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rocksdb/db
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Dhruba Borthakur c1006d4276 An configurable option to write data using write instead of mmap. 
Summary:
We have seen that reading data via the pread call (instead of
mmap) is much faster on Linux 2.6.x kernels. This patch makes
an equivalent option to switch off mmaps for the write path
as well.

db_bench --mmap_write=0 will use write() instead of mmap() to
write data to a file.

This change is backward compatible, the default
option is to continue using mmap for writing to a file.

Test Plan: "make check all"

Differential Revision: https://reviews.facebook.net/D5781
2012-10-03 17:08:13 -07:00
..
builder.cc Introduce a new method Env->Fsync() that issues fsync (instead of fdatasync). 2012-08-27 21:24:17 -07:00
builder.h A number of fixes: 2011-10-31 17:22:06 +00:00
c_test.c merge 1.5 2012-08-28 11:43:33 -07:00
c.cc put log in a seperate dir 2012-09-06 17:52:08 -07:00
corruption_test.cc Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
db_bench.cc An configurable option to write data using write instead of mmap. 2012-10-03 17:08:13 -07:00
db_filesnapshot.cc The BackupAPI should also list the length of the manifest file. 2012-09-25 03:13:25 -07:00
db_impl.cc If ReadCompaction is switched off, then it is better to not even submit background compaction jobs. 2012-09-25 11:07:01 -07:00
db_impl.h The BackupAPI should also list the length of the manifest file. 2012-09-25 03:13:25 -07:00
db_iter.cc A number of fixes: 2011-10-31 17:22:06 +00:00
db_iter.h A number of fixes: 2011-10-31 17:22:06 +00:00
db_statistics.h Fix table-cache size bug, gather table-cache statistics and prevent readahead done by fs. Summary: 2012-05-30 16:42:45 -07:00
db_stats_logger.cc remove boost 2012-09-16 19:33:43 -07:00
db_test.cc Trigger read compaction only if seeks to storage are incurred. 2012-09-28 11:10:52 -07:00
dbformat_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
dbformat.cc Added bloom filter support. 2012-04-17 08:36:46 -07:00
dbformat.h Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
filename_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
filename.cc put log in a seperate dir 2012-09-06 17:52:08 -07:00
filename.h put log in a seperate dir 2012-09-06 17:52:08 -07:00
log_format.h A number of fixes: 2011-10-31 17:22:06 +00:00
log_reader.cc A number of fixes: 2011-10-31 17:22:06 +00:00
log_reader.h A number of fixes: 2011-10-31 17:22:06 +00:00
log_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
log_writer.cc A number of fixes: 2011-10-31 17:22:06 +00:00
log_writer.h A number of fixes: 2011-10-31 17:22:06 +00:00
memtable.cc A number of fixes: 2011-10-31 17:22:06 +00:00
memtable.h A number of fixes: 2011-10-31 17:22:06 +00:00
repair.cc Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
skiplist_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
skiplist.h skiplist: optimize for sequential insert pattern 2012-05-11 09:57:40 -07:00
snapshot.h A number of fixes: 2011-10-31 17:22:06 +00:00
table_cache.cc Trigger read compaction only if seeks to storage are incurred. 2012-09-28 11:10:52 -07:00
table_cache.h Trigger read compaction only if seeks to storage are incurred. 2012-09-28 11:10:52 -07:00
version_edit_test.cc Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
version_edit.cc Clean up compiler warnings generated by -Wall option. 2012-08-29 14:24:51 -07:00
version_edit.h Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
version_set_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
version_set.cc Trigger read compaction only if seeks to storage are incurred. 2012-09-28 11:10:52 -07:00
version_set.h The BackupAPI should also list the length of the manifest file. 2012-09-25 03:13:25 -07:00
write_batch_internal.h added group commit; drastically speeds up mult-threaded synchronous write workloads 2012-03-08 16:23:21 -08:00
write_batch_test.cc added group commit; drastically speeds up mult-threaded synchronous write workloads 2012-03-08 16:23:21 -08:00
write_batch.cc added group commit; drastically speeds up mult-threaded synchronous write workloads 2012-03-08 16:23:21 -08:00