19:07:45frgodrmeister: While you guys were enjoying ELS I upgraded my old Mac Pro from 2009 to 2x X5690 XEON processors, NVRAM-based SSD (250GB) for real fast disk I/O, 2 SATA SSDs in RAID1 (250GB net) config being the boot disk and a USB 3.0 4-port card. This machine compiles clasp dev in 42 minutes. Same range as my shiny new iMac Pro.