VMware: VROOM!

VMware: VROOM!: "ESX 4.0 also simplifies customer environments without sacrificing performance. In our previous ESX 3.5 results, we pinned the device interrupts to make efficient use of hardware caches and improve performance. Binding device interrupts to specific processors is a technique common to SPECweb2005 benchmarking tests to maximize performance. Results published in the http://www.spec.or/osg/web2005 website reveal the complex pinning configurations used by the benchmark publishers in the native environment."