 - Simplify pipespace() by eliminating the explicit creation of vm objects.    Instead, let the vm objects be lazily instantiated at fault time.  This    results in the allocation of fewer vm objects and vm map entries due to    aggregation in the vm system.
 - Simplify pipespace() by eliminating the explicit creation of vm objects.
   Instead, let the vm objects be lazily instantiated at fault time.  This
   results in the allocation of fewer vm objects and vm map entries due to
   aggregation in the vm system.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase