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rocksdb/util
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Mark Callaghan 33323f2111 Remove use of mmap for random reads 
Summary:
Reads via mmap on concurrent workloads are much slower than pread.
For example on a 24-core server with storage that can do 100k IOPS or more
I can get no more than 10k IOPS with mmap reads and 32+ threads.

Test Plan: db_bench benchmarks

Reviewers: dhruba, heyongqiang

Reviewed By: heyongqiang

Differential Revision: https://reviews.facebook.net/D5433
2012-09-14 16:43:50 -07:00
..
arena_test.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
arena.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
arena.h
A number of fixes:
2011-10-31 17:22:06 +00:00
bloom_test.cc
Added bloom filter support.
2012-04-17 08:36:46 -07:00
bloom.cc
bits_per_key is already configurable. It defines how many bloom bits will be used for every key in the database.
2012-07-09 23:06:07 -07:00
build_version.h
Record the version of the source repository that was used to build the leveldb library.
2012-08-21 14:47:15 -07:00
cache_test.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
cache.cc
The sharding of the block cache is limited to 2*20 pieces.
2012-08-29 12:17:59 -07:00
coding_test.cc
merge 1.5
2012-08-28 11:43:33 -07:00
coding.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
coding.h
A number of fixes:
2011-10-31 17:22:06 +00:00
comparator.cc
merge 1.5
2012-08-28 11:43:33 -07:00
crc32c_test.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
crc32c.cc
SSE4 optimization
2012-05-15 10:10:01 -07:00
crc32c.h
A number of fixes:
2011-10-31 17:22:06 +00:00
env_hdfs.cc
Clean up compiler warnings generated by -Wall option.
2012-08-29 14:24:51 -07:00
env_posix.cc
Remove use of mmap for random reads
2012-09-14 16:43:50 -07:00
env_test.cc
fixed issues 66 (leaking files on disk error) and 68 (no sync of CURRENT file)
2012-01-25 14:56:52 -08:00
env.cc
fixed issues 66 (leaking files on disk error) and 68 (no sync of CURRENT file)
2012-01-25 14:56:52 -08:00
filelock_test.cc
Prevent concurrent multiple opens of leveldb database.
2012-08-20 23:55:04 -07:00
filter_policy.cc
Added bloom filter support.
2012-04-17 08:36:46 -07:00
hash.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
hash.h
reverting disastrous MOE commit, returning to r21
2011-04-19 23:11:15 +00:00
histogram.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
histogram.h
A number of fixes:
2011-10-31 17:22:06 +00:00
logging.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
logging.h
A number of fixes:
2011-10-31 17:22:06 +00:00
mutexlock.h
A number of fixes:
2011-10-31 17:22:06 +00:00
options.cc
put log in a seperate dir
2012-09-06 17:52:08 -07:00
posix_logger.h
A number of fixes:
2011-10-31 17:22:06 +00:00
random.h
A number of fixes:
2011-10-31 17:22:06 +00:00
stats_logger.h
Clean up compiler warnings generated by -Wall option.
2012-08-29 14:24:51 -07:00
status.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
testharness.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
testharness.h
A number of fixes:
2011-10-31 17:22:06 +00:00
testutil.cc
A number of fixes:
2011-10-31 17:22:06 +00:00
testutil.h
A number of fixes:
2011-10-31 17:22:06 +00:00