Siying Dong 18df47b79a Avoid malloc in NotFound key status if no message is given. ...

Summary:
In some places we have NotFound status created with empty message, but it doesn't avoid a malloc. With this patch, the malloc is avoided for that case.

The motivation of it is that I found in db_bench readrandom test when all keys are not existing, about 4% of the total running time is spent on malloc of Status, plus a similar amount of CPU spent on free of them, which is not necessary.

Test Plan: make all check

Reviewers: dhruba, haobo, igor

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14691

2013-12-26 16:23:10 -08:00

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arena_impl.cc

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arena_impl.h

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autovector_test.cc

Fix all the comparison issue in fb dev servers

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

autovector.h

Fix all the comparison issue in fb dev servers

2013-12-26 16:13:49 -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

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bloom.cc

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build_version.h

Fixed typos

2013-11-16 11:21:34 +00:00

cache_test.cc

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cache.cc

[RocksDB perf] Cache speedup

2013-12-11 08:33:29 -08:00

coding_test.cc

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coding.cc

[RocksDB] BackupableDB

2013-12-09 14:06:52 -08:00

coding.h

[RocksDB] BackupableDB

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comparator.cc

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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

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env.cc

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hash_skiplist_rep.h

Killing Transform Rep

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hash.cc

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hash.h

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histogram_test.cc

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histogram.cc

Quick fix for a string format

2013-11-12 21:22:32 -08:00

histogram.h

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ldb_cmd_execute_result.h

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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

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mutexlock.h

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options.cc

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2013-12-03 14:28:48 -08:00

perf_context_imp.h

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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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stack_trace.h

Print stack trace on assertion failure

2013-12-06 17:11:09 -08:00

statistics_imp.h

[RocksDB] Use raw pointer instead of shared pointer when passing Statistics object internally

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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

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stop_watch.h

[RocksDB] Use raw pointer instead of shared pointer when passing Statistics object internally

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testharness.h

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vectorrep.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