Specify the size in bytes of the in-memory cache associated
with each open index file. If not supported by the underlying database
method, this option is ignored without comment. The default is 100000 bytes.
+.TP
.B dbcachenowsync
Specify that database writes should not be immediately synchronized
-with in memory changes. Enabling this option may improving performance
+with in memory changes. Enabling this option may improve performance
at the expense of data security.
.TP
.B directory <directory>