HighDots.NET Computer Hardware Forums  

Low Power Caches

Hardware Chips Processor, cache, memory chips, etc. (comp.sys.ibm.pc.hardware.chips)


Discuss Low Power Caches in the Hardware Chips forum.



Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old   
Patrick
 
Posts: n/a

Default Low Power Caches - 04-23-2007 , 11:57 AM






Hi

I am just doing some experiments with low power caches, called drowsy
caches. I am using
Hotleakage to simulate the behaviour of the cache. I am simulating a
datacache with 1024 lines each holding
64 bytes. The data array of the cache has a power consumption of 0.025
W if all lines are active. If some lines are in
drowsy mode the power consumption is less, each line in drowsy mode
saving around 10e-08 W. Obviously I can detect this difference in my
simulation but I wonder if I could also detect such a change in
practice with real measurement devices? Are there devices that can
detect a difference of lets say 10 lines are in drowsy mode to all
lines are active or will there be too much noise?

Many thanks for usefull comments,
P


Reply With Quote
  #2  
Old   
Spoon
 
Posts: n/a

Default Re: Low Power Caches - 04-24-2007 , 11:32 AM






Patrick wrote:

Quote:
I am just doing some experiments with low power caches, called drowsy
caches. I am using
Hotleakage to simulate the behaviour of the cache. I am simulating a
datacache with 1024 lines each holding
64 bytes. The data array of the cache has a power consumption of 0.025
W if all lines are active. If some lines are in
drowsy mode the power consumption is less, each line in drowsy mode
saving around 10e-08 W. Obviously I can detect this difference in my
simulation but I wonder if I could also detect such a change in
practice with real measurement devices? Are there devices that can
detect a difference of lets say 10 lines are in drowsy mode to all
lines are active or will there be too much noise?
I think you want comp.arch


Reply With Quote
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.