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Apple CHUD Tools User Reviews (11 posts)Write A Review
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May 24 2006

JOSHK  Actually in Tiger the stability problems pretty much disappeared. I have nap enabled all the time on my MDD Dual 1GHz and have not had a problem in over a year of heavy ProTools/Digital Performer, Final Cut Pro, Photoshop, or WoW use.   
(Version 4.3.3)

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Oct 9 2007

DALE  I have the exact same machine. Which version of CHUD are you using?  
(Version 4.5)

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Oct 9 2007

MACUPDATE ADMIN  Dale, you do realize that the parent post was posted almost a year and a half ago? And at that time the current version of CHUD was 4.3.3.

The date of the post and the version number which was current at the time of the post is stamped onto the end of the post, as is the case with any and all posts in the reviews section at MacUpdate.  
(Version 4.5)

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Oct 13 2005

TOMIS  Yea! The Processor Palette (accessible from the Processor menuextra) doesn't throw an exception now!

Right on Apple!  
(Version 4.22)

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Jun 10 2005

ANONYMOUS  I have a Dual 1.25GHz mirrored door PowerMac G4. Under Panther, I could use the CHUD tools to put the processor in a nap mode, which kept the processor running substantially cooler. With Tiger, the CHUD tool won't allow me to select "Allow Nap"  
(Version 4.2a15)

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Jul 11 2005

HACKIT98  Use the 3.x version of CHUD to still be able to enable Nap Mode. I use it on my Dual 1.25 G4 with no problems. If you haven't, create an applescript to enable it on boot.  
(Version 4.2a15)

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Oct 26 2005

HENRIK  I can confirm this. Downgrading to 3.5.2 put back the 'allow nap' option. Get it at ftp://ftp.apple.com/developer/Tool_Chest/Testing_-_Debugging/Performance_tools/  
(Version 4.22)

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Feb 10 2006

UMAROMC  I would not recommend this as putting the G4 in nap mode was eliminated because it caused system-wide freezes and kernel panicks.

A safer option is to edit Apple's CPU fan kernel extension's Property List fan table to speed up to higher RPMs at lower temperatures— CHUD tools or not I never run above 119°F with my settings.

Here's more info (it's a Google-cached page since the original doesn't seem to be up anymore):

http://64.233.161.104/search?q=cache:FrNbfQyBy1YJ:homepage.mac.com/paul74/MDDFanExtensionMod.htm+fan-speed-table&hl=en&client=firefox-a%20target=nw

BTW- I've a MDD G4 as well and this works perfectly...  
(Version 4.3.2)

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Jan 5 2005

ZEB  Does anyone know if this version, 4.0.2, allows you to turn NAP on and off in Hardware prefs? Turning off NAP seems to be the only fix for a squeeling PSU in G5's.  
(Version 4.0.2)

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Jan 12 2005

THEL  I can't say re: 4.0.2 - I'm still downloading the installer - but 4.0.1's "Processor" pref pane has a Nap checkbox for on & off switching here. (My Mac is the May '03 1 GHz G4 eMac Combo model, in case that makes any difference...?)  
(Version 4.0.2)

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Mar 8 2005

ZEN TAXI  Yes, The NAP on/off switch is still there!  
(Version 4.1)

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Mar 8 2005

ANONYMOUS  ummm does no one use this for its intended purpose/?  
(Version 4.1)

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Mar 8 2005

TNH  sure, but asking about nap is kinda relevant as Nap wouldn't stick in the last release. Of course people do use it for things it wasn't intended for because it's useful. So I'll ask. Does nap stick in the prefs now on restarts or do I have to keep checking?  
(Version 4.1)

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Mar 9 2005

ANONYMOUS  perhaps it doesn't stick because it's not meant to stick, because CHUD's intended purpose is performance testing of software, not altering your hardware parameters.  
(Version 4.1)

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Jun 28 2005

ANONYMOUS  If Apple helped us keep our processors from overheating there would be no need to use it for anything else.  
(Version 4.2a15)

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Sep 24 2005

ANONYMOUS  >perhaps it doesn't stick because it's not meant to stick, because CHUD's intended purpose is performance testing of software, not altering your hardware parameters. (3/9/2005, Version: 4.1)

If Apple managed to make chirp-free PSUs, there's be no point in using it other than its intended purpose.  
(Version 4.22)

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Oct 19 2004
*****

ANONYMOUS  The CHUD tools are great, especially Shark. Just open Shark up, start some executable, and tell Shark to start sampling. You instantly find out what are the hot loops, load/store problems, etc.

