When I start the default demo database (or a new created one) process on Windows XP, the following messaged appears in the command window : # Serving databse 'demo', using 1 thread Does it mean the whole database process is single-threaded? The following section in the monetdb5.config file shows we can config multiple threads # Mserver 5 recognizes a series of command line names instead:# --threads ( 1 | PARMASK)# --memory (MEMMASK )# --properties (CHECKMASK | PROPMASK | BATMASK )# --io (IOMASK | PERFMASK )# --transactions ( TMMASK | DELTAMASK | TEMMASK)# --modules (DLMASK | LOADMASK)# --algorithms (ALGOMASK | ESTIMASK)# --xproperties (XPROPMASK )# --performance (JOINPROPMASK | DEADBEEFMASK) What does 'parmsk' mean, and how to config monetdb to use multiple threads? _________________________________________________________________ More than messages–check out the rest of the Windows Live™. http://www.microsoft.com/windows/windowslive/