Igor Canadi 4e91f27c3a Fix performance regression in statistics ...

Summary:
For some reason, D15099 caused a big performance regression: https://fburl.com/16059000

After digging a bit, I figured out that the reason was that std::atomic_uint_fast64_t was allocated in an array. When I switched from an array to vector, the QPS returned to the previous level. I'm not sure why this is happening, but this diff seems to fix the performance regression.

Test Plan: I ran the regression script, observed the performance going back to normal

Reviewers: tnovak, kailiu, haobo

Reviewed By: kailiu

CC: leveldb

Differential Revision: https://reviews.facebook.net/D15375

2014-01-23 16:11:55 -08:00

..

arena_impl.cc

Separate the aligned and unaligned memory allocation

2014-01-08 15:11:42 -08:00

arena_impl.h

Separate the aligned and unaligned memory allocation

2014-01-08 15:11:42 -08:00

arena_test.cc

fix compile warning

2014-01-10 17:56:35 +08:00

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

Fix all the comparison issue in fb dev servers

2013-12-26 16:13:49 -08:00

bit_set.h

Add appropriate LICENSE and Copyright message.

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

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2013-10-16 17:48:41 -07:00

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

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2013-10-16 17:48:41 -07:00

cache.cc

[RocksDB perf] Cache speedup

2013-12-11 08:33:29 -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

env_hdfs.cc

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2013-10-16 17:48:41 -07:00

env_posix.cc

oops - missed a spot

2013-12-11 11:18:00 -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_skiplist_rep.cc

Remove the unnecessary use of shared_ptr

2014-01-15 18:22:01 -08:00

hash_skiplist_rep.h

Remove the unnecessary use of shared_ptr

2014-01-15 18:22:01 -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

Statistics code cleanup

2014-01-17 12:46:06 -08:00

histogram.h

Statistics code cleanup

2014-01-17 12:46:06 -08:00

ldb_cmd_execute_result.h

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2013-10-16 17:48:41 -07:00

ldb_cmd.cc

Decrease reliance on VersionSet::NumberLevels()

2014-01-15 16:15:43 -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

Fix CompactRange to apply filter to every key

2014-01-14 16:19:09 -08:00

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

Improve RocksDB "get" performance by computing merge result in memtable

2014-01-10 17:33:56 -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

Remove the unnecessary use of shared_ptr

2014-01-15 18:22:01 -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.cc

Fix performance regression in statistics

2014-01-23 16:11:55 -08:00

statistics.h

Fix performance regression in statistics

2014-01-23 16:11:55 -08:00

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

Statistics code cleanup

2014-01-17 12:46:06 -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

Remove the unnecessary use of shared_ptr

2014-01-15 18:22:01 -08:00