Interesting Stuff about Heat, Whining, and CPU

This whining noise with my new macbook pro has had me (and many others) stumped. I still havent found a solution, but I've gathered some interesting data with a great program found here: http://www.bresink.de/osx/TemperatureMonitor.html.
First, for those more worried about the heat, new MacBook Pros do not seem to have a heat problem (at least mine doesn't). Mine runs cooler on my lap than on my desk for some weird reason though. About 50 C on the desk and 40 or so on my lap. (I had posted in another topic that the laptop felt hotter on my lap, but after letting the unit sleep for awhile, then running it on my desk and then on my lap, Bresink's temperature monitor confirms the temperatures, which could be due to the vent design or my owning a crappy desk lol.)
Second, the System Information window shows my MacBook Pro as being manufactured on 4/14/06, so new revisions obviously did not fix the whining issue.
Third, the System Information window reports that the CPU does NOT have variable speed (***?) and shows it to be running at 1.83 ghz all the time regardless of power management settings or AC/battery power. Anyone else find this strange? Both the nominal CPU clock and the actual CPU clock are always at 1.83 ghz according to this program.

Another interesting information about the whine and why it, for some of the users who have a whining MBP, didn't occur on WinXP SP2:
MS KB918005 "Battery power may drain more quickly than you expect on a Windows XP SP2-based portable computer" ( http://support.microsoft.com/kb/918005/en-us )
After applying this fix, which fix a power drain due to bad power management in WinXP SP2, a user reported on onmac.net forum ( http://forum.onmac.net/showthread.php?t=1214 ) that his MacBook Pro started to whine on WinXP.
This confirm what said the former intel engineer who posted on this forum at the beginning of the talks about this issue. This fix will also likely make other notebook PCs whine.
So apparently MacOS X do manage the power correctly, and the fact that the whine didn't appear on WinXP SP2 was because of not using the CPU power states in which the whine appear (C4 power state for example). So the fact of no whine under WinXP SP2 on MacBook Pro was because of a bug in WinXP SP2 CPU power management states.
So apparently the former intel guy who posted here was right and so if we assume that all what he said was right, then he also said that there is not hardware way to be sure that all computer produced are whine free (because of the nature of the components used), but that, by using component of better quality, it can be reduced for the units which are unluckily not whine free.
Considering that thing, it's unlikly that a software update can remove the whine issue without reducing the battery life, and as latest user report seems to indicate that the recents series of MBP have a quieter whine, I HIGHLY RECOMMEND PEOPLE WHO DO HAVE A LOUD WHINING MBP TO SEND IT TO APPLE, IN ORDER TO GET THE LOGIC BOARD REPLACED BY A RECENT ONE!

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Needed info about io devices and cpu without using prtdiag

Hi
I need to collect info about io devices and cpu. but i cannot use prtdiag.
is there any way to collect this information on solaris machine....
may any available c APIs
Thanks in advance.
Nagesh

yep.... prtconf -vp | grep <wot u r looking 4>

About "disk utilization" and "cpu utlization"

I am writing an agent with snmp protocol. I want to konw the system's current "cpu utilization and disk utilization". But I have no choice now but use the system call:"df -k" and "vmstat". Can ANYONE show me another way??

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Thanks,
Prajeesh

Interesting finding about the whining noise

Hi,
I have like many others here a new MBP 2.0 with the whining noise. I have spent 2 to 3 hours those last 2 days with several support persons struggling for having the repair box shipped to me as repair seems the only option for me (I dont want and cannot wait 3 weeks more to get another MBP). FYI they were unable to take care of my correct address....Hmm not very good.
I have also done two interesting tests today:
1) I am part of the ADC and can have access to the latest builds of MacOSX. I have downloaded the current 10.4.6 build (8I1113) and installed it on another partition. I confirm that in this build, the whining noise is still present on my MBP.
2) I have also tested the Ubuntu Live CD (http://www.mactel-linux.org/wiki/Main_Page) and I was REALLY surprised not to hear any whining noise after ejecting the CD from the superdrive.
So my gut feeling is that the whining noise is probably a software issue rather than a hardware issue.
It could be interesting to get some feedback of people running Windoz on the MBP to check if they have also the whining noise in that case.
Any feedback ?
Fabrice
MacBook Pro 2.0 / 1Gb / 120 Gb + PowerBook G4 1.67 HD (I am selling this one) Mac OS X (10.4.5)

Seriously. do you even look at other threads before you post? lol. the whine that occurs the most has been diagnosed as a software problem. there have been many threads with ways to work around this problem. a couple links to threads that have software links or software suggestions in them are:
http://discussions.apple.com/thread.jspa?threadID=409785&tstart=0
http://discussions.apple.com/thread.jspa?threadID=387579&tstart=0
a very popular thread is: http://discussions.apple.com/thread.jspa?threadID=374397&tstart=45
and another site that provides a crude/ yet effective solution is:
http://www.red-sweater.com/blog/105/all-work-and-no-play-makes-a-very-quiet-macb ook-pro
i hope i helped
iBook G4, 1.07 Ghz, 512 MB, 133 Mhz Bus Speed Mac OS X (10.3.9) MBP 2.0 GHz 2 GB soon to become MINE

Is anyone having problems with the battery heating up and draining the power? Mine has been doing this for about 2 months now.

