* EHCI (usb 2.0) support @ 2008-09-06 5:54 ` Max Krasnyansky 0 siblings, 0 replies; 4+ messages in thread From: Max Krasnyansky @ 2008-09-06 5:54 UTC (permalink / raw) To: qemu-devel, kvm With my latest USB patches, that I just sent out, UHCI support is probably as good as it gets. I tested all kinds of devices with Linux and XP guests and things are solid. Host USB is now fully async and I do not see any delays/jerkiness anymore. However, overall performance can certainly be improved by supporting EHCI (ie usb-2.0 stuff). For example native performance of an external USB hard drive is ~28MB/sec (measured with hdparm). The same drive attached to the Linux guest gives me about 500KB/sec. Huge difference. So I'm going to start working on EHCI (starting tomorrow). If somebody has any EHCI code I can use let me know. Max ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Qemu-devel] EHCI (usb 2.0) support @ 2008-09-06 5:54 ` Max Krasnyansky 0 siblings, 0 replies; 4+ messages in thread From: Max Krasnyansky @ 2008-09-06 5:54 UTC (permalink / raw) To: qemu-devel, kvm With my latest USB patches, that I just sent out, UHCI support is probably as good as it gets. I tested all kinds of devices with Linux and XP guests and things are solid. Host USB is now fully async and I do not see any delays/jerkiness anymore. However, overall performance can certainly be improved by supporting EHCI (ie usb-2.0 stuff). For example native performance of an external USB hard drive is ~28MB/sec (measured with hdparm). The same drive attached to the Linux guest gives me about 500KB/sec. Huge difference. So I'm going to start working on EHCI (starting tomorrow). If somebody has any EHCI code I can use let me know. Max ^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [Qemu-devel] EHCI (usb 2.0) support 2008-09-06 5:54 ` [Qemu-devel] " Max Krasnyansky @ 2008-09-07 6:31 ` Arnon Gilboa -1 siblings, 0 replies; 4+ messages in thread From: Arnon Gilboa @ 2008-09-07 6:31 UTC (permalink / raw) To: qemu-devel, kvm This one might be a starting point for EHCI http://lists.gnu.org/archive/html/qemu-devel/2008-01/msg00144.html ^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [Qemu-devel] EHCI (usb 2.0) support @ 2008-09-07 6:31 ` Arnon Gilboa 0 siblings, 0 replies; 4+ messages in thread From: Arnon Gilboa @ 2008-09-07 6:31 UTC (permalink / raw) To: qemu-devel, kvm This one might be a starting point for EHCI http://lists.gnu.org/archive/html/qemu-devel/2008-01/msg00144.html ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-09-07 7:01 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2008-09-06 5:54 EHCI (usb 2.0) support Max Krasnyansky 2008-09-06 5:54 ` [Qemu-devel] " Max Krasnyansky 2008-09-07 6:31 ` Arnon Gilboa 2008-09-07 6:31 ` Arnon Gilboa
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.