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197034e4c3
rocksdb/db
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Dhruba Borthakur 197034e4c3 An iterator may automatically invoke reseeks. 
Summary:
An iterator invokes reseek if the number of sequential skips over the
same userkey exceeds a configured number. This makes iter->Next()
faster (bacause of fewer key compares) if a large number of
adjacent internal keys in a table (sst or memtable) have the
same userkey.

Test Plan: Unit test DBTest.IterReseek.

Reviewers: emayanke, haobo, xjin

Reviewed By: xjin

CC: leveldb, xjin

Differential Revision: https://reviews.facebook.net/D11865
2013-09-06 11:50:53 -07:00
..
.nfs00000000066c9ebb00000002 Enhance db_bench 2013-03-14 16:00:23 -07:00
builder.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
builder.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
c_test.c Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
c.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
corruption_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_bench.cc Internal/user key bug fix. 2013-08-23 14:49:57 -07:00
db_filesnapshot.cc Return pathname relative to db dir in LogFile and cleanup AppendSortedWalsOfType 2013-09-04 13:44:43 -07:00
db_impl_readonly.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_impl_readonly.h New ldb command to convert compaction style 2013-09-04 13:13:08 -07:00
db_impl.cc Return pathname relative to db dir in LogFile and cleanup AppendSortedWalsOfType 2013-09-04 13:44:43 -07:00
db_impl.h New ldb command to convert compaction style 2013-09-04 13:13:08 -07:00
db_iter.cc An iterator may automatically invoke reseeks. 2013-09-06 11:50:53 -07:00
db_iter.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_statistics.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_stats_logger.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
db_test.cc An iterator may automatically invoke reseeks. 2013-09-06 11:50:53 -07:00
dbformat_test.cc Fix all warnings generated by -Wall option to the compiler. 2012-11-06 14:07:31 -08:00
dbformat.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
dbformat.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
deletefile_test.cc Fix build caused by DeleteFile not tolerating / at the beginning 2013-09-01 17:59:13 -07:00
filename_test.cc Added meta-database support. 2012-12-17 11:26:59 -08:00
filename.cc Return pathname relative to db dir in LogFile and cleanup AppendSortedWalsOfType 2013-09-04 13:44:43 -07:00
filename.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_format.h Fixed sign-comparison in rocksdb code-base and fixed Makefile 2013-03-19 14:35:23 -07:00
log_reader.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_reader.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_writer.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
log_writer.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtable.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtable.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtablelist.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
memtablelist.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_helper.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_helper.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_operator.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
merge_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
perf_context_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
perf_context.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
prefix_filter_iterator.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
repair.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
skiplist_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
skiplist.h Make arena block size configurable 2013-07-31 12:42:23 -07:00
snapshot.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
table_cache.cc Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
table_cache.h Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
transaction_log_impl.cc API for getting archived log files 2013-08-19 13:37:04 -07:00
transaction_log_impl.h Return pathname relative to db dir in LogFile and cleanup AppendSortedWalsOfType 2013-09-04 13:44:43 -07:00
version_edit_test.cc Reduce write amplification by merging files in L0 back into L0 2013-06-30 20:07:04 -07:00
version_edit.cc Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_edit.h Merge remote-tracking branch 'origin' into performance 2013-08-12 09:58:50 -07:00
version_set_reduce_num_levels.cc Fix valgrind errors in rocksdb tests: auto_roll_logger_test, reduce_levels_test 2013-03-12 16:03:16 -07:00
version_set_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
version_set.cc Fix build caused by DeleteFile not tolerating / at the beginning 2013-09-01 17:59:13 -07:00
version_set.h Introduced a new flag non_blocking_io in ReadOptions. 2013-08-28 10:49:14 -07:00
write_batch_internal.h Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
write_batch_test.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00
write_batch.cc Replace include/leveldb with include/rocksdb. 2013-08-23 10:51:00 -07:00