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When I go to About This Mac and click on Storage it shows 421.93GB as Other. This only leaves 46.85GB of 499.25GB free. How do I find out what this "Other" is so I can remove the stuff I don't need?

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What kind of use do you make of your MBP? A lot of photo or video? If so, you may be storing a lot of large files. Look at Finder and see what the file system looks like. Do you have large libraries of data files associated with applications?
You may want to think about an external hard drive to use for backups and data storage, you can point applications to the external drive as the default storage location.
A good source of external drives at a reasonable price is the Mac specialist, OWC, http://www.macsales.com
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If i upgrade to mountain lion (from lion), will i need to reinstall my windows VM? and what about my apps and other stuff? will those need to be reinstalled too?

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I started off with problems about being in the wrong region and now have Plug- in Failure
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How can I keep my MacBook Pro from heating up and crashing when I play Sims 3?

I have a MacBook Pro that is only about 9 monthes old. When I play Sims 3 on my computer it heats up very quickly. I can get about an hour of game play before the computer becomes slow and extremely hot. Then cetain parts of the screen turn white untill the whole screen turns white and a message appears saying something about an error happening. I am not sure if it has something to do with the computer heating up or if it's a EA problem. But if anyone has had a similar experience and knows how to fix it, that would be great. Also, any tips on how to keep my computer cool while playing games or watching movies would be great.
Thank you!

Your computer is going to run hot while playing CPU/GPU intensive games - it should heat up and the fans should be noticably loud. As to why it's 'crashing' - can you post a kernel panic log? You may have some third-party kexts that are causing the problems.
Clinton

Hyper-V Resource Pools for Memory and CPU

Hi all,
I'm trying to understand the concepts and details of resource pools in Hyper-V in Windows Server 2012. It seems as if there is almost no documentation on all that. Perhaps somebody can support me here, maybe I've not seen some docs yet.
So far, I learned that resource pools in their current implementation serve mainly for metering purposes. You can create pools per tenant and then group VM resources into those pools to facilitate resource metering per tenant. That is, you enable metering
once per pool and get all the data necessary to bill that one customer for all their resources (without metering individual VMs). Is that correct?
Furthermore, it seems to me that an ethernet pool goes one step further by providing an abstraction level for virtual switches. As far as I've understood you can add multiple vSwitches to a pool and then connect a VM to the pool. Hyper-V then decides which
actual switch to use. This may be handy in a multi-host environment if vSwitches on different hosts use different names although they connect to the same network. Is that correct?
So - talking about actually managing that stuff I've learned how to create a pool and how to add VHD locations and virtual switches to a pool. Enabling resource metering for a pool then collects usage data from all the resources inside that pool.
But now: I can create a pool for memory and a pool for CPU. But I cannot add resources to those. Neither can I add a complete VM to a pool. Now I'm launching a VM that belongs to a customer whose resources I'm metering. How will Hyper-V know that it's
supposed to collect data on CPU and memory usage for that VM?
Am I missing something here? Or is pool-based metering only good for ethernet and VHD resources, and CPU and memory still need to be metered per VM?
Thanks for clarification,
Nils
Nils Kaczenski
MVP Directory Services
Hannover, Germany

