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

# Set in-memory transaction log cache (10MB)
set_lg_bsize 10485760

# Set the maximum size of log files (40MB)
set_lg_max 41943040

# 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

# Set the size of the shared memory buffer pool (gbytes, bytes, ncache)
set_cachesize 0 524288000 1