[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-bugs] [Bug 1290] New: SMP 32e RHEL5.1 timer would be slow, if under working pressure.
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1290 Summary: SMP 32e RHEL5.1 timer would be slow, if under working pressure. Product: Xen Version: unstable Platform: x86-64 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Hypervisor AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx ReportedBy: haicheng.li@xxxxxxxxx Environment: ------------ Service OS (ia32/ia32e/IA64): IA32e Guest OS (ia32/ia32e/IA64): IA32e Change Set: 17996 Hardware: SantaRosa (2 LPs) Bug detailed description: -------------------------- When doing CPU2000 testing on SMP IA32E RHEL5.1 Guest, the guest timer would be slower. 1. If only create 1 SMP (vcpus=2) 32e RHEL5.1, when running CPU2k, timer would slower 17 seconds in 746 seconds. 2. If create 2 SMP(vcpus=2) 32e RHEL5.1, when running CPU2k in two guest, each guest timer would slower +30 seconds in ~820 seconds. 3. If create 1 SMP 32e RHEL5.1 and one SMP 32PAE RHEL5.1, 32e guest run CPU2K and 32pae guest run SPECJBB, 32pae guest timer is accurate, but 32E RHEL5.1 guest timer would slow 44 seconds in around 800 seconds. Other configuration: PAE=1 ACPI=1 APIC=1 32PAE guest also need timer_mode=1 to boot up successfully. BTW, timer_mode options will not make IA32E guest timer accuracy. -- Configure bugmail: http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. _______________________________________________ Xen-bugs mailing list Xen-bugs@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-bugs
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