Solution 5: Disable CPU core Parking CPU core parking selects a set of processors that should stay idle and not run any threads based on the current power policy and their recent utilization. To check whether all the CPU cores are active, follow the steps. Hit “Win+R” keys together on the keyboard and type “msconfig”. The reference community for Free and Open Source gateware IP cores. Since 1999, OpenCores is the most prominent online community for the development of gateware IP (Intellectual Properties) Cores. It is the place where such cores are shared and promoted in the spirit of Free and Open Source collaboration. CPU Core Parking. CPU Core parking is a feature that was introduced in Windows Server 2008 R2. The processor power management (PPM) engine and the scheduler work together to dynamically adjust the number of cores that are available to run threads. The PPM engine chooses a minimum number of cores for the threads that will be scheduled. CPU-OS Simulator CPU-OS Simulator is a free program that enables you to run programs manually. DOWNLOAD CPU core parking manager Control the number of CPU cores that need to be enabled or disabled.
This is a rather cool trick that I stumbled upon today by accident. It is a rather simple, Terminal free way, of disabling (and then re-enabling) CPU cores on multi-core CPU Mac’s. Its rather a neat little trick that for me has been pain free. Normally if you want to switch off a core you would have to run a certain Terminal prompt, and possibly restart. This is then usually followed by the kernel going “What the F*&K where’s my CPU core gone!” and prompting exhibiting a kernel panic. Not good.
If you want to access this tool you first need to install the developers tools. I am not sure which installation packet this little tool belongs in. So install them all (the tools are great anyway). If you don’t no how to install the developers tools. Insert the CD navigate to the extra installs, and follow the folders through until you get to the main installer.
The next step is to navigate to Library > Application Support > HWPref > CPUPalette. You will then see the following application. Click the small oval shaped button in the top right to access the preferences.
To disable a core, press that little minus (-) arrow in the bottom right. The core will then switch off. Technically it is not off. There will still be power going to the core. But it is great for developers who need to test applications on one core. Of course if you have a 16 core Mac Pro, you could switch all 15 off. There are a couple of advantages of switching a core off. You probably will save a little bit of power, but not a lot. On the other hand you could actually use more battery life (on a laptop) or more wall power by using one core. This is because you lose the efficiency of two cores, the performance (sinces apps have to wait longer to run). As well as this fact that the core is still live, its just not allowed to be execute any code. This means a greater draw of power. From researching this you may experience kernel panics or instability. Although I have not experienced any of this. Your adventures may differ.
I said at the beginning of this post I stumbled across this idea by accident. From a post by TAUW, mentioned about the eject menu in the menu bar. Although a cool trick, (I wish I found it) I kept playing with the other menu items. One of the items being CPU.menu . If you double click on this file it will load a menu item with the ability to switch on and off cores. This is how I originally found this trick. It actually uses the same program as the one just mentioned. I think along the lines of development some one forgot to program the link between the two.
CPU.menu is a bit temperamental. For example you can double click on the menu item in Finder and nothing happens. Nine out of ten times this happens to me (hence no screen shot). Every so often (after clicking it) it may randomly appear in your menu bar. As well as this iStat Menus either closes or refuses to reload, meaning you have to restart. This is probably a bug in the menu’s code. I have only managed to get this to work once and then I didn’t notice it was there until sometime after.
If you have any experiences with this program of disabling CPU cores leave a comment below. As mentioned you have two ways. The program way, which works 100% of the time. Or the menu bar way, which never seems to work.
Where To Next?
At Miami Myofunctional Therapy we specialize in providing therapy for children and adults with orofacial myofunctional disorders involving behaviors and patterns created by inappropriate muscle function and incorrect habits involving the tongue, lips, jaws and face.
We are excited to offer a Myofunctional Therapy Clinic in Miami. Miami Myofunctional Therapy is an active member of the International Association of Orofacial Myology [IAOM]. The IAOM is an international professional association for orofacial myologists. Visit their international website at www.iaom.com for more information about the history of orofacial myology, research, and frequently asked questions from other patients just like you.
Orofacial Myology, also known as Myofunctional Therapy is a specific type of therapy that works with muscles of the face, jaw, lips and tongue. We design patient specific programs that are implemented to correct tongue thrusting, chewing and swallowing disorders, create a normal freeway space, help stabilize the bite, prevent orthodontic relapse, facilitate nasal breathing, and eliminate noxious oral habits such as thumb-sucking and lip licking.
Orofacial Myofunctional Disorders, also known as OMD’s may have a negative effect on the development and stability of the dentition (teeth). They may also impact oral facial skeletal growth and development, chewing, swallowing, speech, movement of the temporomandibular joint, and stability of orthodontic treatment.
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The goal of Myofunctional Therapy is to correct or improve resting tongue and lip relationships thus allowing normal development of dental eruption and alignment. Therapy is administered to assist in the creation, the restoration, and the maintenance of a normal and harmonious muscle environment. It may also improve muscle tonicity, speech, temporomandibular joint disorder, sleep apnea, mouth-breathing, and facial symmetry.
Research examining various populations found 38% have orofacial myofunctional disorders, with an incidence of 81% found in children exhibiting speech/articulation difficulties.
The International Journal of Orofacial Myology revealed that treatment for orofacial myofunctional disorders can be 80-90% effective in correcting rest posture, swallowing and other oral functions and that these corrections are retained years after completing therapy.
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Miami Myofunctional Therapy works closely with referring partners such as, but not limited to dentists, orthodontists, pediatricians, speech therapists, and sleep doctors. Orofacial Myology is an interdisciplinary approach for total patient care. We focus our therapy on orofacial functional patterns and postures when teeth are apart, which they are for over 95% of each day and night.