* kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
@ 2006-06-19 23:31 art
2006-06-19 23:51 ` Dave Jones
0 siblings, 1 reply; 3+ messages in thread
From: art @ 2006-06-19 23:31 UTC (permalink / raw)
To: linux-kernel
kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
$cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 43
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
stepping : 1
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 2005.64
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 43
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
stepping : 1
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 2005.64
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
-----------------------
dmesg
....
time.c: Using 3.579545 MHz WALL PM GTOD PM timer.
time.c: Detected 2204.635 MHz processor.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2052156k/2096064k available (2297k kernel code, 43520k
reserved, 1131k data, 200k init)
Calibrating delay using timer specific routine.. 4412.42 BogoMIPS (lpj=2206214
xboom
art@usfltd.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
2006-06-19 23:31 art
@ 2006-06-19 23:51 ` Dave Jones
0 siblings, 0 replies; 3+ messages in thread
From: Dave Jones @ 2006-06-19 23:51 UTC (permalink / raw)
To: art; +Cc: linux-kernel
On Mon, Jun 19, 2006 at 06:31:34PM -0500, art@usfltd.com wrote:
> kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
>
> $cat /proc/cpuinfo
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 43
> model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
> stepping : 1
> cpu MHz : 1000.000
> cache size : 512 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
> fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
> bogomips : 2005.64
> TLB size : 1024 4K pages
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp
^^^^^^^
Your cpu can (and is) scaling its speed & voltage to save power.
Bogomips will scale accordingly.
Dave
--
http://www.codemonkey.org.uk
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
[not found] <fa.dmtq+XkP55RoiOTQhW+l7Whdwqk@ifi.uio.no>
@ 2006-06-19 23:53 ` Robert Hancock
0 siblings, 0 replies; 3+ messages in thread
From: Robert Hancock @ 2006-06-19 23:53 UTC (permalink / raw)
To: art; +Cc: linux-kernel
art@usfltd.com wrote:
> kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo
>
> $cat /proc/cpuinfo
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 15
> model : 43
> model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
> stepping : 1
> cpu MHz : 1000.000
> cache size : 512 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 2
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
> fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
> bogomips : 2005.64
> TLB size : 1024 4K pages
> clflush size : 64
> cache_alignment : 64
> address sizes : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp
If the CPU supports clock frequency changes then this clock
speed/BogoMIPS value may be correct at the time the file was viewed if
CPU load was low.
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-06-19 23:53 ` kernel-x64-smp-multiprocessor-speed & bogomips problem in /proc/cpuinfo Robert Hancock
2006-06-19 23:31 art
2006-06-19 23:51 ` Dave Jones
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