VS2015 improved SSDT builds, I think.  Build times were cut in half, but memory usage skyrocketed.  I&#x27;m supporting a legacy system that used to be north of an hour to build under SSDT.  Now it seems closer to 20 minutes, if it doesn&#x27;t get &quot;Out of Memory&quot;.<p>I do think it maxes out 1 CPU, it&#x27;s just single-threaded.