mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 07:30:54 +00:00
0f91c72adc
Summary: This change establishes a distinctive name for the experimental new lock-free clock cache (originally developed by guidotag and revamped in PR https://github.com/facebook/rocksdb/issues/10626). A few reasons: * We want to make it clear that this is a fundamentally different implementation vs. the old clock cache, to avoid people saying "I already tried clock cache." * We want to highlight the key feature: it's fast (especially under parallel load) * Because it requires an estimated charge per entry, it is not drop-in API compatible with old clock cache. This estimate might always be required for highest performance, and giving it a distinct name should reduce confusion about the distinct API requirements. * We might develop a variant requiring the same estimate parameter but with LRU eviction. In that case, using the name HyperLRUCache should make things more clear. (FastLRUCache is just a prototype that might soon be removed.) Some API detail: * To reduce copy-pasting parameter lists, etc. as in LRUCache construction, I have a `MakeSharedCache()` function on `HyperClockCacheOptions` instead of `NewHyperClockCache()`. * Changes -cache_type=clock_cache to -cache_type=hyper_clock_cache for applicable tools. I think this is more consistent / sustainable for reasons already stated. For performance tests see https://github.com/facebook/rocksdb/pull/10626 Pull Request resolved: https://github.com/facebook/rocksdb/pull/10684 Test Plan: no interesting functional changes; tests updated Reviewed By: anand1976 Differential Revision: D39547800 Pulled By: pdillinger fbshipit-source-id: 5c0fe1b5cf3cb680ab369b928c8569682b9795bf |
||
|---|---|---|
| .. | ||
| advisor | ||
| block_cache_analyzer | ||
| dump | ||
| analyze_txn_stress_test.sh | ||
| auto_sanity_test.sh | ||
| backup_db.sh | ||
| benchmark.sh | ||
| benchmark_ci.py | ||
| benchmark_compare.sh | ||
| benchmark_leveldb.sh | ||
| blob_dump.cc | ||
| check_all_python.py | ||
| check_format_compatible.sh | ||
| CMakeLists.txt | ||
| db_bench.cc | ||
| db_bench_tool.cc | ||
| db_bench_tool_test.cc | ||
| db_crashtest.py | ||
| db_repl_stress.cc | ||
| db_sanity_test.cc | ||
| dbench_monitor | ||
| Dockerfile | ||
| generate_random_db.sh | ||
| ingest_external_sst.sh | ||
| io_tracer_parser.cc | ||
| io_tracer_parser_test.cc | ||
| io_tracer_parser_tool.cc | ||
| io_tracer_parser_tool.h | ||
| ldb.cc | ||
| ldb_cmd.cc | ||
| ldb_cmd_impl.h | ||
| ldb_cmd_test.cc | ||
| ldb_test.py | ||
| ldb_tool.cc | ||
| pflag | ||
| reduce_levels_test.cc | ||
| regression_test.sh | ||
| restore_db.sh | ||
| rocksdb_dump_test.sh | ||
| run_blob_bench.sh | ||
| run_flash_bench.sh | ||
| run_leveldb.sh | ||
| sample-dump.dmp | ||
| simulated_hybrid_file_system.cc | ||
| simulated_hybrid_file_system.h | ||
| sst_dump.cc | ||
| sst_dump_test.cc | ||
| sst_dump_tool.cc | ||
| trace_analyzer.cc | ||
| trace_analyzer_test.cc | ||
| trace_analyzer_tool.cc | ||
| trace_analyzer_tool.h | ||
| verify_random_db.sh | ||
| write_external_sst.sh | ||
| write_stress.cc | ||
| write_stress_runner.py | ||