06 14:07:31 -08:00
testutil.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
transformrep.cc Fix memory leak 2013-08-23 15:39:49 -07:00
vectorrep.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00