power
Mobile and Netbook optimization blogs posted on the Atom Developer site
A few weeks back I posted a few blogs to the Atom Developer site that contained useful information about optimizing for small mobile form factor devices. I wanted to give a brief mention of those blogs here so that the broader audience might know they are there and to also give a heads up for the Atom Developer focused site. (New blogs are auto posted as necessary now, but these were posted before that system was in place, thus this notice )
Performance per Watt: Hey, I already know it’s important, don’t I? (The intro, part I)
What is performance per Watt?
Performance per Watt is pretty straight forward when you first look at it. Then you begin to sink in the quicksand you’ve blithely walked into. The panic sets in as you sink lower and lower. Eventually you decide to ignore the whole complicated mess and go back to saying to yourself how straight forward it is. Of course, deep within your heart of hearts, you know that it’s not.
For most of us, performance per Watt is nothing more than how much our computer can get done on a given battery charge.
Performance per Watt is pretty straight forward when you first look at it. Then you begin to sink in the quicksand you’ve blithely walked into. The panic sets in as you sink lower and lower. Eventually you decide to ignore the whole complicated mess and go back to saying to yourself how straight forward it is. Of course, deep within your heart of hearts, you know that it’s not.
For most of us, performance per Watt is nothing more than how much our computer can get done on a given battery charge.
Performance per Watt: Hey, I already know it’s important, don’t I? (The preface)
One of the big advantages of blogging is that I can write about anything I want, as long is it doesn’t violate any Intel conduct rules, refer to any competitors, reveal any confidential information, insult anyone, compliment people (yeah, I said compliment), and so on and so on and so on. Outside of that, I have a free hand.
Why Parallel Processing? Why now? What about my legacy code?
Many software companies have applications which are in use by their customers that have significant runtime and for which fast runtime is a necessity or a competitive advantage. There has always been the pressure to make such applications go faster. Historically, as processors have increased their speed, the needed speedups could often be achieved by tuning the single cpu performance of the program and by utilizing the latest and fastest hardware.
Why P scales as C*V^2*f is so obvious (pt 1)
[apologies gentle readers if you've seen this twice. I've moved this over from my mysterious twin account (taylor-kidd-2) over to this account (taylor-kidd)]
[Warning: Math and physics alert! Math and physics alert!]
I think that you've all seen this equation before:
P = a * C * V2 * f
Where P is power, C is capacitance, V is the voltage across the gate (typically, Vdd), f is the clock frequency, and a is some constant.
Why P scales as C*V^2*f is so obvious
[Warning: Math and physics alert! Math and physics alert!]
I think that you've all seen this equation before:
P = a * C * V2 * f
Where P is power, C is capacitance, V is the voltage across the gate (typically, Vdd), f is the clock frequency and a is some constant.
New topics and restarting the blog
Oh my gosh. Looking at a history of my previous blogs, I can't believe my last article was in September 2008. That can’t be true. I've written several since then. Hey wait. To quote the great down home philosopher, Homer Simpson, “D’oh!” Sure, I'd written several, but had I published them?
Life gets busy. That's a truism. If you're reading this, then you know it's true. If you aren't reading this, then you're probably even busier, say trying to keep your job or trying to find a new one so that you can keep your house.
Green Home Management – Can we learn from PCs?
If we could update our homes like we have the Microprocessor we really could improve the cost of building and managing the power consumed in our homes. I’ve become more aware of just how much power I consume and continue to search for ways to cut that aspect of my life.
OpenSolaris and Centrino 2
Last summer, Intel launched our latest mobile computing platform, branded Intel Centrino 2 processor technology. For a long time as we were doing OpenSolaris development, I used to know this platform by its codename "Montevina", but that's all history now. Long live Centrino 2!
This new mobile platform has some great features, like a multi-core processor, great battery life, new graphics and wireless technologies.
This new mobile platform has some great features, like a multi-core processor, great battery life, new graphics and wireless technologies.
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