fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Dhruba Borthakur 1ca0584345 This is the mega-patch multi-threaded compaction ... published in https://reviews.facebook.net/D5997. Summary: This patch allows compaction to occur in multiple background threads concurrently. If a manual compaction is issued, the system falls back to a single-compaction-thread model. This is done to ensure correctess and simplicity of code. When the manual compaction is finished, the system resumes its concurrent-compaction mode automatically. The updates to the manifest are done via group-commit approach. Test Plan: run db_bench		12 years ago
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arena.cc	A number of fixes:	13 years ago
arena.h	A number of fixes:	13 years ago
arena_test.cc	A number of fixes:	13 years ago
bloom.cc	bits_per_key is already configurable. It defines how many bloom bits will be used for every key in the database.	13 years ago
bloom_test.cc	Added bloom filter support.	13 years ago
build_version.h	Record the version of the source repository that was used to build the leveldb library.	12 years ago
cache.cc	Print the block cache size in the LOG.	12 years ago
cache_test.cc	A number of fixes:	13 years ago
coding.cc	A number of fixes:	13 years ago
coding.h	A number of fixes:	13 years ago
coding_test.cc	merge 1.5	12 years ago
comparator.cc	merge 1.5	12 years ago
crc32c.cc	SSE4 optimization	13 years ago
crc32c.h	A number of fixes:	13 years ago
crc32c_test.cc	A number of fixes:	13 years ago
env.cc	fixed issues 66 (leaking files on disk error) and 68 (no sync of CURRENT file)	13 years ago
env_hdfs.cc	Clean up compiler warnings generated by -Wall option.	12 years ago
env_posix.cc	This is the mega-patch multi-threaded compaction	12 years ago
env_test.cc	fixed issues 66 (leaking files on disk error) and 68 (no sync of CURRENT file)	13 years ago
filelock_test.cc	Prevent concurrent multiple opens of leveldb database.	12 years ago
filter_policy.cc	Added bloom filter support.	13 years ago
hash.cc	A number of fixes:	13 years ago
hash.h	reverting disastrous MOE commit, returning to r21	14 years ago
histogram.cc	A number of fixes:	13 years ago
histogram.h	A number of fixes:	13 years ago
logging.cc	A number of fixes:	13 years ago
logging.h	A number of fixes:	13 years ago
murmurhash.cc	Implement RowLocks for assoc schema	12 years ago
murmurhash.h	Implement RowLocks for assoc schema	12 years ago
mutexlock.h	Implement ReadWrite locks for leveldb	12 years ago
options.cc	This is the mega-patch multi-threaded compaction	12 years ago
posix_logger.h	A number of fixes:	13 years ago
random.h	A number of fixes:	13 years ago
stats_logger.h	Clean up compiler warnings generated by -Wall option.	12 years ago
status.cc	A number of fixes:	13 years ago
testharness.cc	A number of fixes:	13 years ago
testharness.h	A number of fixes:	13 years ago
testutil.cc	A number of fixes:	13 years ago
testutil.h	A number of fixes:	13 years ago