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Andrew Kryczka 01bcc34896 Introduce library-independent default compression level 
Summary:
Previously we were using -1 as the default for every library, which was legacy from our zlib options. That worked for a while, but after zstd introduced a146ee04ae, it started giving poor compression ratios by default in zstd.

This PR adds a constant to RocksDB public API, `CompressionOptions::kDefaultCompressionLevel`, which will get translated to the default value specific to the compression library being used in "util/compression.h". The constant uses a number that appears to be larger than any library's maximum compression level.
Closes https://github.com/facebook/rocksdb/pull/3895

Differential Revision: D8125780

Pulled By: ajkr

fbshipit-source-id: 2db157a89118cd4f94577c2f4a0a5ff31c8391c6
2018-05-23 18:42:08 -07:00
..
aligned_buffer.h
Align SST file data blocks to avoid spanning multiple pages
2018-03-26 20:26:10 -07:00
allocator.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
arena_test.cc
arena: derive alignment unit from std::max_align_t
2017-10-17 11:13:19 -07:00
arena.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
arena.h
arena: derive alignment unit from std::max_align_t
2017-10-17 11:13:19 -07:00
auto_roll_logger_test.cc
fix memory leak in two_level_iterator
2018-04-15 17:26:26 -07:00
auto_roll_logger.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
auto_roll_logger.h
Fix the Logger::Close() and DBImpl::Close() design pattern
2018-02-23 13:57:26 -08:00
autovector_test.cc
fix memory leak in two_level_iterator
2018-04-15 17:26:26 -07:00
autovector.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
bloom_test.cc
fix gflags namespace
2017-12-01 10:42:05 -08:00
bloom.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
build_version.cc.in
Makefile: generate util/build_version.cc from .in file (#1384)
2016-10-25 11:31:39 -07:00
build_version.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
cast_util.h
Add a missing "once" in .h
2017-07-31 12:12:03 -07:00
channel.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
coding_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
coding.cc
Enable MSVC W4 with a few exceptions. Fix warnings and bugs
2017-10-19 10:57:12 -07:00
coding.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
compaction_job_stats_impl.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
comparator.cc
Implement key shortening functions in ReverseBytewiseComparator
2018-05-17 18:27:16 -07:00
compression.h
Introduce library-independent default compression level
2018-05-23 18:42:08 -07:00
concurrent_arena.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
concurrent_arena.h
util: Fix coverity issues
2017-11-03 14:42:08 -07:00
core_local.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
crc32c_ppc_asm.S
Updated CRC32 Power Optimization Changes
2017-08-31 14:16:30 -07:00
crc32c_ppc_constants.h
Make it explicit blob db doesn't support CF
2017-09-08 11:11:04 -07:00
crc32c_ppc.c
Updated CRC32 Power Optimization Changes
2017-08-31 14:16:30 -07:00
crc32c_ppc.h
Updated CRC32 Power Optimization Changes
2017-08-31 14:16:30 -07:00
crc32c_test.cc
Port 3 way SSE4.2 crc32c implementation from Folly
2017-12-19 18:26:49 -08:00
crc32c.cc
Suppress UBSAN error in finer guanularity
2018-02-13 12:18:07 -08:00
crc32c.h
Updated CRC32 Power Optimization Changes
2017-08-31 14:16:30 -07:00
delete_scheduler_test.cc
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
delete_scheduler.cc
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
delete_scheduler.h
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
duplicate_detector.h
Improve db_stress with transactions
2018-04-18 16:32:35 -07:00
dynamic_bloom_test.cc
fix gflags namespace
2017-12-01 10:42:05 -08:00
dynamic_bloom.cc
Use nullptr instead of NULL / 0 more consistently.
2018-03-07 12:42:12 -08:00
dynamic_bloom.h
Enable MSVC W4 with a few exceptions. Fix warnings and bugs
2017-10-19 10:57:12 -07:00
event_logger_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
event_logger.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
event_logger.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
fault_injection_test_env.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
fault_injection_test_env.h
Fix FaultInjectionTestEnv to work with DirectIO
2018-03-14 00:57:24 -07:00
file_reader_writer_test.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
file_reader_writer.cc
Apply use_direct_io_for_flush_and_compaction to writes only
2018-05-09 19:42:58 -07:00
file_reader_writer.h
