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rocksdb/util
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Islam AbdelRahman b49b92cf28 Introduce Read amplification bitmap (read amp statistics) 
Summary:
Add ReadOptions::read_amp_bytes_per_bit option which allow us to create a bitmap for every data block we read
the bitmap will contain (block_size / read_amp_bytes_per_bit) bits.

We will use this bitmap to mark which bytes have been used of the block so we can calculate the read amplification

Test Plan: added new tests

Reviewers: andrewkr, yhchiang, sdong

Reviewed By: sdong

Subscribers: yiwu, leveldb, march, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D58707
2016-08-26 18:55:58 -07:00
..
aligned_buffer.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
allocator.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
arena_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
arena.cc
util/arena.cc: FreeBSD: More portable use of mmap(MAP_ANON) (#1254)
2016-08-10 13:52:23 -07:00
arena.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
autovector_test.cc
Eliminate use of 'using namespace std'. Also remove a number of ADL references to std functions.
2016-05-20 07:42:18 -07:00
autovector.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
bloom_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
bloom.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
build_version.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
cache_bench.cc
Introduce ClockCache
2016-08-19 12:28:19 -07:00
cache_test.cc
Not insert into block cache if cache is full and not holding handle
2016-08-23 13:53:49 -07:00
channel.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
clock_cache.cc
Not insert into block cache if cache is full and not holding handle
2016-08-23 13:53:49 -07:00
clock_cache.h
Introduce ClockCache
2016-08-19 12:28:19 -07:00
coding_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
coding.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
coding.h
TableBuilder / TableReader support for range deletion
2016-08-19 15:10:31 -07:00
compaction_job_stats_impl.cc
Single Delete Mismatch and Fallthrough statistics
2016-08-16 08:21:43 -07:00
comparator.cc
Improve BytewiseComparatorImpl::FindShortestSeparator
2016-04-25 23:02:14 -07:00
compression.h
Fixed output size and removed unneeded loop
2016-07-13 09:10:06 -07:00
concurrent_arena.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
concurrent_arena.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
crc32c_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
crc32c.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
crc32c.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
delete_scheduler_test.cc
Fix name conflict in delete_shceduler_test and db_sst_test
2016-06-10 15:39:17 -07:00
delete_scheduler.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
delete_scheduler.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
dynamic_bloom_test.cc
Fix clang analyzer errors
2016-07-08 17:50:51 -07:00
dynamic_bloom.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
dynamic_bloom.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
env_basic_test.cc
TableBuilder / TableReader support for range deletion
2016-08-19 15:10:31 -07:00
env_chroot.cc
env_chroot.cc: FreeBSD likes stdlib.h for realpaht() and friends (#1154)
2016-06-05 17:22:55 -07:00
env_chroot.h
Introduce chroot Env
2016-05-06 17:42:50 -07:00
env_hdfs.cc
Eliminate use of 'using namespace std'. Also remove a number of ADL references to std functions.
2016-05-20 07:42:18 -07:00
env_posix.cc
Expose ThreadPool under include/rocksdb/threadpool.h
2016-08-26 10:41:35 -07:00
env_test.cc
Fix Windows build break
2016-06-01 18:07:59 -07:00
env.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
event_logger_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
event_logger.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
event_logger.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
fault_injection_test_env.cc
[rocksdb] Recovery path sequence miscount fix
2016-05-10 14:06:07 -07:00
fault_injection_test_env.h
[rocksdb] Recovery path sequence miscount fix
2016-05-10 14:06:07 -07:00
file_reader_writer_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
file_reader_writer.cc
Cleanup unused variable pending_fsync_.
2016-08-05 10:31:41 -07:00
file_reader_writer.h
Cleanup unused variable pending_fsync_.
2016-08-05 10:31:41 -07:00
file_util.cc
Forge current file for checkpoint
2016-03-17 10:07:21 -07:00
file_util.h
Forge current file for checkpoint
2016-03-17 10:07:21 -07:00
filelock_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
filter_policy.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
hash.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
hash.h
Refactor cache.cc
2016-07-15 10:41:36 -07:00
heap_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
heap.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
histogram_test.cc
Fix Build Error
2016-03-11 22:56:25 -08:00
histogram_windowing.cc
Fix in HistogramWindowingImpl
2016-03-17 14:28:41 -07:00
histogram_windowing.h
Histogram Concurrency Improvement and Time-Windowing Support
2016-03-11 16:54:25 -08:00
histogram.cc
Fix FB internal CI build failure
2016-03-15 11:38:15 -07:00
histogram.h
Histogram Concurrency Improvement and Time-Windowing Support
2016-03-11 16:54:25 -08:00
instrumented_mutex.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
instrumented_mutex.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
io_posix.cc
Persistent Read Cache (part 6) Block Cache Tier Implementation
2016-08-01 14:15:14 -07:00
io_posix.h
Direct IO capability for RocksDB
2016-05-23 12:27:27 -07:00
iostats_context_imp.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
iostats_context_test.cc
IOStatsContext::ToString() add option to exclude zero counters
2016-02-23 10:26:24 -08:00
iostats_context.cc
IOStatsContext::ToString() add option to exclude zero counters
2016-02-23 10:26:24 -08:00
kv_map.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
log_buffer.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
log_buffer.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
log_write_bench.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
logging.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
