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

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Mark Callaghan 993543d1be Add rate_delay_limit_milliseconds ... Summary: This adds the rate_delay_limit_milliseconds option to make the delay configurable in MakeRoomForWrite when the max compaction score is too high. This delay is called the Ln slowdown. This change also counts the Ln slowdown per level to make it possible to see where the stalls occur. From IO-bound performance testing, the Level N stalls occur: * with compression -> at the largest uncompressed level. This makes sense because compaction for compressed levels is much slower. When Lx is uncompressed and Lx+1 is compressed then files pile up at Lx because the (Lx,Lx+1)->Lx+1 compaction process is the first to be slowed by compression. * without compression -> at level 1 Task ID: #1832108 Blame Rev: Test Plan: run with real data, added test Revert Plan: Database Impact: Memcache Impact: Other Notes: EImportant: - begin *PUBLIC* platform impact section - Bugzilla: # - end platform impact - Reviewers: dhruba Reviewed By: dhruba Differential Revision: https://reviews.facebook.net/D9045		12 years ago
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arena.cc	Codemod NULL to nullptr	12 years ago
arena.h	A number of fixes:	13 years ago
arena_test.cc	Fix all warnings generated by -Wall option to the compiler.	12 years ago
auto_roll_logger.cc	Allow the logs to be purged by TTL.	12 years ago
auto_roll_logger.h	Allow the logs to be purged by TTL.	12 years ago
auto_roll_logger_test.cc	Fix the "IO error" in auto_roll_logger_test	12 years ago
bloom.cc	Fix all the lint errors.	12 years ago
bloom_test.cc	Fix all warnings generated by -Wall option to the compiler.	12 years ago
build_version.h	Stop continually re-creating build_version.c	12 years ago
cache.cc	Codemod NULL to nullptr	12 years ago
cache_test.cc	Codemod NULL to nullptr	12 years ago
coding.cc	Codemod NULL to nullptr	12 years ago
coding.h	Codemod NULL to nullptr	12 years ago
coding_test.cc	Codemod NULL to nullptr	12 years ago
comparator.cc	merge 1.5	12 years ago
crc32c.cc	Codemod NULL to nullptr	12 years ago
crc32c.h	A number of fixes:	13 years ago
crc32c_test.cc	Fix all warnings generated by -Wall option to the compiler.	12 years ago
env.cc	Fix a number of object lifetime/ownership issues	12 years ago
env_hdfs.cc	Codemod NULL to nullptr	12 years ago
env_posix.cc	Codemod NULL to nullptr	12 years ago
env_test.cc	Codemod NULL to nullptr	12 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	Introduce histogram in statistics.h	12 years ago
histogram.h	Introduce histogram in statistics.h	12 years ago
histogram_test.cc	Introduce histogram in statistics.h	12 years ago
ldb_cmd.cc	ldb waldump to print the keys along with other stats + NULL to nullptr in ldb_cmd.cc	12 years ago
ldb_cmd.h	ldb waldump to print the keys along with other stats + NULL to nullptr in ldb_cmd.cc	12 years ago
ldb_cmd_execute_result.h	Enhanced ldb to support data access commands	12 years ago
logging.cc	Fix all warnings generated by -Wall option to the compiler.	12 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	Add rate_delay_limit_milliseconds	12 years ago
posix_logger.h	Codemod NULL to nullptr	12 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	Codemod NULL to nullptr	12 years ago
stop_watch.h	Introduce histogram in statistics.h	12 years ago
testharness.cc	Codemod NULL to nullptr	12 years ago
testharness.h	A number of fixes:	13 years ago
testutil.cc	Fix all warnings generated by -Wall option to the compiler.	12 years ago
testutil.h	Fix a number of object lifetime/ownership issues	12 years ago