1DB_TUNER(1)                  BerkeleyDB Utilities                  DB_TUNER(1)
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NAME

6       db_tuner - analyze and tune btree database
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SYNOPSIS

9       db_tuner [-c cachesize] -d file [-h home] [-s database] [-v]
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DESCRIPTION

12       The  db_tuner  utility  analyzes the data in a btree database, and sug‐
13       gests a page size that is likely to deliver optimal operation.
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OPTIONS

16       -c cachesize
17              Specify a value of the cachesize, otherwise, the  default  value
18              will be set.
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20       -d file
21              Display database statistics for the specified file. If the data‐
22              base contains multiple databases and the -s flag is  not  speci‐
23              fied,   the  statistics  are  for  the  internal  database  that
24              describes the other databases the file contains, and not for the
25              file as a whole.
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27       -h home
28              Specify a home directory for the database environment.
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30       -s database
31              Display page size recommendation for the specified database con‐
32              tained in the file specified with the -d flag.
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34       -v     Display verbose information.
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NOTES

37       The  db_tuner  utility  assumes  that  databases  are  compacted   when
38       analysing the data.  The analysis is based on a static view of the data
39       and the data access and update patterns are not take into account.
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SEE ALSO

42       db_archive(1)  db_checkpoint(1)   db_deadlock(1)   db_dump(1)   db_hot‐
43       backup(1)   db_log_verify(1)  db_load(1)  db_printlog(1)  db_recover(1)
44       db_replicate(1) db_stat(1) db_upgrade(1) db_verify(1)
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48BerkeleyDB 5.3.21              06 December 2016                    DB_TUNER(1)