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aa0ef6602d
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Siying Dong aa0ef6602d [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 
Summary:
In some use cases, table readers for all live files should always be cached. In that case, there will be an opportunity to avoid the table cache look-up while Get() and NewIterator().

We define options.max_open_files = -1 to be the mode that table readers for live files will always be kept. In that mode, table readers are cached in FileMetaData (with a reference count hold in table cache). So that when executing table_cache.Get() and table_cache.newInterator(), LRU cache checking can be by-passed, to reduce latency.

Test Plan: add a test case in db_test

Reviewers: haobo, kailiu

Reviewed By: haobo

CC: dhruba, igor, leveldb

Differential Revision: https://reviews.facebook.net/D15039
2014-01-10 15:57:49 -08:00
..
builder.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
builder.h Fixing the warning messages captured under mac os # Consider using git commit -m 'One line title' && arc diff. # You will save time by running lint and unit in the background. 2013-11-12 20:05:28 -08:00
c_test.c Rename leveldb to rocksdb in C api 2013-12-10 10:48:35 +02:00
c.cc C bindings: add a bunch of the newer options 2013-12-15 13:47:06 -08:00
corruption_test.cc Make "Table" pluggable 2013-10-28 17:54:09 -07:00
db_bench.cc Merge branch 'master' into performance 2013-12-27 12:23:17 -08:00
db_filesnapshot.cc Support multi-threaded DisableFileDeletions() and EnableFileDeletions() 2014-01-02 03:33:42 -08:00
db_impl_readonly.cc Introduce MergeContext to Lazily Initialize merge operand list 2013-12-11 11:37:28 -08:00
db_impl_readonly.h Support multi-threaded DisableFileDeletions() and EnableFileDeletions() 2014-01-02 03:33:42 -08:00
db_impl.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
db_impl.h Merge branch 'master' into performance 2014-01-07 11:04:21 -08:00
db_iter.cc Merge branch 'master' into performance 2013-12-06 14:15:42 -08:00
db_iter.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
db_statistics.cc Fix #26 by putting the implementation of CreateDBStatistics() to a cc file 2013-12-05 22:29:03 -08:00
db_statistics.h Fix #26 by putting the implementation of CreateDBStatistics() to a cc file 2013-12-05 22:29:03 -08:00
db_stats_logger.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
db_test.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
dbformat_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
dbformat.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
dbformat.h Make "Table" pluggable 2013-10-28 17:54:09 -07:00
deletefile_test.cc Start DeleteFileTest with clean plate 2013-11-15 16:30:23 -08:00
filename_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
filename.cc Unify DeleteFile and DeleteWalFiles 2013-10-25 08:32:14 -07:00
filename.h Unify DeleteFile and DeleteWalFiles 2013-10-25 08:32:14 -07:00
log_format.h Some minor refactoring on the code 2014-01-02 16:32:31 -08:00
log_reader.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
log_reader.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
log_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
log_writer.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
log_writer.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
memtable_list.cc Replace vector with autovector 2014-01-02 16:43:35 -08:00
memtable_list.h Replace vector with autovector 2014-01-02 16:43:35 -08:00
memtable.cc Merge branch 'master' into performance 2013-12-27 12:23:17 -08:00
memtable.h Introduce MergeContext to Lazily Initialize merge operand list 2013-12-11 11:37:28 -08:00
merge_context.h Introduce MergeContext to Lazily Initialize merge operand list 2013-12-11 11:37:28 -08:00
merge_helper.cc [RocksDB] Use raw pointer instead of shared pointer when passing Statistics object internally 2013-11-25 10:38:15 -08:00
merge_helper.h [RocksDB] Use raw pointer instead of shared pointer when passing Statistics object internally 2013-11-25 10:38:15 -08:00
merge_operator.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
merge_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
perf_context_test.cc Merge branch 'master' into performance 2013-12-06 14:15:42 -08:00
plain_table_db_test.cc Fix the valgrind issues 2014-01-03 11:48:31 -08:00
prefix_filter_iterator.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
prefix_test.cc [Performance Branch] Fix memory leak in HashLinkListRep.GetIterator() 2014-01-10 12:12:28 -08:00
repair.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
simple_table_db_test.cc Improve the "table stats" 2013-11-19 16:29:42 -08:00
skiplist_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
skiplist.h [RocksDB][Performance Branch] Make height and branching factor configurable for skiplist implementation 2013-11-26 21:59:36 -08:00
snapshot.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
table_cache.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
table_cache.h [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
table_properties_collector_test.cc Add the property block for the plain table 2013-12-13 17:18:14 -08:00
table_properties_collector.cc Extract metaindex block from block-based table 2013-12-05 16:34:16 -08:00
table_properties_collector.h Extract metaindex block from block-based table 2013-12-05 16:34:16 -08:00
transaction_log_impl.cc Fix the string format issue 2013-11-12 21:05:39 -08:00
transaction_log_impl.h Making the transaction log iterator more robust 2013-11-04 20:49:03 -08:00
version_edit_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
version_edit.cc Some minor refactoring on the code 2014-01-02 16:32:31 -08:00
version_edit.h [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
version_set_reduce_num_levels.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
version_set_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
version_set.cc [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
version_set.h [Performance Branch] If options.max_open_files set to be -1, cache table readers in FileMetadata for Get() and NewIterator() 2014-01-10 15:57:49 -08:00
write_batch_internal.h In-place updates for equal keys and similar sized values 2013-10-31 11:27:12 -07:00
write_batch_test.cc Get rid of some shared_ptrs 2013-12-03 11:17:58 -08:00
write_batch.cc [RocksDB] [Performance Branch] Revert previous patch. 2013-12-20 18:20:06 -08:00