> Anywho, a 40% difference is pretty significant (though NUMA can have > that sort of impact). Alan, what do you think? I was never clear on > how exactly the ahci driver would handle a queue depth larger than 32 > (if it can't, then clearly we'd need a block driver for this hardware). The AHCI driver can drop that support in fairly easily all the queue handling is nicely pluggable. A 40% improvement is a big win, but it seems to me that if any of that is not hardware related (ie the bigger command queue) then we need to be fixing the existing driver to improve *ALL* AHCI devices. Or are we going to end up with a pile of AHCIish drivers for every random device on the planet ? My request for info on the Micron errata has so far been ignored, questions on what is involved in the queue stuff likewise. I'd like to see those matters resolved. Alan -- 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
