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# Berkley DB Tuning
#
# http://www.oracle.com/technology/documentation/
#           berkeley-db/db/ref/env/db_config.html
#
#

# Perform locking on an environment-wide basis 
set_flags DB_CDB_ALLDB 

# Maintain transaction logs in memory rather than on disk
set_flags DB_LOG_INMEMORY

# Automatically remove log files as soon as they are no longer needed
set_flags DB_LOG_AUTOREMOVE

# Do not write or synchronously flush the log on transaction commit
set_flags DB_TXN_NOSYNC

# Will write, but will not synchronously flush, the log on transaction commit.
#set_flags DB_TXN_WRITE_NOSYNC

# Do not write log records
#set_flags DB_TXN_NOT_DURABLE

# Set max logsize
#set_lg_max 1048576

# Set the maximum number of locks supported by the lock subsystem
set_lk_max_locks 10000

# test-and-set mutexes should spin tas_spins times without blocking
set_tas_spins 100

# Set the size of the shared memory buffer pool (gbytes, bytes, ncache)
set_cachesize 1 0 1