Posted Dec 22, 2005 11:22 UTC (Thu) by ringerc
Parent article: SMP alternatives
The potential user base is larger than hot-plugging SMP users and Xen users. The many of the next generation of laptops will have dual core CPUs, and it's likely to be desirable to shut down a core when on battery (for example).
A dual core system is essentially SMP... and laptops are very power / performance concious. It would not hurt in the slightest to eke out every bit of speed (or efficiency, ie potentially less power use) while on a half-clocked single-core CPU for battery saving, then safely switch to full-bore dual-core mode when on mains.
This patch seems like a really good way to handle that need.
to post comments)