Thank you for the links. I already knew those, and unfortunately they are not matching my question. Two of them are about Windows Server 2008/R2, and one only lists a WMI interface. What I'm after is a new feature in Windows Server 2012, and I need conceptional
information.
Thanks for the research anyway. I appreciate that a lot!
In the meantime I've gotten quite far in my own research. See my entry above of January 7th. Some additions:
In Windows Server 2012, Hyper-V resource pools are mainly for metering purposes. You cannot compare them to resource pools in VMware.
A resource pool in Hyper-V (2012) facilitates resource metering and billing for VM usage especially in hosting scenarios. You can either measure resource usage for single VMs, or you can group existing resources (such as CPU power, RAM, virtual hard disk
storage, Ethernet traffic) into pools. Those pools will mostly be assigned to one customer each. That way you can bill the customer for their resource usage in a given time period by just querying the customer's pool.
Metering only collects aggregated data with one value per resource (i.e. overall CPU usage, maximum VHD storage, summed Ethernet traffic and so on). You can control the time period by explicitly resetting the counter at any given time (a day, a week, a
month or what you like).
There is no detailed data. The aggregate values serve as a basis for billing, not as monitoring data. If you need detailed monitoring data use Performance Monitor.
There is currently only one type of resource pool that adds an abstraction layer to a virtualization farm, and that is the Ethernet type. You can use that type for metering, but you can also use it to group a number of virtual switches (that connect to
the same network segment) and then a VM connected to that pool will automatically use an appropriate virtual switch from the pool. You need no longer worry about virtual switch names across multiple hosts as long as all equivalent virtual switches are
added to the pool.
While you can manage two types of pool resources in the GUI (VHD pools and Ethernet pools) you should only manage resource pools via PowerShell. Only there will you be able to control what happens. And only PowerShell provides a means to start, stop, and
reset metering and query metering data.
The process to use resource pools in Hyper-V (2012) in short:
First create a new pool via PowerShell (New-VMResourcePool). (In case of a VHD pool you must specify the VHD storage paths to add to the pool in the moment you create the pool.)
In case of an Ethernet pool add existing virtual switches to the pool (Add-VMSwitch).
Reconfigure existing VMs that you want to measure so that they use resources from the pool. The PowerShell
Set-VM* commands accept a parameter -ResourcePoolName to do that. Example:
Set-VMMemory -VMName APP-02 -ResourcePoolName MyPool1
Start measuring with Enable-VMResourceMetering.
Query collected data as often as you need with Measure-VMResourcePool.
Note that you should specify the pool resource type in the command to get reliable data (see my post above, Jan 7th).
When a metering period (such as a week or a month) has passed, reset the counter to zero with
Reset-VMResourceMetering.
Hope that helps. I consider this the answer to my own question. ;)
Here's some links I collected:
http://itproctology.blogspot.ca/2012/12/hyper-v-resource-pool-introduction.html
http://www.ms4u.info/2012/12/configure-ethernet-resource-pool-in.html
http://blogs.technet.com/b/virtualization/archive/2012/08/16/introduction-to-resource-metering.aspx
http://social.technet.microsoft.com/Forums/en-US/winserverhyperv/thread/1ce4e2b2-8fdd-4f16-8ab6-e1e1da6d07e3
Best wishes, Nils
Nils Kaczenski
MVP Directory Services
Hannover, Germany

What is the CPU usage of X and cpu temp on your Arch?

I just installed the new arch 2009 02. Everything seems to be perfectly out of box, I have lxde DE.
But I noticed that in idle X is using around 2~3% cpu compared to below 1% in the old Arch I had before. It seems there is a little lag in the desktop experience, not obvious though, but not as responsive as my old Arch. Also the cpu temperature under lm_sensors gives me 43 constantly compared to 39 in my old Arch?! This is not some random sample of temperature, I constantly monitored it to realize it indeed runs hotter.
Also, when I open one mplayer, it uses 40% cpu + 20% for X. If I open 2 mplayer, fan will go noisy and cpu hit full and both videos become choppy! This never happened in my old Arch. I search the forum for quite a while, but have not found exactly the reason.
Some help or information? Greatly appreciate it.:D
My Hardware:
Shuttle XPC sn68sg2
Athlon x2 5200+ 2.7Ghz
Corsior 2G Ram
Asus Nvidia Geforce 7600GS
WD 250G x2
Last edited by yingwuzhao (2009-02-21 20:57:51)

Hmm interesting. How old was the "old arch" you are talking about?
Because if it was quite a while ago that you ran Arch and recorded those temperature readings, I might wonder if your hardware is aging or dust is gathering inside your computer case, decreasing air flow and increasing temperature.
My laptop also runs almost constantly around 43 degrees and about the same at X idle. This seems normal to me though.
Last edited by CheesyBeef (2009-02-21 21:12:13)

10.4.9 update and CPU usage up %20, even during idle

I experienced a general slowdown except with file transfers. I am about to give up and rollback to 10.4.8.

I rolled back to 10.4.8 (because all my problems appeared in 10.4.9) and everything speeded up and CPU dropped to under %9 while I type this. I no longer have to type a few words and wait for them to appear. I installed all my third party stuff except Norton antivirus and sidetrack. Any new update is 10.5 so ...
400Mhz Cpu can easily be taxed.
I never had a performance hit with apple updates since the beginning of OX. In fact when I moved from Puma to Jaguar, I experienced the same speedup as a processor upgrade earlier, 300mhz to 500mhz!

Is it bad for Fans and CPU?

