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Mark Callaghan d9f538e1a9 Improve output for GetProperty('leveldb.stats') 
Summary:
Display separate values for read, write & total compaction IO.
Display compaction amplification and write amplification.
Add similar values for the period since the last call to GetProperty. Results since the server started
are reported as "cumulative" stats. Results since the last call to GetProperty are reported as
"interval" stats.

Level  Files Size(MB) Time(sec)  Read(MB) Write(MB)    Rn(MB)  Rnp1(MB)  Wnew(MB) Amplify Read(MB/s) Write(MB/s)      Rn     Rnp1     Wnp1     NewW    Count  Ln-stall
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
  0        7       13        21         0       211         0         0       211     0.0       0.0        10.1        0        0        0        0      113       0.0
  1       79      157        88       993       989       198       795       194     9.0      11.3        11.2      106      405      502       97       14       0.0
  2       19       36         5        63        63        37        27        36     2.4      12.3        12.2       19       14       32       18       12       0.0
>>>>>>>>>>>>>>>>>>>>>>>>> text below has been is new and/or reformatted
Uptime(secs): 122.2 total, 0.9 interval
Compaction IO cumulative (GB): 0.21 new, 1.03 read, 1.23 write, 2.26 read+write
Compaction IO cumulative (MB/sec): 1.7 new, 8.6 read, 10.3 write, 19.0 read+write
Amplification cumulative: 6.0 write, 11.0 compaction
Compaction IO interval (MB): 5.59 new, 0.00 read, 5.59 write, 5.59 read+write
Compaction IO interval (MB/sec): 6.5 new, 0.0 read, 6.5 write, 6.5 read+write
Amplification interval: 1.0 write, 1.0 compaction
>>>>>>>>>>>>>>>>>>>>>>>> text above is new and/or reformatted
Stalls(secs): 90.574 level0_slowdown, 0.000 level0_numfiles, 10.165 memtable_compaction, 0.000 leveln_slowdown

Task ID: #

Blame Rev:

Test Plan:
make check, run db_bench

Revert Plan:

Database Impact:

Memcache Impact:

Other Notes:

EImportant:

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

Reviewers: haobo

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D11049
2013-06-03 20:24:49 -07:00
..
.nfs00000000066c9ebb00000002 Enhance db_bench 2013-03-14 16:00:23 -07:00
builder.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
builder.h Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database. 2013-03-20 23:14:03 -07:00
c_test.c Fix poor error on num_levels mismatch and few other minor improvements 2013-01-25 15:37:26 -08:00
c.cc Fix poor error on num_levels mismatch and few other minor improvements 2013-01-25 15:37:26 -08:00
corruption_test.cc [RocksDB] Fix CorruptionTest 2013-05-28 12:36:42 -07:00
db_bench.cc [RocksDB] Introduce Fast Mutex option 2013-06-01 23:11:34 -07:00
db_filesnapshot.cc Fix all the lint errors. 2012-11-28 17:18:41 -08:00
db_impl_readonly.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
db_impl_readonly.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
db_impl.cc Improve output for GetProperty('leveldb.stats') 2013-06-03 20:24:49 -07:00
db_impl.h Improve output for GetProperty('leveldb.stats') 2013-06-03 20:24:49 -07:00
db_iter.cc Record the number of open db iterators. 2013-05-29 08:47:08 -07:00
db_iter.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
db_statistics.h [RocksDB] Expose DBStatistics 2013-05-23 11:49:38 -07:00
db_stats_logger.cc remove boost 2012-09-16 19:33:43 -07:00
db_test.cc Fix valgrind errors introduced by https://reviews.facebook.net/D10863 2013-05-23 12:14:41 -07:00
dbformat_test.cc Fix all warnings generated by -Wall option to the compiler. 2012-11-06 14:07:31 -08:00
dbformat.cc manifest_dump: Add --hex=1 option 2012-12-16 08:58:28 -08:00
dbformat.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
filename_test.cc Added meta-database support. 2012-12-17 11:26:59 -08:00
filename.cc Allow the logs to be purged by TTL. 2013-02-04 19:42:40 -08:00
filename.h Added meta-database support. 2012-12-17 11:26:59 -08:00
log_file.h GetUpdatesSince API to enable replication. 2012-12-07 11:42:13 -08:00
log_format.h Fixed sign-comparison in rocksdb code-base and fixed Makefile 2013-03-19 14:35:23 -07:00
log_reader.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
log_reader.h TransactionLogIter should stall at the last record. Currently it errors out 2013-03-21 15:12:35 -07:00
log_test.cc Fix more signed-unsigned comparisons 2013-03-19 17:21:36 -07:00
log_writer.cc Fix a number of object lifetime/ownership issues 2013-01-23 16:54:11 -08:00
log_writer.h Fix a number of object lifetime/ownership issues 2013-01-23 16:54:11 -08:00
memtable.cc [RocksDB] [Performance Bug] MemTable::Get Slow 2013-05-21 13:40:38 -07:00
memtable.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
memtablelist.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
memtablelist.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
merge_helper.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
merge_helper.h [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
merge_test.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
repair.cc Ability to configure bufferedio-reads, filesystem-readaheads and mmap-read-write per database. 2013-03-20 23:14:03 -07:00
skiplist_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
skiplist.h Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
snapshot.h [RocksDB] fix compaction filter trigger condition 2013-05-13 12:33:02 -07:00
table_cache.cc [RocksDB] [Performance] Allow different posix advice to be applied to the same table file 2013-05-30 19:08:44 -07:00
table_cache.h [RocksDB] [Performance] Allow different posix advice to be applied to the same table file 2013-05-30 19:08:44 -07:00
transaction_log_iterator_impl.cc Allocate the LogReporter from heap. Summary: 2013-04-29 13:19:24 -07:00
transaction_log_iterator_impl.h Allocate the LogReporter from heap. Summary: 2013-04-29 13:19:24 -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 Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
version_edit.h Fix poor error on num_levels mismatch and few other minor improvements 2013-01-25 15:37:26 -08:00
version_set_reduce_num_levels.cc Fix valgrind errors in rocksdb tests: auto_roll_logger_test, reduce_levels_test 2013-03-12 16:03:16 -07:00
version_set_test.cc Codemod NULL to nullptr 2013-02-28 18:04:58 -08:00
version_set.cc [RocksDB] [Performance] Allow different posix advice to be applied to the same table file 2013-05-30 19:08:44 -07:00
version_set.h [RocksDB] Add score column to leveldb.stats 2013-06-03 17:38:27 -07:00
write_batch_internal.h GetUpdatesSince API to enable replication. 2012-12-07 11:42:13 -08:00
write_batch_test.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00
write_batch.cc [Rocksdb] Support Merge operation in rocksdb 2013-05-03 16:59:02 -07:00