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RE: [Xen-devel] cpu recognition

To: "Karl Rister" <kmr@xxxxxxxxxx>
Subject: RE: [Xen-devel] cpu recognition
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Mon, 28 Nov 2005 22:46:04 -0000
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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> > Please can you try running the following in dom0:
> >
> > hwclock; date; sleep 10; hwclock; date
> 
> Output is:
> 
> Mon 28 Nov 2005 04:26:08 PM CST  -0.454938 seconds
> Mon Nov 28 16:26:08 CST 2005
> Mon 28 Nov 2005 04:26:19 PM CST  -0.987975 seconds
> Mon Nov 28 16:26:19 CST 2005

Interesting: looks like time is progressing OK on your system, so it
must be something specific to the way the CPU MHz Is calculated in
Linux.

Ian 


> >
> > Thanks,
> > Ian
> >
> > > xm info:
> > >
> > > system                 : Linux
> > > host                   : ---
> > > release                : 2.6.12-xen0-smp
> > > version                : #1 SMP Mon Nov 28 13:59:13 CST 2005
> > > machine                : x86_64
> > > nr_cpus                : 16
> > > nr_nodes               : 1
> > > sockets_per_node       : 4
> > > cores_per_socket       : 2
> > > threads_per_core       : 2
> > > cpu_mhz                : 3002
> > > hw_caps                :
> > > bfebfbff:20100800:00000000:00000080:000065bd:00000000:0
> > > 0000001
> > > memory                 : 16383
> > > free_memory            : 133
> > > xen_major              : 3
> > > xen_minor              : 0
> > > xen_extra              : -devel
> > > xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_64
> > > platform_params        : virt_start=0xffff800000000000
> > > xen_changeset          : Mon Nov 28 11:22:02 2005
> > > 8090:243265ade4045314ee4170436
> > > cc704afa
> > > cc_compiler            : gcc version 4.0.0 20050519 (Red 
> Hat 4.0.0-8)
> > > cc_compile_by          : root
> > > cc_compile_domain      : ---
> > > cc_compile_date        : Mon Nov 28 13:56:08 CST 2005
> > >
> > > /proc/cpuinfo:
> > >
> > > processor       : 0
> > > vendor_id       : GenuineIntel
> > > cpu family      : 15
> > > model           : 4
> > > model name      :                    Genuine Intel(R) CPU 3.00GHz
> > > stepping        : 8
> > > cpu MHz         : 4222.844
> > > cache size      : 2048 KB
> > > physical id     : 0
> > > siblings        : 4
> > > core id         : 0
> > > cpu cores       : 2
> > > fpu             : yes
> > > fpu_exception   : yes
> > > cpuid level     : 5
> > > wp              : yes
> > > flags           : fpu vme de pse tsc msr pae mce cx8 apic sep
> > > mtrr pge mca
> > > cmov
> > > pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall
> > > nx lm constant_tsc  pni monitor ds_cpl est tm2 cid cx16 
> xtpr lahf_lm
> > > bogomips        : 8388.60
> > > clflush size    : 64
> > > cache_alignment : 128
> > > address sizes   : 40 bits physical, 48 bits virtual
> > > power management:
> > > </snip>
> > >
> > >
> > >
> > > --
> > > Karl Rister
> > >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-devel
> 
> -- 
> Karl Rister
> 

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