bogomips

[Eddie Bindt]

On 1 Dec 2002, Owen Stampflee wrote:

> 
> > Bogomips = MHz * 2 for all PPC procesors
> Not true...
> 
> [owen@fred owen]$ cat /proc/cpuinfo
> cpu             : 603ev
> clock           : 200MHz
> revision        : 2.1 (pvr 0007 0201)
> bogomips        : 133.12
this is because you probably booted this machine with a not-so-good 
version of bootx ... There where endless discussions about this problem in 
the mailinglists ages ago. Get the right booter and you will see the 
machine getting faster ... 

AWS9650 booted with miboot ...
[root@9650]$cat /proc/cpuinfo 
cpu		: 604r
clock		: 240MHz
revision	: 18.3 (pvr 0009 1203)
bogomips	: 465.30
machine		: Power Macintosh
motherboard	: AAPL,9500 MacRISC
detected as	: 16 (PowerMac 9500/9600)
pmac flags	: 00000000
L2 cache	: 512K unified
memory		: 160MB
pmac-generation	: OldWorld

ANS700 booted with quik ...
[root@shiner root]# cat /proc/cpuinfo 
cpu		: 604e
clock		: 200MHz
revision	: 2.2 (pvr 0009 0202)
bogomips	: 399.76
machine		: Power Macintosh
motherboard	: AAPL,ShinerESB MacRISC
detected as	: 17 (Apple Network Server)
pmac flags	: 00000000
L2 cache	: 1024K unified
memory		: 208MB
pmac-generation	: OldWorld

So, in general, 2*cpuclock should be OK ...

Eddie
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