Bugs item #2886941, was opened at 2009-10-27 09:26 Message generated for change (Comment added) made by avik You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2886941&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: qemu Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: nwxi (nwxi) Assigned to: Nobody/Anonymous (nobody) Summary: Extreme slow down using "-cpu host" Initial Comment: Hi! I've currently experienced a massive slowdown when using flag "-cpu host" on an AMD Phenom 905e with qemu-kvm 0.11.0 and kernel 2.6.31.3 x86_64. This affects network (tested e1000 and virtio) and i/o performance (virtio). Further there are dozens of log messages from kvm module complaining about: cpu0/1 unhandled rdmsr: 0xc0010055 Both, the slowdown and the rdmsr-message do not happen when using qemu64 as cpu, but also occur when using -cpu phenom. Thank you for your comments! regards, Michael ---------------------------------------------------------------------- >Comment By: Avi Kivity (avik) Date: 2009-10-27 11:52 Message: This is fixed in 2.6.32. I'll send a patch to 2.6.31-stable. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2886941&group_id=180599 -- 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
