Linked by Thom Holwerda on Thu 16th Feb 2006 15:34 UTC, submitted by Michael
Intel "Looking over our EIST results today using a Pentium M 750, Intel's technology certainly has its advantages. Switching between the five power-modes, there was evident change in the CPU temperature as well as the power consumption. In addition, the frequency/voltages immediately scaled appropriately when switching between demanding and non-demanding environments. For those, however, seeking to over-ride the switching process at a low frequency/voltage, in order to conserve the battery life, heat output, and noise will find the performance to be severely hampered. As the last portion of our tests had shown, the compilation time had increased 212%, encoding time 218%, frame-rate had decreased 5FPS, and the Mflops had dropped over 233%."
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Hampered?
by JamesTRexx on Thu 16th Feb 2006 18:37 UTC
JamesTRexx
Member since:
2005-11-06

When I set my laptop to minimal performance, I don't want to compile, encode, play a demanding game or do some cpu intensive task.
That's when I browse the web, write something, browse images, etc. A drop of 233% performance on the latest AMD or Intel cpu's leaves plenty enough power for simple tasks. The VIA 800MHz servers at home are powerful enough too.

Reply Score: 2

RE: Hampered?
by bn-7bc on Thu 16th Feb 2006 19:17 UTC in reply to "Hampered?"
bn-7bc Member since:
2005-09-04

Well conserving battery is a good thing if you need to run tha leptop a long time witthout an extrenal power src, but 233% if my math skills does nort fail me the leaves ... -133% hmm 0% means nothing is don and - ... hvat are these 233% based on?

Reply Score: 1

RE[2]: Hampered?
by agentj on Thu 16th Feb 2006 22:48 UTC in reply to "RE: Hampered?"
agentj Member since:
2005-08-19

Maybe decrease 233% was value / 2.33.

Reply Score: 1

negative Mflops!
by nimble on Thu 16th Feb 2006 18:37 UTC
nimble
Member since:
2005-07-06

and the Mflops had dropped over 233%

What's that, some kind of Mflops black hole? Careful not to get too close to it, it will suck any remaining maths skills out of your brain. ;)

Reply Score: 2

Calling Tufte...
by Wes Felter on Thu 16th Feb 2006 22:17 UTC
Wes Felter
Member since:
2005-11-15

Screen shots of terminal windows are a real waste when you could just wrap the output with a PRE tag. (But then you couldn't put a watermark on it...)

When both x & y axes are continuous, a scatter plot should be used instead of bars. And in this case trend lines would have been helpful.

It's also not clear that absolute performance is the appropriate metric in an article about DVS, but introducing other metrics certainly would have complicated the article.

Reply Score: 1