Variable Processor Speed

All
Was wondering if there is a way to change the processor speed or if it has something to do with how you change the batter settings. Ie performance vs battery life. Im running duo core temp and it shows that im running at 1.5GHz and not 2.0. I have a MB Black 2.0 512MB Ram (2GB in the mail)
Thanks

There have been a lot of discussions about memory allocation in the past, but briefly I touch on a few points. When an array is preallocated (initialized) to be a certain size LabVIEW is then able at compile time to set aside a certain amount of memory for that array. Then, if you are using the "replace array element" function within your loop the array isn't growing, just the values are being changed. If you are building the array in the loop, by appending to the existing array for instance, LabVIEW will continuously have to try and allocate memory space to the increasingly bigger array, sometimes having to move it to a whole new memory area. Additionally, and there are discussions of this in the other threads, if you branch the wires to different functions in the loop, LabVIEW will create copies of the initial array, compounding the whole problem, greatly effecting the execution speed, etc. There have been a lot of discussions about the effects of using the various types of variables (e.g. locals and globals) and other efficiency impacts, for instance having an array of double connected to an indicator of single (or any other type mismatch) which is another thing that creates a copy of the data in memory. You can see that it wouldn't take too many of these to start having an impact on your programs speed. Do a search on this forum for memory usage, memory allocation, efficiency, etc. and you will see some of these discussions. One of the "nuggets" which initially deals with "Action Engines" discusses some of the causes and effects. When you do search, check the date stamps, some of these might be a little old.
Message Edited by LV_Pro on 04-12-2007 02:24 PM
Message Edited by LV_Pro on 04-12-2007 02:26 PM
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

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iMac 1920 x 1200
spdisplays_display_connector
System Software: ?
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Hitachi HDT721032SLA380 disk0 : (298.09 GB)
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Micron Built-in iSight
Microsoft Microsoft Wireless Optical Desktop® 2.10
Brother HL-2270DW series
EPSON EPSON Scanner
Apple Inc. Bluetooth USB Host Controller
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Change Processor Speed with Apple Script?

Can I use AppleScript to change the Processor Speed in System Preferences/Energy Saver pane?
The background is that my PowerBook G4 is quite noisy when it's running on the highest speed. This is okey during the days but on the evenings and nights I want it silent (but still on), so instead of changing this manually I'm thinking of a Script to trigger this.
Please help. :o)

Hi Andreas
yes this can be done using a bit of gui script, the script supplied can be saved as a "application, run only" and activated say from iCal or cron.
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click menu item 3 of menu 1 of pop up button 1 of tab group 1 of window "Energy Saver"
to 2 or 1 "2" is Highest, "1" is Automatic
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tell application "System Events"
if not (UI elements enabled) then set UI elements enabled to true
tell application "System Preferences"
set current pane to pane "com.apple.preference.energysaver"
tell application "System Events" to tell process "System Preferences"
set frontmost to true
click radio button "Options" of tab group 1 of window "Energy Saver"
click pop up button 1 of tab group 1 of window "Energy Saver"
click menu item 2 of menu 1 of pop up button 1 of tab group 1 of window "Energy Saver"
delay 0.5
tell application "System Events"
if (name of processes) contains "System Preferences" then tell application "System Preferences" to quit
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end tell
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Budgie

How can I check what the processor speed is

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Something read wrong. The slowest FP iMac was 700mHz.
While in OSX, can you see if 10.1 has its own version of System Profiler? In newer OSX versions it's in Applications >Utilties.
I jumped from OS9 to 10.2 so, like Eustace, can't remember what 10.1 has--or doesn't have.
You can look dor the sticker/decal with the serial number. That usually gives the processor speed also:
http://support.apple.com/kb/HT2994

New E70 - What is the processor speed?

Does anybody have details of the E70's processor speed?
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I have a MacBook5,1 Processor Name: Intel Core 2 Duo Processor Speed: 2 GHz what operating system can i update to

I have a MacBook5,1 Processor Name: Intel Core 2 Duo Processor Speed: 2 GHz what operating system can i update to

If you are running 10.6.8 you can download 10.9 from the App Store and install it with going through 10.7 and 10.8 first. 10.9 Mavericks is a free download in the App Store.
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New MacBook Air vs previous version- processor speed?

