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

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Haobo Xu d9dd2a1926 [RocksDB] Expose thread local perf counter for low overhead, per call level performance statistics. ... Summary: As title. No locking/atomic is needed due to thread local. There is also no need to modify the existing client interface, in order to expose related counters. perf_context_test shows a simple example of retrieving the number of user key comparison done for each put and get call. More counters could be added later. Sample output ./perf_context_test 1000000 ==== Test PerfContextTest.KeyComparisonCount Inserting 1000000 key/value pairs ... total user key comparison get: 43446523 total user key comparison put: 8017877 max user key comparison get: 88939 avg user key comparison get:43 Basically, the current skiplist does well on average, but could perform poorly in extreme cases. Test Plan: run perf_context_test <total number of entries to put/get> Reviewers: dhruba Differential Revision: https://reviews.facebook.net/D12225		11 years ago
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arena.h	Make arena block size configurable	11 years ago
c.h	Fix poor error on num_levels mismatch and few other minor improvements	12 years ago
cache.h	Codemod NULL to nullptr	12 years ago
compaction_filter.h	Separate compaction filter for each compaction	11 years ago
comparator.h	A number of fixes:	13 years ago
db.h	Expand KeyMayExist to return the proper value if it can be found in memory and also check block_cache	11 years ago
env.h	[RocksDB] Option for incremental sync	11 years ago
filter_policy.h	Added bloom filter support.	13 years ago
iterator.h	A number of fixes:	13 years ago
ldb_tool.h	[RocksDB] Expose LDB functioanality as a library call - clients can build their own LDB binary with additional options	12 years ago
memtablerep.h	Make arena block size configurable	11 years ago
merge_operator.h	[RocksDB] [MergeOperator] The new Merge Interface! Uses merge sequences.	11 years ago
options.h	Prefix filters for scans (v4)	11 years ago
perf_context.h	[RocksDB] Expose thread local perf counter for low overhead, per call level performance statistics.	11 years ago
slice.h	manifest_dump: Add --hex=1 option	12 years ago
slice_transform.h	Prefix filters for scans (v4)	11 years ago
statistics.h	Counter for merge failure	11 years ago
status.h	[Rocksdb] Support Merge operation in rocksdb	12 years ago
table_builder.h	Fix all the lint errors.	12 years ago
transaction_log_iterator.h	Do not allow Transaction Log Iterator to fall ahead when writer is writing the same file	12 years ago
types.h	GetUpdatesSince API to enable replication.	12 years ago
universal_compaction.h	Renamed 'hybrid_compaction' tp be "Universal Compaction'.	11 years ago
write_batch.h	[RocksDB] Expose count for WriteBatch	11 years ago