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 sug-
gests 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 data-
base contains multiple databases and the -s flag is not speci-
fied, 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 con-
tained 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_hot-
backup(1) db_log_verify(1) db_load(1) db_printlog(1) db_recover(1)
db_replicate(1) db_stat(1) db_upgrade(1) db_verify(1)
BerkeleyDB 5.3.21 06 December 2016 DB_TUNER(1)