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ARM Overclocking (Raspberry Pi and other devices) This is not the ARCH most of you are looking for

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Old 05-30-2013
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Default [HOW TO] Overclock Raspberry Pi?

Tips would come in handy
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Old 05-30-2013
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Raspberry Pi overclocking 101:
0) download Soft-float Debian wheezy at http://www.raspberrypi.org/downloads on an SD card
1) boot your pi and open the config file which contains the cpu frequency:
#sudo nano /boot/config.txt
2) edit the line arm_freq=700 to any value between 700 and 1150
3) reboot
# sudo reboot

Benchmarking
Download a java 6, 7 or 8 runtime.
#sudo apt-get install openjdk-7-jre
Download latest HWBOT Prime
#wget http://downloads.hwbot.org/hwbotprime.jar
And run it!
#java -jar hwbotprime.jar

Lots of usefull info:
http://elinux.org/RPiconfig
=> memory overclocking, gpu overclocking, etc etc
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Old 05-30-2013
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FYI, java 7 seems to be 5 to 8% faster than java 6 for the Pi. Did not try java 8 yet.
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Old 06-03-2013
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Testing java 6 vs 7, no difference here

with the new hwbot version (1.7.1) I see small difference, up to 3% faster with OpenJDK 7:


Raspberry-pi @ 700 MHz
OpenJDK 6 (1.6.0_27)
155.02 Primes/second

OpenJDK 7 (1.7.0_07)
159.76 Primes/second



Raspberry-pi @ 1000 MHz
OpenJDK 6 (1.6.0_27)
195.50 Primes/second

OpenJDK 7 (1.7.0_07)
197.45 Primes/second
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Old 06-04-2013
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Anybody try LN2 on these things yet?
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Old 06-04-2013
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Massman has LN2 at the office and a Pi, but he's on computex right now. I'm eager to know what these little buggers can do on LN2.
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Old 06-08-2013
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Next week maybe
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Old 06-08-2013
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any idea how you can get past the ~1100MHz max clock setting? Is there software that allows more?
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Old 06-09-2013
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I'm very curious, Pieter, keep us updated
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Old 06-12-2013
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Even with an adequate cooling system, we would need to vmod the board in order to get high frequencies (I suppose). And for this, I haven't found anything yet.
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