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anand76 e81393e81e Add some stats to observe the usefulness of scan prefetching (#11981) 
Summary:
Add stats for better observability of scan prefetching. Its only implemented for sync scan right now. These stats can help inform future improvements in scan prefetching.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11981

Test Plan: Add a new unit test

Reviewed By: akankshamahajan15

Differential Revision: D50516505

Pulled By: anand1976

fbshipit-source-id: cb1cc6cf02df8295930a49c62b11870020df3f97
 		2023-10-23 14:42:44 -07:00
..
file_read_sample.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
histogram.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
histogram.h clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
histogram_test.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
histogram_windowing.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
histogram_windowing.h clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
in_memory_stats_history.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
in_memory_stats_history.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
instrumented_mutex.cc Inject spurious wakeup and sleep before acquiring db mutex to expose race condition (#10291) 2022-09-12 13:55:23 -07:00
instrumented_mutex.h Fix race in options taking effect (#11929) 2023-10-12 10:05:23 -07:00
iostats_context.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
iostats_context_imp.h Fix build error with NIOSTATS_CONTEXT (#10506) 2022-08-23 15:00:14 -07:00
iostats_context_test.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
perf_context.cc Block fetch CPU time counters in perf context (#11342) 2023-04-15 11:09:44 -07:00
perf_context_imp.h Remove ROCKSDB_SUPPORT_THREAD_LOCAL define because it's a part of C++11 (#10015) 2022-05-18 15:25:19 -07:00
perf_level.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
perf_level_imp.h clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
perf_step_timer.h Change internal headers with duplicate names (#11408) 2023-05-17 11:27:09 -07:00
persistent_stats_history.cc clang format files under monitoring/ (#10857) 2022-10-24 20:45:54 -07:00
persistent_stats_history.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
statistics.cc Add some stats to observe the usefulness of scan prefetching (#11981) 2023-10-23 14:42:44 -07:00
statistics_impl.h Change internal headers with duplicate names (#11408) 2023-05-17 11:27:09 -07:00
statistics_test.cc Remove RocksDB LITE (#11147) 2023-01-27 13:14:19 -08:00
stats_history_test.cc New tickers on deletion compactions grouped by reasons (#11957) 2023-10-18 18:00:07 -07:00
thread_status_impl.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
thread_status_updater.cc Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
thread_status_updater.h Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
thread_status_updater_debug.cc Replace reinterpret_cast with static_cast_with_check (#7067) 2020-07-02 19:25:41 -07:00
thread_status_util.cc Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
thread_status_util.h Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
thread_status_util_debug.cc GetEntity Support for ReadOnlyDB and SecondaryDB (#11799) 2023-09-15 08:30:44 -07:00