Pass manual_wal_flush also to the first wal file
2018-05-14 10:57:56 -07:00
file_util.cc
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
file_util.h
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
filelock_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
filename.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
filename.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
filter_policy.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
gflags_compat.h
fix gflags namespace
2017-12-01 10:42:05 -08:00
hash_map.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
hash_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
hash.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
hash.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
heap_test.cc
fix gflags namespace
2017-12-01 10:42:05 -08:00
heap.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
kv_map.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
log_buffer.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
log_buffer.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
log_write_bench.cc
fix gflags namespace
2017-12-01 10:42:05 -08:00
logging.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
memory_usage.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
murmurhash.cc
Suppress UBSAN error in finer guanularity
2018-02-13 12:18:07 -08:00
murmurhash.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
mutexlock.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
ppc-opcode.h
Updated CRC32 Power Optimization Changes
2017-08-31 14:16:30 -07:00
random.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
random.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
rate_limiter_test.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
rate_limiter.cc
rate limit auto-tuning
2017-10-04 19:15:01 -07:00
rate_limiter.h
rate limit auto-tuning
2017-10-04 19:15:01 -07:00
set_comparator.h
WritePrepared Txn: Move DuplicateDetector to util
2018-03-05 23:57:12 -08:00
slice_transform_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
slice.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
sst_file_manager_impl.cc
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
sst_file_manager_impl.h
Sync parent directory after deleting a file in delete scheduler
2018-04-26 13:58:20 -07:00
status_message.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
status.cc
make MockTimeEnv::current_time_ atomic to fix data race
2018-04-10 14:13:18 -07:00
stderr_logger.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
stop_watch.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
string_util.cc
Several small "fixes"
2018-02-15 16:57:37 -08:00
string_util.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
sync_point_impl.cc
Refactor sync_point to make implementation either customizable or replaceable
2018-03-23 12:56:52 -07:00
sync_point_impl.h
Refactor sync_point to make implementation either customizable or replaceable
2018-03-23 12:56:52 -07:00
sync_point.cc
Refactor sync_point to make implementation either customizable or replaceable
2018-03-23 12:56:52 -07:00
sync_point.h
Refactor sync_point to make implementation either customizable or replaceable
2018-03-23 12:56:52 -07:00
testharness.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
testharness.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
testutil.cc
comment unused parameters to turn on -Wunused-parameter flag
2018-04-12 17:59:16 -07:00
testutil.h
Assert keys/values pinned by range deletion meta-block iterators
2018-05-21 09:57:00 -07:00
thread_list_test.cc
Use nullptr instead of NULL / 0 more consistently.
2018-03-07 12:42:12 -08:00
thread_local_test.cc
Comment out unused variables
2018-03-05 13:13:41 -08:00
thread_local.cc
util: Fix coverity issues
2017-11-03 14:42:08 -07:00
thread_local.h
Fix deadlock in ColumnFamilyData::InstallSuperVersion()
2018-02-16 08:13:34 -08:00
thread_operation.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
threadpool_imp.cc
Support lowering CPU priority of background threads
2018-04-24 08:41:51 -07:00
threadpool_imp.h
Support lowering CPU priority of background threads
2018-04-24 08:41:51 -07:00
timer_queue_test.cc
Change RocksDB License
2017-07-15 16:11:23 -07:00
timer_queue.h
Change RocksDB License
2017-07-15 16:11:23 -07:00
transaction_test_util.cc
WritePrepared Txn: enable rollback in stress test
2018-05-02 18:13:05 -07:00
transaction_test_util.h
WritePrepared Txn: stress test
2017-12-06 09:42:28 -08:00
xxhash.cc
fixed typo
2017-06-05 11:27:34 -07:00
xxhash.h
Prevent xxhash symbols from polluting global namespace
2015-03-12 12:07:10 -07:00