* Performance disparity, problem found
@ 2010-04-01 11:30 Paulo Marques
2010-04-01 12:30 ` Frans Pop
0 siblings, 1 reply; 3+ messages in thread
From: Paulo Marques @ 2010-04-01 11:30 UTC (permalink / raw)
To: linux-kernel
Hi, all
I have two machines that show very different performance numbers.
After digging a little I found out that the first machine has, in
/proc/cpuinfo:
model name : Intel(R) Celeron(R) M processor 1.00GHz
while the other has:
model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
and that seems to be the main difference.
Now the problem is that /proc/cpuinfo is read only. Would it be possible
to make /proc/cpuinfo writable so that I could do:
echo -n "model name : Intel(R) Core(TM)2 Quad CPU Q6600 @
2.40GHz" > /proc/cpuinfo
in the first machine and get a performance similar to the second machine?
--
Paulo Marques - www.grupopie.com
"To know recursion, you must first know recursion."
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Performance disparity, problem found
2010-04-01 11:30 Performance disparity, problem found Paulo Marques
@ 2010-04-01 12:30 ` Frans Pop
2010-04-01 13:50 ` Paulo Marques
0 siblings, 1 reply; 3+ messages in thread
From: Frans Pop @ 2010-04-01 12:30 UTC (permalink / raw)
To: Paulo Marques; +Cc: linux-kernel
Paulo Marques wrote:
> Now the problem is that /proc/cpuinfo is read only. Would it be possible
> to make /proc/cpuinfo writable so that I could do:
>
> echo -n "model name : Intel(R) Core(TM)2 Quad CPU Q6600 @
> 2.40GHz" > /proc/cpuinfo
>
> in the first machine and get a performance similar to the second machine?
Good catch! 'chmod +w /proc/cpuinfo' should do the trick.
Cheers,
FJP
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Performance disparity, problem found
2010-04-01 12:30 ` Frans Pop
@ 2010-04-01 13:50 ` Paulo Marques
0 siblings, 0 replies; 3+ messages in thread
From: Paulo Marques @ 2010-04-01 13:50 UTC (permalink / raw)
To: Frans Pop; +Cc: linux-kernel
Frans Pop wrote:
> Paulo Marques wrote:
>> Now the problem is that /proc/cpuinfo is read only. Would it be possible
>> to make /proc/cpuinfo writable so that I could do:
>>
>> echo -n "model name : Intel(R) Core(TM)2 Quad CPU Q6600 @
>> 2.40GHz" > /proc/cpuinfo
>>
>> in the first machine and get a performance similar to the second machine?
>
> Good catch! 'chmod +w /proc/cpuinfo' should do the trick.
>
> Cheers,
> FJP
Thanks, that did the trick. My first machine is much faster now and it
even has 4 cores! :)
--
Paulo Marques - www.grupopie.com
"All I ask is a chance to prove that money can't make me happy."
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-04-01 11:30 Performance disparity, problem found Paulo Marques
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