F9 and KVM
Gerry Reno
greno at verizon.net
Thu May 8 14:47:38 UTC 2008
Richard W.M. Jones wrote:
> On Thu, May 08, 2008 at 02:22:51AM -0400, Gerry Reno wrote:
>
>> Ok, I tried creating some fresh images using virt-manager. I'm not having
>> much luck. I try creating a f7 and f9 vm. On both installs the installer
>> runs slow. Much slower than equivalent vm in vmware under F7. Also both
>> installs get stuck at prompt to initialize /dev/sda. When you answer 'yes'
>> it takes almost 10 minutes for a prompt to come back and say it had some
>> error and retry,ignore,cancel. I'm wondering if the speed issue is
>> related to this being a quad-core machine?
>>
>
> It's more likely down to your hardware either not supporting hardware
> virtualization, or supporting it really badly. Is the kvm-intel or
> kvm-amd module loaded into the kernel? Did 'dmesg' say anything when
> it was loaded? What is in /proc/cpuinfo flags?
>
> Rich.
>
>
Rich,
The hardware appears to support hardware virtualization:
======================================================
# grep svm /proc/cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
Here's what is in /proc/cpuinfo:
======================================================
[root at grp-01-10-01 MX_1]# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Phenom(tm) 9850 Quad-Core Processor
stepping : 3
cpu MHz : 1250.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
bogomips : 2512.94
clflush size : 64
processor : 1
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Phenom(tm) 9850 Quad-Core Processor
stepping : 3
cpu MHz : 1250.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
bogomips : 2512.94
clflush size : 64
processor : 2
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Phenom(tm) 9850 Quad-Core Processor
stepping : 3
cpu MHz : 1250.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
bogomips : 2512.94
clflush size : 64
processor : 3
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Phenom(tm) 9850 Quad-Core Processor
stepping : 3
cpu MHz : 1250.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc pni monitor cx16 popcnt lahf_lm
cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
osvw ibs ts ttp tm stc 100mhzsteps hwpstate
bogomips : 2512.94
clflush size : 64
======================================================
But I notice from dmesg that it reports different capability for cpus
(notice the bogomips):
======================================================
CPU0: AMD Phenom(tm) 9850 Quad-Core Processor stepping 03
Booting processor 1/1 ip 4000
CPU 1 irqstacks, hard=c07ba000 soft=c079a000
Initializing CPU#1
Calibrating delay using timer specific routine.. 5022.86 BogoMIPS
(lpj=2511432)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 1(4) -> Core 2
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
CPU1: AMD Phenom(tm) 9850 Quad-Core Processor stepping 03
Booting processor 2/2 ip 4000
CPU 2 irqstacks, hard=c07bb000 soft=c079b000
Initializing CPU#2
Calibrating delay using timer specific routine.. 5022.84 BogoMIPS
(lpj=2511421)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 2(4) -> Core 1
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#2.
CPU2: AMD Phenom(tm) 9850 Quad-Core Processor stepping 03
Booting processor 3/3 ip 4000
CPU 3 irqstacks, hard=c07bc000 soft=c079c000
Initializing CPU#3
Calibrating delay using timer specific routine.. 5022.85 BogoMIPS
(lpj=2511426)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU 3(4) -> Core 3
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#3.
CPU3: AMD Phenom(tm) 9850 Quad-Core Processor stepping 03
Total of 4 processors activated (20094.44 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
Brought up 4 CPUs
sizeof(vma)=84 bytes
sizeof(page)=32 bytes
sizeof(inode)=340 bytes
sizeof(dentry)=132 bytes
sizeof(ext3inode)=492 bytes
sizeof(buffer_head)=56 bytes
sizeof(skbuff)=176 bytes
sizeof(task_struct)=3728 bytes
CPU0 attaching sched-domain:
domain 0: span 0000000f
groups: 00000001 00000002 00000004 00000008
CPU1 attaching sched-domain:
domain 0: span 0000000f
groups: 00000002 00000004 00000008 00000001
CPU2 attaching sched-domain:
domain 0: span 0000000f
groups: 00000004 00000008 00000001 00000002
CPU3 attaching sched-domain:
domain 0: span 0000000f
groups: 00000008 00000001 00000002 00000004
net_namespace: 548 bytes
Booting paravirtualized kernel on bare hardware
Time: 16:44:18 Date: 05/06/08
======================================================
[root at grp-01-10-01 MX_1]# modprobe -l | grep -i kvm
/lib/modules/2.6.25-14.fc9.i686/kernel/arch/x86/kvm/kvm-amd.ko
/lib/modules/2.6.25-14.fc9.i686/kernel/arch/x86/kvm/kvm-intel.ko
/lib/modules/2.6.25-14.fc9.i686/kernel/arch/x86/kvm/kvm.ko
======================================================
# dmesg | grep -i kvm
#
======================================================
I see no messages in dmesg about any problem related to kvm. The cpu
speed looks to be half in /proc/cpuinfo as compared with dmesg. That's a
little strange.
Regards,
Gerry
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/fedora-devel-list/attachments/20080508/1bd08794/attachment.htm>
More information about the fedora-devel-list
mailing list