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cd535c2280dea4c45b5138bce27870ff1c633d11
rippled/util
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Kai Liu cd535c2280 Optimize MayContainHash() 
Summary:
In latest leaf's, MayContainHash() consistently consumes 5%~7% CPU usage.

I checked the code and did an experiment with/without inlining this method.

In release mode, with `1024 * 1024 * 256` bits and `1024 * 512` entries, both call 2^30 MayContainHash() with distinctive parameters.

As the result showed, this patch reduced the running time from 9.127 sec to 7.891 sec.

Test Plan: make check

Reviewers: sdong, haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D15177
2014-01-14 22:03:57 -08:00
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arena_impl.cc
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2013-10-16 17:48:41 -07:00
arena_impl.h
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2013-10-16 17:48:41 -07:00
arena_test.cc
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2013-10-16 17:48:41 -07:00
auto_roll_logger_test.cc
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2013-10-16 17:48:41 -07:00
auto_roll_logger.cc
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2013-10-16 17:48:41 -07:00
auto_roll_logger.h
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2013-10-16 17:48:41 -07:00
autovector_test.cc
Fix issue #57
2014-01-06 11:11:19 -08:00
autovector.h
Replace vector with autovector
2014-01-02 16:43:35 -08:00
bit_set.h
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2013-10-16 17:48:41 -07:00
blob_store_test.cc
Move the compiler back to 4.8.1 + more small fixes
2013-11-18 11:40:16 -08:00
blob_store.cc
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
blob_store.h
Implement max_size in BlobStore
2013-10-23 14:38:52 -07:00
bloom_test.cc
[RocksDB] [Performance Branch] Added dynamic bloom, to be used for memable non-existing key filtering
2013-12-11 00:15:14 -08:00
bloom.cc
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2013-10-16 17:48:41 -07:00
build_version.h
Fixed typos
2013-11-16 11:21:34 +00:00
cache_test.cc
[RocksDB] [Performance Branch] Trivia build fix
2013-12-13 14:21:59 -08:00
cache.cc
Replace vector with autovector
2014-01-02 16:43:35 -08:00
coding_test.cc
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2013-10-16 17:48:41 -07:00
coding.cc
[RocksDB] BackupableDB
2013-12-09 14:06:52 -08:00
coding.h
[RocksDB] BackupableDB
2013-12-09 14:06:52 -08:00
comparator.cc
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2013-10-16 17:48:41 -07:00
crc32c_test.cc
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2013-10-16 17:48:41 -07:00
crc32c.cc
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2013-10-16 17:48:41 -07:00
crc32c.h
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2013-10-16 17:48:41 -07:00
dynamic_bloom_test.cc
[RocksDB] [Performance Branch] Added dynamic bloom, to be used for memable non-existing key filtering
2013-12-11 00:15:14 -08:00
dynamic_bloom.cc
Optimize MayContainHash()
2014-01-14 22:03:57 -08:00
dynamic_bloom.h
Optimize MayContainHash()
2014-01-14 22:03:57 -08:00
env_hdfs.cc
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2013-10-16 17:48:41 -07:00
env_posix.cc
Merge branch 'master' into performance
2013-12-27 12:23:17 -08:00
env_test.cc
make util/env_posix.cc work under mac
2013-11-16 23:44:39 -08:00
env.cc
Flush the log outside of lock
2013-11-07 11:31:56 -08:00
filelock_test.cc
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2013-10-16 17:48:41 -07:00
filter_policy.cc
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2013-10-16 17:48:41 -07:00
hash_linklist_rep.cc
[Performance Branch] Fix memory leak in HashLinkListRep.GetIterator()
2014-01-10 12:12:28 -08:00
hash_linklist_rep.h
[Performance Branch] A Hashed Linked List Based Mem Table
2014-01-09 16:19:11 -08:00
hash_skiplist_rep.cc
[RocksDB] [Performance Branch] Added dynamic bloom, to be used for memable non-existing key filtering
2013-12-11 00:15:14 -08:00
hash_skiplist_rep.h
Merge branch 'master' into performance
2013-12-06 14:15:42 -08:00
hash.cc
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2013-10-16 17:48:41 -07:00
hash.h
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2013-10-16 17:48:41 -07:00
histogram_test.cc
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2013-10-16 17:48:41 -07:00
histogram.cc
Quick fix for a string format
2013-11-12 21:22:32 -08:00
histogram.h
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2013-10-16 17:48:41 -07:00
ldb_cmd_execute_result.h
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2013-10-16 17:48:41 -07:00
ldb_cmd.cc
[Log dumper broken when merge operator is in log]
2013-12-04 16:22:54 -08:00
ldb_cmd.h
Task #3071144 Enhance ldb (db dump tool for leveldb) to report row counters for each row type
2013-11-01 13:59:14 -07:00
ldb_tool.cc
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2013-10-16 17:48:41 -07:00
logging.cc
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2013-10-16 17:48:41 -07:00
logging.h
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2013-10-16 17:48:41 -07:00
manual_compaction_test.cc
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2013-10-16 17:48:41 -07:00
murmurhash.cc
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2013-10-16 17:48:41 -07:00
murmurhash.h
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2013-10-16 17:48:41 -07:00
mutexlock.h
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2013-10-16 17:48:41 -07:00
options.cc
Add read/modify/write functionality to Put() api
2014-01-14 07:55:16 -08:00
perf_context_imp.h
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2013-10-16 17:48:41 -07:00
perf_context.cc
Revert "Allow users to profile a query and see bottleneck of the query"
2013-11-21 17:40:39 -08:00
posix_logger.h
only try to use fallocate if it's actually present on the system
2013-12-10 22:34:19 -08:00
random.h
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2013-10-16 17:48:41 -07:00
signal_test.cc
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2013-10-16 17:48:41 -07:00
skiplistrep.cc
[Only for Performance Branch] A Hacky patch to lazily generate memtable key for prefix-hashed memtables.
2013-11-20 20:49:23 -08:00
slice.cc
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2013-10-16 17:48:41 -07:00
stack_trace.h
Print stack trace on assertion failure
2013-12-06 17:11:09 -08:00
statistics_imp.h
Refine the statistics
2013-12-06 16:51:35 -08:00
statistics.cc
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2013-10-16 17:48:41 -07:00
stats_logger.h
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2013-10-16 17:48:41 -07:00
status.cc
Avoid malloc in NotFound key status if no message is given.
2013-12-26 16:23:10 -08:00
stl_wrappers.h
Killing Transform Rep
2013-12-03 12:42:15 -08:00
stop_watch.h
StopWatch not to get time if it is created for statistics and it is disabled
2014-01-09 17:39:48 -08:00
string_util.cc
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2013-10-16 17:48:41 -07:00
string_util.h
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2013-10-16 17:48:41 -07:00
testharness.cc
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2013-10-16 17:48:41 -07:00
testharness.h
Print stack trace on assertion failure
2013-12-06 17:11:09 -08:00
testutil.cc
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2013-10-16 17:48:41 -07:00
testutil.h
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2013-10-16 17:48:41 -07:00
vectorrep.cc
[Only for Performance Branch] A Hacky patch to lazily generate memtable key for prefix-hashed memtables.
2013-11-20 20:49:23 -08:00