Pages: [1]
michaelmastro
 
BAM!ID: 53157
Joined: 2008-05-27
Posts: 46
Credits: 66,985,409
World-rank: 14,106

2009-06-01 03:08:00

My iMac reports that all Boinc projects utilize up to 98% of each of the two processors. My Vista laptop reports never more than 50%. Is this the basic difference between mac and pc processors, or...?
noderaser
 
BAM!ID: 13859
Joined: 2006-12-03
Posts: 835
Credits: 254,540,737
World-rank: 5,627

2009-06-01 05:33:26

It sounds like you have different preferences set on each machine, or the preferences are interpreted differently... What kind of processor does either machine have?

IMHO, 50% on your laptop is probably right where you want it because of heat dissipation issues. I run 100% only on my desktops, and 50% on my laptop--killed one a few years ago when running at 100%. Melted some of the plastic, and killed some of the components near the CPU. It was a mess, and since then I don't trust all that heat in such a small space.
Gundolf Jahn
 
BAM!ID: 16586
Joined: 2007-01-07
Posts: 469
Credits: 447,470
World-rank: 321,396

2009-06-01 09:24:34

michaelmastro wrote:
My iMac reports that all Boinc projects utilize up to 98% of each of the two processors. My Vista laptop reports never more than 50%. Is this the basic difference between mac and pc processors, or...?

I don't have an iMac and no multi-core machine either, but I think it's only the point of view:
the iMac reports percentage per core, Windows per system. I.e. each core contributes 50% of the system power, which results in 100% :-)

Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
Rytis
Forum moderator - Developer - Translator
BAM!ID: 6
Joined: 2006-01-10
Posts: 234
Credits: 127,638,247
World-rank: 9,043

2009-06-02 14:09:48

If your host has two cores, and you look in the processes list in Windows task manager, 50% means that it is using a full core. Mac probably identifies usage as 100% == 1 full core.
michaelmastro
 
BAM!ID: 53157
Joined: 2008-05-27
Posts: 46
Credits: 66,985,409
World-rank: 14,106

2009-06-02 14:21:14

Rytis wrote:
If your host has two cores, and you look in the processes list in Windows task manager, 50% means that it is using a full core. Mac probably identifies usage as 100% == 1 full core.


Now that makes sense. Thanks to all for the input...
Guest

2009-06-02 15:46:10

Rytis wrote:
If your host has two cores, and you look in the processes list in Windows task manager, 50% means that it is using a full core. Mac probably identifies usage as 100% == 1 full core.


and on a slightly used V8-server you will see up to 192 hours on the idle-process each day.

windoze task-manager is core-orientated, not machine....
Pages: [1]

Index :: BOINC :: Mac vs Vista CPU usage
Reason: