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rocksdb/util
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Simon Liu a2de8e52bb optimized the performance of autovector::emplace_back. (#4606) 
Summary:
It called the autovector::push_back simply in autovector::emplace_back.
This was not efficient, and then optimazed this function through the
perfect forwarding.

This was the src and result of the benchmark(using the google'benchmark library, the type of elem in
autovector was std::string, and call emplace_back with the "char *" type):

https://gist.github.com/monadbobo/93448b89a42737b08cbada81de75c5cd

PS: The benchmark's result of  previous PR was not accurate, and so I update the test case and result.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4606

Differential Revision: D13046813

Pulled By: sagar0

fbshipit-source-id: 19cde1bcadafe899aa454b703acb35737a1cc02d
2018-11-13 14:39:03 -08:00
..
aligned_buffer.h Fix Copying of data between buffers in FilePrefetchBuffer (#4100) 2018-07-11 12:28:13 -07:00
allocator.h Change RocksDB License 2017-07-15 16:11:23 -07:00
arena.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
arena.h arena: derive alignment unit from std::max_align_t 2017-10-17 11:13:19 -07:00
arena_test.cc arena: derive alignment unit from std::max_align_t 2017-10-17 11:13:19 -07:00
auto_roll_logger.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
auto_roll_logger.h Fix the Logger::Close() and DBImpl::Close() design pattern 2018-02-23 13:57:26 -08:00
auto_roll_logger_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
autovector.h optimized the performance of autovector::emplace_back. (#4606) 2018-11-13 14:39:03 -08:00
autovector_test.cc fix memory leak in two_level_iterator 2018-04-15 17:26:26 -07:00
bloom.cc Improve FullFilterBitsReader::HashMayMatch's doc (#4202) 2018-08-06 11:13:18 -07:00
bloom_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
build_version.cc.in Makefile: generate util/build_version.cc from .in file (#1384) 2016-10-25 11:31:39 -07:00
build_version.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cast_util.h Add a missing "once" in .h 2017-07-31 12:12:03 -07:00
channel.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
coding.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
coding.h Add path to WritableFileWriter. (#4039) 2018-08-23 10:12:58 -07:00
coding_test.cc Coding.h: Added Fixed16 support (#4142) 2018-07-16 23:43:41 -07:00
compaction_job_stats_impl.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
comparator.cc Improve point-lookup performance using a data block hash index (#4174) 2018-08-15 14:30:03 -07:00
compression.h s/CacheAllocator/MemoryAllocator/g (#4590) 2018-10-26 14:30:30 -07:00
compression_context_cache.cc run make format for PR 3838 (#3954) 2018-06-05 12:58:02 -07:00
compression_context_cache.h run make format for PR 3838 (#3954) 2018-06-05 12:58:02 -07:00
concurrent_arena.cc Cap concurrent arena's shard block size to 128KB (#4147) 2018-07-18 10:43:54 -07:00
concurrent_arena.h util: Fix coverity issues 2017-11-03 14:42:08 -07:00
core_local.h Change RocksDB License 2017-07-15 16:11:23 -07:00
crc32c.cc Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
crc32c.h Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc.c Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
crc32c_ppc_asm.S Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc_constants.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
crc32c_test.cc Build and tests fixes for Solaris Sparc (#4000) 2018-06-15 12:42:53 -07:00
delete_scheduler.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
delete_scheduler.h In delete scheduler, before ftruncate file for slow delete, check whether there is other hard links (#4093) 2018-07-09 15:28:12 -07:00
delete_scheduler_test.cc Auto recovery from out of space errors (#4164) 2018-09-15 13:43:04 -07:00
duplicate_detector.h Improve db_stress with transactions 2018-04-18 16:32:35 -07:00
dynamic_bloom.cc Use nullptr instead of NULL / 0 more consistently. 2018-03-07 12:42:12 -08:00
dynamic_bloom.h Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
dynamic_bloom_test.cc Two code changes to make "clang analyze" happy (#4292) 2018-08-20 17:43:41 -07:00
event_logger.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
event_logger.h Change RocksDB License 2017-07-15 16:11:23 -07:00
event_logger_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
fault_injection_test_env.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
fault_injection_test_env.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
file_reader_writer.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
file_reader_writer.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
file_reader_writer_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
file_util.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
file_util.h Sync CURRENT file during checkpoint (#4322) 2018-08-28 12:43:18 -07:00
filelock_test.cc Per-thread unique test db names (#4135) 2018-07-13 17:27:39 -07:00
filename.cc Store the return value of Fsync for check 2018-09-14 13:29:56 -07:00
filename.h BlobDB: GetLiveFiles and GetLiveFilesMetadata return relative path (#4326) 2018-08-31 12:12:49 -07:00
filter_policy.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
gflags_compat.h fix gflags namespace 2017-12-01 10:42:05 -08:00
hash.cc Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
hash.h Change RocksDB License 2017-07-15 16:11:23 -07:00
hash_map.h Change RocksDB License 2017-07-15 16:11:23 -07:00
hash_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
heap.h Change RocksDB License 2017-07-15 16:11:23 -07:00
heap_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
jemalloc_nodump_allocator.cc port folly::JemallocNodumpAllocator (#4534) 2018-10-26 17:29:18 -07:00
jemalloc_nodump_allocator.h port folly::JemallocNodumpAllocator (#4534) 2018-10-26 17:29:18 -07:00
kv_map.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_buffer.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
log_buffer.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_write_bench.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
logging.h FIX #3820: shorter file name in logs (#4616) 2018-11-01 16:19:01 -07:00
memory_allocator.h s/CacheAllocator/MemoryAllocator/g (#4590) 2018-10-26 14:30:30 -07:00
memory_usage.h Change RocksDB License 2017-07-15 16:11:23 -07:00
mock_time_env.h Fix RepeatableThreadTest::MockEnvTest hang (#4560) 2018-10-21 20:17:18 -07:00
murmurhash.cc Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
murmurhash.h Change RocksDB License 2017-07-15 16:11:23 -07:00
mutexlock.h Change RocksDB License 2017-07-15 16:11:23 -07:00
ppc-opcode.h Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
random.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
random.h Change RocksDB License 2017-07-15 16:11:23 -07:00
rate_limiter.cc rate limit auto-tuning 2017-10-04 19:15:01 -07:00
rate_limiter.h rate limit auto-tuning 2017-10-04 19:15:01 -07:00
rate_limiter_test.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
repeatable_thread.h Fix RepeatableThreadTest::MockEnvTest hang (#4560) 2018-10-21 20:17:18 -07:00
repeatable_thread_test.cc Utility to run task periodically in a thread (#4423) 2018-09-27 15:28:00 -07:00
set_comparator.h WritePrepared Txn: Move DuplicateDetector to util 2018-03-05 23:57:12 -08:00
slice.cc use user_key and iterate_upper_bound to determine compatibility of bloom filters (#3899) 2018-06-26 15:57:26 -07:00
slice_transform_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
sst_file_manager_impl.cc Fix regression test failures introduced by PR #4164 (#4375) 2018-09-17 13:14:07 -07:00
sst_file_manager_impl.h Fix regression test failures introduced by PR #4164 (#4375) 2018-09-17 13:14:07 -07:00
status.cc move static msgs out of Status class (#4144) 2018-07-23 15:44:16 -07:00
stderr_logger.h Change RocksDB License 2017-07-15 16:11:23 -07:00
stop_watch.h Exclude time waiting for rate limiter from rocksdb.sst.read.micros (#4102) 2018-07-13 18:44:14 -07:00
string_util.cc Several small "fixes" 2018-02-15 16:57:37 -08:00
string_util.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sync_point.cc Add read retry support to log reader (#4394) 2018-10-19 11:53:00 -07:00
sync_point.h Fix singleton destruction order of PosixEnv and SyncPoint (#3951) 2018-06-04 15:58:46 -07:00
sync_point_impl.cc Avoid acquiring SyncPoint mutex when it is disabled (#3991) 2018-06-13 13:13:18 -07:00
sync_point_impl.h Avoid acquiring SyncPoint mutex when it is disabled (#3991) 2018-06-13 13:13:18 -07:00
testharness.cc Per-thread unique test db names (#4135) 2018-07-13 17:27:39 -07:00
testharness.h Per-thread unique test db names (#4135) 2018-07-13 17:27:39 -07:00
testutil.cc Backup engine support for direct I/O reads (#4640) 2018-11-13 11:17:25 -08:00
testutil.h Backup engine support for direct I/O reads (#4640) 2018-11-13 11:17:25 -08:00
thread_list_test.cc Use nullptr instead of NULL / 0 more consistently. 2018-03-07 12:42:12 -08:00
thread_local.cc Enable building of ARM32 (#4349) 2018-10-09 16:58:25 -07:00
thread_local.h Provide a way to override windows memory allocator with jemalloc for ZSTD 2018-06-04 12:12:48 -07:00
thread_local_test.cc Comment out unused variables 2018-03-05 13:13:41 -08:00
thread_operation.h Add inline comments to flush job (#4464) 2018-10-05 15:41:17 -07:00
threadpool_imp.cc Small issues (#4564) 2018-10-23 10:35:57 -07:00
threadpool_imp.h Support lowering CPU priority of background threads 2018-04-24 08:41:51 -07:00
timer_queue.h Change RocksDB License 2017-07-15 16:11:23 -07:00
timer_queue_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
trace_replay.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
trace_replay.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
transaction_test_util.cc C++17 support (#4482) 2018-10-11 10:50:04 -07:00
transaction_test_util.h WritePrepared Txn: stress test 2017-12-06 09:42:28 -08:00
util.h Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
vector_iterator.h Use only "local" range tombstones during Get (#4449) 2018-10-24 12:31:12 -07:00
xxhash.cc xxhash 64 support 2018-11-01 15:44:06 -07:00
xxhash.h Move #include outside of namespace (#4629) 2018-11-06 17:18:28 -08:00