logging.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
lru_cache_test.cc
LRU cache mid-point insertion
2016-08-19 16:43:31 -07:00
lru_cache.cc
Not insert into block cache if cache is full and not holding handle
2016-08-23 13:53:49 -07:00
lru_cache.h
Option to cache index/filter blocks with priority
2016-08-23 13:44:13 -07:00
memenv.cc
In-memory environment read beyond EOF
2016-05-27 12:10:26 -07:00
mock_env_test.cc
Create env_basic_test [pluggable Env part 2]
2016-06-03 15:13:03 -07:00
mock_env.cc
In-memory environment read beyond EOF
2016-05-27 12:10:26 -07:00
mock_env.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
murmurhash.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
murmurhash.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
mutable_cf_options.cc
Change options memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size and cover huge page to memtable too
2016-07-26 18:15:11 -07:00
mutable_cf_options.h
Change options memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size and cover huge page to memtable too
2016-07-26 18:15:11 -07:00
mutexlock.h
Persistent Read Cache (6) Persistent cache tier implentation - File layout
2016-07-19 12:01:46 -07:00
options_helper.cc
Small nits (#1280)
2016-08-17 00:42:35 -07:00
options_helper.h
Introduce Read amplification bitmap (read amp statistics)
2016-08-26 18:55:58 -07:00
options_parser.cc
Fix clang analyzer errors
2016-07-08 17:50:51 -07:00
options_parser.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
options_sanity_check.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
options_sanity_check.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
options_settable_test.cc
Introduce Read amplification bitmap (read amp statistics)
2016-08-26 18:55:58 -07:00
options_test.cc
Improve comment and bug fix for GetOptionsFromMap functions in convenience.h
2016-08-11 14:54:29 -07:00
options.cc
Change options memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size and cover huge page to memtable too
2016-07-26 18:15:11 -07:00
perf_context_imp.h
fix ios build error
2016-02-17 20:22:40 +08:00
perf_context.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
perf_level_imp.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
perf_level.cc
Assert boundary checks for SetPerfLevel()
2016-06-01 09:07:09 -07:00
perf_step_timer.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
posix_logger.h
Cleanup auto-roll logger flush-while-rolling test
2016-07-07 11:35:40 -07:00
random.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
random.h
Fixes warnings and ensure correct int behavior on 32-bit platforms.
2016-03-16 22:57:57 +01:00
rate_limiter_test.cc
Small nits (#1280)
2016-08-17 00:42:35 -07:00
rate_limiter.cc
fix rate limiter to avoid starvation
2016-07-01 00:16:29 -07:00
rate_limiter.h
Handle overflow case of rate limiter's paramters
2016-05-27 16:15:28 -07:00
sharded_cache.cc
LRU cache mid-point insertion
2016-08-19 16:43:31 -07:00
sharded_cache.h
LRU cache mid-point insertion
2016-08-19 16:43:31 -07:00
slice_transform_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
slice.cc
Merge db/slice.cc into util/slice.cc
2016-06-10 16:37:36 -07:00
sst_file_manager_impl.cc
Fix SstFileManager uninitialized data member
2016-02-18 11:25:19 -08:00
sst_file_manager_impl.h
Introduce SstFileManager::SetMaxAllowedSpaceUsage() to cap disk space usage
2016-02-17 15:20:23 -08:00
statistics_test.cc
Fix Statistics TickersNameMap miss match with Tickers enum
2016-07-25 16:05:50 -07:00
statistics.cc
Relax consistency for thread-local ticker stats
2016-08-25 10:42:26 -07:00
statistics.h
Thread-specific ticker statistics
2016-08-24 15:42:31 -07:00
status_message.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
status.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
stderr_logger.h
Stderr info logger
2016-04-01 11:06:06 -07:00
stop_watch.h
Use StopWatch to do statistic job in db_impl_add_file.cc
2016-08-02 14:53:29 -07:00
string_util.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
string_util.h
FreeBSD does not have std::to_string (#1190)
2016-06-29 07:35:17 -07:00
sync_point.cc
Make SyncPoint return immediately when disabled
2016-08-16 06:19:46 -07:00
sync_point.h
Add a new feature to enforce a sync point only active on a thread
2016-07-07 11:29:14 -07:00
testharness.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
testharness.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
testutil.cc
Change options memtable_prefix_bloom_huge_page_tlb_size => memtable_huge_page_size and cover huge page to memtable too
2016-07-26 18:15:11 -07:00
testutil.h
Introduce FullMergeV2 (eliminate memcpy from merge operators)
2016-07-20 09:49:03 -07:00
thread_list_test.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_local_test.cc
Fix lambda expression for clang/windows
2016-08-23 13:34:56 -07:00
thread_local.cc
Fold function for thread-local data
2016-08-22 15:37:39 -07:00
thread_local.h
Fold function for thread-local data
2016-08-22 15:37:39 -07:00
thread_operation.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_impl.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_updater_debug.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_updater.cc
Use pure if-then check instead of assert in EraseColumnFamilyInfo
2016-03-04 16:03:31 -08:00
thread_status_updater.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_util_debug.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_util.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
thread_status_util.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
threadpool_imp.cc
Expose ThreadPool under include/rocksdb/threadpool.h
2016-08-26 10:41:35 -07:00
threadpool_imp.h
Expose ThreadPool under include/rocksdb/threadpool.h
2016-08-26 10:41:35 -07:00
transaction_test_util.cc
Add multithreaded transaction test
2016-03-11 15:16:52 -08:00
transaction_test_util.h
Fix AppVeyor build error
2016-03-15 10:57:33 -07:00
xfunc.cc
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
xfunc.h
Updated all copyright headers to the new format.
2016-02-09 15:12:00 -08:00
xxhash.cc
Enable MS Warning C4804 : unsafe use of type 'bool' in operation
2015-11-18 16:23:19 -08:00
xxhash.h
Prevent xxhash symbols from polluting global namespace
2015-03-12 12:07:10 -07:00