>>Any idea who we can use that? Simply connect the usb-tablet to ehci controller ?
Maybe is it time to use ehci by default ? (It's migratable now). And seem that is use lower cpu (maybe less interrupts ?) the qemu git commit is here : http://git.qemu.org/?p=qemu.git;a=commit;h=427e3aa151c749225364d0c30640e2e3c1756d9d " usb-tablet: Allow connecting to ehci Our ehci code has is capable of significantly lowering the wakeup rate for the hcd emulation while the device is idle. It is possible to add similar code ot the uhci emulation, but that simply is not there atm, and there is no reason why a (virtual) usb-tablet can not be a USB-2 device. Making usb-hid devices connect to the emulated ehci controller instead of the emulated uhci controller on vms which have both lowers the cpuload for a fully idle vm from 20% to 2-3% (on my laptop). An alternative implementation to using a property to select the tablet type, would be simply making it a new device type, ie usb-tablet2, but the downside of that is that this will require libvirt changes to be available through libvirt at all, and then management tools changes to become the default for new vms, where as using a property will automatically get any pc-1.3 type vms the lower cpuload." ----- Mail original ----- De: "Dietmar Maurer" <[email protected]> À: [email protected] Envoyé: Dimanche 17 Février 2013 15:44:01 Objet: [pve-devel] qemu 1.4 and usb-tablet I already updated our git to include the new qemu 1.4 code. From the changelog: > * usb: usb-tablet can be connected as an USB 2.0 device, lowering the CPU > usage substantially Any idea who we can use that? _______________________________________________ pve-devel mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel _______________________________________________ pve-devel mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
