Comments on: iTunes pegged my CPU at over 130%? http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/ the personal blog of Stuart Colville covering modern web development techniques and best practices Thu, 20 Nov 2008 10:02:07 +0000 http://wordpress.org/?v=2.5.1 By: Mark http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-63625 Mark Thu, 18 Oct 2007 12:15:00 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-63625 I have a single core processor (G3 800MHz), and I'm seeing top reporting iTunes using CPU of up to 124%. this is with OSX 10.4. Any ideas why that would be? I have a single core processor (G3 800MHz), and I’m seeing top reporting iTunes using CPU of up to 124%. this is with OSX 10.4. Any ideas why that would be?

]]> By: Stuart Colville http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11347 Stuart Colville Thu, 05 Oct 2006 07:58:54 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11347 @Feaverish, Mackie, Johan, David: Had to be didn't it. Though it would be nice if top reported only up to 100% for a dual core CPU as that would make more sense <acronym title="In My Humble Opinion">imho</acronym>. @Christian: Quite probably! @Feaverish, Mackie, Johan, David: Had to be didn’t it. Though it would be nice if top reported only up to 100% for a dual core CPU as that would make more sense imho.

@Christian: Quite probably!

]]> By: David Emery http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11343 David Emery Thu, 05 Oct 2006 07:18:18 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11343 As you've got a dual processor system, and iTunes is multi-threded, the number can indeed go above 100% - you have 200% to play with. As you’ve got a dual processor system, and iTunes is multi-threded, the number can indeed go above 100% - you have 200% to play with.

]]> By: Johan M http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11342 Johan M Thu, 05 Oct 2006 06:54:24 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11342 The CPU load maximum is per processor (or core). Since your MacBook Pro has two cores, the maximum is 200%. The CPU load maximum is per processor (or core). Since your MacBook Pro has two cores, the maximum is 200%.

]]> By: Chris Heilmann http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11338 Chris Heilmann Thu, 05 Oct 2006 06:11:46 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11338 My guess is that the CPU blushed at the sight of what you store on the iPod. This caused more heating and the system read this as more processing. That's where the wrong number came from. My guess is that the CPU blushed at the sight of what you store on the iPod. This caused more heating and the system read this as more processing. That’s where the wrong number came from.

]]> By: Mackie http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11328 Mackie Thu, 05 Oct 2006 03:38:11 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11328 Apparently with dual processors you can go up to 200%. I found this out after I bought my first dual processor Mac four years ago, and imported lots of things at once in iTunes. Apparently with dual processors you can go up to 200%. I found this out after I bought my first dual processor Mac four years ago, and imported lots of things at once in iTunes.

]]> By: Feaverish http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11318 Feaverish Thu, 05 Oct 2006 01:32:34 +0000 http://muffinresearch.co.uk/archives/2006/10/04/itunes-pegged-my-cpu-at-over-130/#comment-11318 With two cores (or processors) you can get up to 200%. A lot of system monitors (MenuMeters, et al.) average the processor loads and only output up to 100% (which would mean both cores are pegged at 100%, for 200% total). With two cores (or processors) you can get up to 200%. A lot of system monitors (MenuMeters, et al.) average the processor loads and only output up to 100% (which would mean both cores are pegged at 100%, for 200% total).

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