> You need to pin network interrupts to a specific > core and have haproxy run on a separate core sharing the same L2 cache as the
> one in charge for the interrupts. Do recent CPUs like Sandy Bridge and the upcoming Ivy Bridge actually have shared L2 cache between cores at all? L3 Cache is shared of course, but Wikipedia [1] suggests Sandy Bridge has a fixed 256 kB L2 cache per core. [1] http://en.wikipedia.org/wiki/Sandy_Bridge#Technology
