more CPU being used than I have (?)

2011-01-24 Thread Chad Perrin
I'm running a two-core laptop that, once in a great while, shows approximately 250% CPU usage by a single process in top. How exactly does that work? Note: It's not entirely surprising that this particular process is consuming a lot of resources. It's just surprising to me that it's consuming mo

Re: more CPU being used than I have (?)

2011-01-24 Thread Craig Butler
On Mon, 2011-01-24 at 16:57 -0700, Chad Perrin wrote: > I'm running a two-core laptop that, once in a great while, shows > approximately 250% CPU usage by a single process in top. How exactly > does that work? > > Note: It's not entirely surprising that this particular process is > consuming a lo

Re: more CPU being used than I have (?)

2011-01-24 Thread Chad Perrin
On Tue, Jan 25, 2011 at 01:02:46AM +, Craig Butler wrote: > On Mon, 2011-01-24 at 16:57 -0700, Chad Perrin wrote: > > I'm running a two-core laptop that, once in a great while, shows > > approximately 250% CPU usage by a single process in top. How exactly > > does that work? > > > > Note: It'

Re: more CPU being used than I have (?)

2011-01-25 Thread Dmitri Brengauz
On Mon, Jan 24, 2011 at 8:07 PM, Chad Perrin wrote: > On Tue, Jan 25, 2011 at 01:02:46AM +, Craig Butler wrote: > > On Mon, 2011-01-24 at 16:57 -0700, Chad Perrin wrote: > > > I'm running a two-core laptop that, once in a great while, shows > > > approximately 250% CPU usage by a single proce

Re: more CPU being used than I have (?)

2011-01-25 Thread Chad Perrin
On Tue, Jan 25, 2011 at 06:20:02AM -0700, Dmitri Brengauz wrote: > On Mon, Jan 24, 2011 at 8:07 PM, Chad Perrin wrote: > > > > Do you have a reference to a relatively simple explanation of how that > > weighting works (and why)? > > man 1 ps: > > %cpu The CPU utilization of the process; thi

Re: more CPU being used than I have (?)

2011-01-26 Thread Craig Butler
On Tue, 2011-01-25 at 11:36 -0700, Chad Perrin wrote: > On Tue, Jan 25, 2011 at 06:20:02AM -0700, Dmitri Brengauz wrote: > > On Mon, Jan 24, 2011 at 8:07 PM, Chad Perrin wrote: > > > > > > Do you have a reference to a relatively simple explanation of how that > > > weighting works (and why)? > >

Re: more CPU being used than I have (?)

2011-01-26 Thread Craig Butler
> > > > > > %cpu The CPU utilization of the process; this is a decaying average > > > over up to a minute of previous (real) time. Since the time > > > base over which this is computed varies (since processes may be > > > very young) it is possible for the sum of all %cpu fields to > > > ex

Re: more CPU being used than I have (?)

2011-01-26 Thread Chad Perrin
On Wed, Jan 26, 2011 at 02:32:32PM +, Craig Butler wrote: > > ASK GOOGLE !!! I DID !!! I must have used a less effective search string than you. -- Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ] pgpdNhUwIyzx4.pgp Description: PGP signature