Asai Thambi S P <asamymuthupa@xxxxxxxxxx> writes: > On 5/11/2011 1:20 PM, Alan Cox wrote: >> So a bigger queue helped (at least in 2006). The AHCI driver can be >> taught your bigger queue easily enough. The question is where with a >> *current* kernel are any remaining bottlenecks if you do that and how do >> we fix them. > > Attached image/table shows the performance numbers on current kernel. > > The main objectives of our new mtipx2xx driver are > 1.) highest performance (see attached image/table), > 2.) lowest CPU utilization, and Can you collect perf data to show why the ahci driver is taking up so much more CPU for the random I/O case? Thanks, Jeff -- 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
