db_tuner(1) - phpMan

DB_TUNER(1)                            BerkeleyDB Utilities                           DB_TUNER(1)



NAME
       db_tuner - analyze and tune btree database

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

DESCRIPTION
       The  db_tuner utility analyzes the data in a btree database, and suggests a page size that
       is likely to deliver optimal operation.

OPTIONS
       -c cachesize
              Specify a value of the cachesize, otherwise, the default value will be set.

       -d file
              Display database statistics for the specified file. If the database contains multi-
              ple databases and the -s flag is not specified, the statistics are for the internal
              database that describes the other databases the file contains, and not for the file
              as a whole.

       -h home
              Specify a home directory for the database environment.

       -s database
              Display  page  size recommendation for the specified database contained in the file
              specified with the -d flag.

       -v     Display verbose information.

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

SEE ALSO
       db_archive(1) db_checkpoint(1) db_deadlock(1) db_dump(1) db_hotbackup(1)  db_log_verify(1)
       db_load(1)  db_printlog(1)  db_recover(1) db_replicate(1) db_stat(1) db_upgrade(1) db_ver-
       ify(1)



BerkeleyDB 5.3.21                        06 December 2016                             DB_TUNER(1)

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