I was going to exchange my < 2wk old MacBook Air for the newer version. the new one has better battery life but it looks like smaller processor? 1.3 GHz vs the 1.8 that I have. How much difference is this?

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Basically... you might have one car that can go 200 miles per hour... and one that can go 150 miles per hour. But maybe you only ever need to go up to 70 miles per hour. Basically, they would both meet your needs as you'll never need the full power of either. That's how you can look at the difference in the processor performance. Just because one is lower, doesn't mean it will perform differently in your daily tasks.
I personally would probably go with the newer model (especially since you're still within the 2 week return period). The boost in graphics performance and the reduced energy use would outweigh the difference in processor speeds.

"stuck" cpu processor speed on different power schemes

Hi, I just purchased an X230 with an Intel Core i5 3230m. I wanted to create an ultra low power scheme with minimum processor speed but found that the processor speed would not change from the maximum 2.6 Ghz. I tried a few different power schemes and they showed the same speed of a 2.6 Ghz. That isn't right --- the low power option should have a processor speed of 1 - 1.5 Ghz. For some reason, I can't reduce the processor speed. I'm stumped!
I'd appreciate any thoughts members may have on this. I must be missing something fairly basic here. But I tried changing it in Lenovo Power Manager and Win 7 Power Options.

even on the maximum performance scheme under windows, the cpu should throttle. But the way Id tackle this issue: (1) check your bios and make sure you have all the power management features turned to auto or at least not at 100% all the time (its something along these lines). (2) Check your windows power scheme, configure the maximum battery one and do a min/max cpu speed of 5% and cpu cooling to passive. This should force the CPU to the lowest state if (1) is met.

Reducing Processor speed for Power problems

I have already replaced the power supply in my G5 20"iMac under Apples self-install program. That problem was resolved (no power), but now the computer has been unexpectedly shutting off and has frequent high fan noise . I reduced the processor speed and it has been usable. I plan to take it to an Apple Store because my 1yr. waranty is almost up, however, my serial # falls in the Repair Extension program for Video and Power issues.
I am hoping they will diagnose on the spot and order a new logic board or whatever. I do not want to leave the computer at the store while a part is ordered as it is usable.
Does anyone know what I can expect at the Store?
And, in general, can anyone tell me what happens when the computer is used with reduced Processor speed.I have not really noticed a difference, but I think I am just masking the problem.
Thank you

Hi
If you do decide to go with a processor upgrade, they're available from a number of manufacturers including Giga Designs, Sonnet, OWC/PowerLogix/NewerTech and FastMac:
http://www.gigadesigns.com/
http://www.sonnettech.com/product/cpu_upgrades.html
http://eshop.macsales.com/shop/accelerators/
http://fastmac.com/
Most of the above web sites have more detailed information about their processor upgrades and downloadable installation manuals and/or videos, so you can check compatibility and what's involved in replacing the processor.
Here in the UK the Sonnet upgrades seem the most readily available and are available from the following stockists amongst others:
http://www.macheaven.co.uk/
http://www.macupgrades.co.uk/store/
I've also ordered from OWC in the States before without any problems. With the good exchange rate you may save some money, although be aware I've always ended up paying some form of import tax, so the savings aren't as great as you may expect.
If it were me I'd consider a 7455 based OWC Mercury Extreme upgrade:
http://eshop.macsales.com/shop/accelerators/OWC-Mercury-Extreme/
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I hope this helps.

Upgrade Processor Speed

I just bought a PowerBook, with HD 40 GB Processor Type: PowerPC G4, Mac OS 10.4, Tiger, Processor Speed 400 MHz, Screen Size: 15 inches,RAM 384 MB
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http://daystartechnology.com/AppleMac_Products/Daystar_Mac_ProductIndex.html
These guy's have that likely will work, but there is other companies out there that also produce CPU upgrades.

Variable Processor Speed

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