One minor warning about the update: If previously you double-clicked on a source-code line number in the profile view to see Shark's annotations to your source, you'll be disappointed. This feature isn't working in Shark 4.  
(Version 4.0)

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Aug 27 2004

JACQUES  After installing CHUD 4.0b6 on my G4 OS 10.3.5, the G4 was unable to boot! I disovered that the next day and my automatic back up app had already cloned the main drive on the back up drive. The back up drive was unable to boot too.

I had to reinstall the OS from DVD, update it, etc.

A nightmare.

I reinstalled CHUD on the back up drive just to verify -> unable to boot again.

Thanks CHUD.  
(Version 4.0b6)

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Mar 9 2005

ANONYMOUS  Of course, being the well trained developer that you are, you knew better than to install a beta, that is what the b stands for in the version number, on your primary patition. Right? Didn't think so.  
(Version 4.1)

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Apr 11 2005

ANONYMOUS  Of course not. I also run the Tiger beta and call Apple support constantly to complain about whats not ready yet.  
(Version 4.1.1)

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Apr 11 2005

ANONYMOUS  Oh, please.

I've had CHUD tools installed since who knows when. No problems here. (G3 iBook, OS X 10.3.8 currently)

Proper and preventive maintenance, anyone?  
(Version 4.1.1)

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Aug 14 2004

ANONYMOUS  No support for dual 867 MHz....  
(Version 4.0b6)

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Jan 14 2005

ANONYMOUS  no support for what?  
(Version 4.0.2)

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Aug 7 2004

ANONYMOUS  Huhhuhh, Huhhhih, I've got CHUD.

You disable nap, in the System Prefs, at the bottom where the new module is loaded, after you install CHUD.

Personally, I've got a Dual 1.8 and it does NOT have the noise problem. Is it possible Apple did a quite revision? Or am I just lucky?  
(Version 4.0b5)

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Jan 21 2004
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ANONYMOUS  I dunno anything about its uses for developing, but it does help with the oscilating buzzing noise (obn) with the new Powermac G5s  
(Version 3.0.4)

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Jan 28 2004

LORO  i just downloaded the application , ih ave a g5 too, can you tell me how you use the application to reduce the noise with g5

thanks for your time  
(Version 3.0.4)

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May 16 2004

CAPN HACK  turning off "nap" mode for your processors is what is said to fix the noise issue with some g5s. it will make the processors run hotter tho, so if you can bear to hear that noise sometimes then its a good idea to put nap back on (especially those times when youre using your processors heavily).

turning off the second processor will also slow the fans and reduce noise  
(Version 3.5.1)

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Aug 10 2004

ANONYMOUS  why do people spend thousands of dollars on computer hardware, then immediately set about destroying it like this?  
(Version 4.0b6)

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Jan 20 2004
****.

ANONYMOUS  With a name like CHUD, how could it be bad?!?  
(Version 3.0.4)

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Jan 20 2004
*****

KUWAN.NET  These are the best set of performance tools that money can't buy. Shark is the best profiler that I have ever used and blows the socks off of Metrowerks' $3000 CodeTEST product. I just got back from an Apple performance workshop where they showed us how to use their tools and they are by far the best kept secret of Mac OS X development.

Shark (the profiler) will integrate with your application's source code (assuming debugging symbols are turned on) with both Mach-o and CFM (Shark used to not work with CFM, but the latest versions do). It lets you know when you've caused the processor to stall, when you're data is not aligned, etc. and it tells you how to fix it! Apple could easily charge $1000 for these tools and they would be worth every penny. The fact that they are free is a testament to Apple's devotion to providing developers with the best tools that are available.  
(Version 3.0.4)

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Jul 1 2004

GOSTCODER  There's no level of graciousness on Apple's part here. It's a testiment to how badly Apple needs developers to move to MacOS X.

This doesn't reduce the quality of the developer tools. But, understand the real reasoning behind their being free befor you get too glossy-eyed over Apple.  
(Version 4.0b1)

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Jul 3 2004

ANONYMOUS  Well, it is all in the eye of the beholder.

I (as a commercial developer for a few platforms) would view it as a serious commitment of Apple for performance - both for internal use for OS optimization as well as making sure that 3:rd party apps are up to the task.  
(Version 4.0b1)

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Jan 14 2005

ANONYMOUS  What developers haven't/hadn't already moved to OSX?  
(Version 4.0.2)

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