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Mark Callaghan 3e7e269292 Use timer to measure sleep rather than assume it is 1000 usecs 
Summary:
This makes the stall timers in MakeRoomForWrite more accurate by timing
the sleeps. From looking at the logs the real sleep times are usually
about 2000 usecs each when SleepForMicros(1000) is called. The modified LOG messages are:
2012/10/29-12:06:33.271984 2b3cc872f700 delaying write 13 usecs for level0_slowdown_writes_trigger
2012/10/29-12:06:34.688939 2b3cc872f700 delaying write 1728 usecs for rate limits with max score 3.83

Task ID: #

Blame Rev:

Test Plan:
run db_bench, look at DB/LOG

Revert Plan:

Database Impact:

Memcache Impact:

Other Notes:

EImportant:

- begin *PUBLIC* platform impact section -
Bugzilla: #
- end platform impact -

Reviewers: dhruba

Reviewed By: dhruba

Differential Revision: https://reviews.facebook.net/D6297
 		2012-10-30 07:21:37 -07:00
..
builder.cc Allow having different compression algorithms on different levels. 2012-10-29 11:48:09 -07:00
builder.h A number of fixes: 2011-10-31 17:22:06 +00:00
c.cc put log in a seperate dir 2012-09-06 17:52:08 -07:00
c_test.c merge 1.5 2012-08-28 11:43:33 -07:00
corruption_test.cc Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
db_bench.cc Allow having different compression algorithms on different levels. 2012-10-29 11:48:09 -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 Use timer to measure sleep rather than assume it is 1000 usecs 2012-10-30 07:21:37 -07:00
db_impl.h Adds DB::GetNextCompaction and then uses that for rate limiting db_bench 2012-10-29 10:17:43 -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 fix test failure 2012-10-29 18:55:52 -07:00
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
dbformat_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
filename_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
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.h skiplist: optimize for sequential insert pattern 2012-05-11 09:57:40 -07:00
skiplist_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
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.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_edit_test.cc Make some variables configurable for each db instance 2012-06-27 14:36:31 -07:00
version_set.cc add "seek_compaction" to log for better debug Summary: 2012-10-22 10:00:25 -07:00
version_set.h Adds DB::GetNextCompaction and then uses that for rate limiting db_bench 2012-10-29 10:17:43 -07:00
version_set_test.cc A number of fixes: 2011-10-31 17:22:06 +00:00
write_batch.cc added group commit; drastically speeds up mult-threaded synchronous write workloads 2012-03-08 16:23:21 -08:00
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