Pentium 4 Hyper-threading tests
From Wikistix
Making rockbox r15613, under NetBSD 4.0_RC4 with an ACPI MP kernel, on a single processor Pentium 4 2.8 GHz system with Hyper-threading enabled in the BIOS:
gmake: 164.12s real 133.35s user 30.01s system
gmake -j 1: 163.59s real 132.76s user 29.97s system
gmake -j 2: 141.67s real 220.55s user 45.87s system
gmake -j 3: 140.58s real 223.93s user 44.82s system
Ignoring system time, this shows about a 17% improvement in runtime.
