>>I'm wondering: does this also make kvm to ignore write barriers invoked >>by the virtual machine? no, cache=writeback is ok, write barriers are working correctly only with cache=unsafe,it doesn't care about write flush. ----- Mail original ----- De: "folkert" <folkert@xxxxxxxxxxxxxx> À: kvm@xxxxxxxxxxxxxxx Envoyé: Mercredi 12 Juin 2013 10:03:10 Objet: cache write back & barriers Hi, In virt-manager I saw that there's the option for cache writeback for storage devices. I'm wondering: does this also make kvm to ignore write barriers invoked by the virtual machine? regards, Folkert van Heusden -- Always wondered what the latency of your webserver is? Or how much more latency you get when you go through a proxy server/tor? The numbers tell the tale and with HTTPing you know them! http://www.vanheusden.com/httping/ ----------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
