int
DBENV->set_lg_bsize(DB_ENV *dbenv, u_int32_t lg_bsize);
Description
Set the size of the in-memory log buffer, in bytes. By default, or if
the value is set to 0, a size of 32K is used.
Log information is stored in-memory until the storage space fills up
or transaction commit forces the information to be flushed to stable
storage. In the presence of long-running transactions or transactions
producing large amounts of data, larger buffer sizes can increase
throughput.
The DBENV->set_lg_bsize interface may only be used to configure Berkeley DB before
the DBENV->open interface is called.
The DBENV->set_lg_bsize function returns a non-zero error value on failure and 0 on success.
The database environment's log buffer size may also be set using the environment's
DB_CONFIG file. The syntax of the entry in that file is a
single line with the string "set_lg_bsize", one or more whitespace characters,
and the size in bytes. Because the DB_CONFIG file is read when the database
environment is opened, it will silently overrule configuration done
before that time.