On Fri, Oct 30, 2015 at 05:09:46PM -0400, Dan Williams wrote: > For high frequency I/O the overhead of threaded interrupts impacts > performance. Add an option to make it configurable, with the default > being hardirq. > > A quick out-of-the-box test (i.e. no affinity tuning) shows ~10% random > read performance at ~20% less cpu. The cpu wins appear to be from > reduced lock contention. Do we need threaded irq at all? Why not just switch to hardirq? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