Hey guys,
     I'm currently using a mid-2012 15" Retina MacBook Pro with 2.6 GHz + 16GB of ram. I've been really wanting to use the SETI home application. This application basically uses your CPU's power and GPU's power at 100% (unless you're doing something else)
     Obviously, with CPU + GPU at 100%, the fans are going to kick on. My question is, is it bad to run the computer at 100% capacity for GPU and CPU? Will this damage the fans over time?
     I'm talking about leaving the computer on for hours at a time and letting it do its thing. There's a very good chance it will be hot for several hours with the fans on for several hours.
     On a previous Retina MacBook Pro I owned, I tried this and processor reached 212 degrees F (boiling point for water) and 180 F for GPU. Fans were on all the time.
     Is this bad and how bad is it?
Thanks a lot.

You're doing what some could call a burn-in run. Where you get everything hot and sustain that usage for long periods of time. The Mac can handle that, I have used older MBP's for the IT field and they had to process tons of data, they got hot, but I let them cool down at night.
The fans won't get damaged, its a solid-state motor, unless you stick something in the fan...
The thermal paste on the CPU/GPU may degrade quicker though. That is my one hesitation about dedicating this machine to that.
I should note, that the heat and the power consumption is going to take it's toll on your electric bill too.
85 watts * ~6 run hours per day = about $40 more on the bill.

Fan speed and CPU temp

Hi There,
I have MBA 13'' Mid 2011.
I'm little bit concerened about Temp of my CPU which is 96°C, and Fan speed is around 6500rpm.
I can hear my fan all the time.
It was not like this always and i'm kind of sure that something is causing this.
I worked before with lots of apps open (itunes, photoshop, text editor, chrom, mail, parallels..) and fan and temp was not this high.
Is there way to find out what is causing this high usage?
Thanks in advanced

First execute a SMC reset:
http://support.apple.com/kb/HT3964
If no change, install istat menus.
http://bjango.com/mac/istatmenus/
Open Activity Monitor to ALL PROCESSES and CPU. Make certain that CPU displays values from high to low.
Post images of both istat menus and Activity Monitor whe the MBA has heated up.
Ciao.

Hi, I had recently purchased ipad3 and but obviously have been having issues with heating up and some minor issues with video playback etc. Apple has agreed to replace my device. I need help in deciding whether i should get a new ipad3 or opt for ipad2.

Hi, I had recently purchased ipad3 and but obviously have been having issues with heating up and some minor issues with video playback etc. Apple has agreed to replace my device. I need help in deciding whether i should get a new ipad3 or opt for ipad2. Seller is willing to replace it with ipad2 as well..
Have also heard that the ipad3 revamped version is around along with the mini pad rumor..too much information - lot's of confusion pls help

Lindsay,
Your iBookG4 is still a pretty awesome Mac. Like already said, it has the power to run Leopard, but it depends if you have an internal DVD drive.
Then I suppose you have to add up the cost of the OS, perhaps another 512MB RAM, iLife 08 and replacements for any favourite apps that you currently use (Leopard breaks a lot of stuff, but Intel breaks even more). Compare it to the cost of a new MacBook, which wil have all of that included and be 3-4x faster too.
It also depends on what you want to achieve with your iBook. My PMG4 still cuts it today, I still use it in preference to my new Mac Pro, It's about the same age as your iBook, and I'll only stop using it when it becomes "painfully" slow. My 1 year old son currently uses the Mac Pro (parts for a Mac Pro are easier to replace than those for a PMG4).
I think your choice is simple, if you can a cheap copy of Tiger, use that, it'll get your iPod Touch up and running. It came in DVD and 4 CD version (by request).
Leopard will work for you too but a lot of the best eye-candy requires quite a meaty graphics card and you may need a RAM upgrade and replacement software - OS9 Classic is not supported in Leopard.

Loginwindow takes about 20% of the CPU .. not a headless box

I was hunting for slow and busy processes today and found that loginwindow (shows as loginwindo in top) is taking 15-20% CPU all the time. That seems excessive. There's nothing incriminating in any of the logfiles, they are barely moving.
I googled and searched and found stuff about headless macs having issues with loginwindow but nothing about normal laptops having it. This is the latest 10.5 on a 9 month old (Feb 2008) Macbook Pro.
Suggestions?

I've answered my own question - so this is here for anyone facing the same issue. I messed with the display settings and turned off the 'adjust backlight level' and it stopped. Turned it back on and ... the loginwindow process started to use CPU again. Put my hand over the sensor and it stopped.
Behind me is the Christmas tree with bright flashing LEDs. It seems that it changing the ambient light level SO often, that the poor window server is beating itself to death trying to adjust light levels to keep up. Turn that off, it stops. It's doing a damned good job tho .. I really can't tell it's adjusting them.
I really hope this helps someone else some day.
Roland

Interesting Stuff about Heat, Whining, and CPU

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