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QBical
Registered User


Joined: 04 May 2003
Location: Utrecht , The Netherlands
PostPosted: Mon Mar 27 2006 19:30    
Madtrackers CPU meter
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Ey,

I'm having some mayor difficulty's atm, I'm listening to some modules that use VST's and even the ones with just 3 to 5 are causing madtracker to completly screw up the sound.
The CPU meter is constantly at MAX and won't go down, but in my taskmanager it only gives a 50% cpu load or less, so why won't madtracker make use of this 50 % extra power to play the tracks right...

Hoping this can be fixed soon...


PC: P4 HT 3ghz, 1gb ram, 500GB+ Storage, plextor DVD-rw, M-audo Audiophile 2496
Laptop: Apple Powerbook G4 15inch
Other Stuff: Phonic MU802 mixer, Alesis M1 Active Mk2 Monitors, Ipod 2nd gen. 20GB, maxtor firewire HD 80GB
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Inge
Man-At-Arms


Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
PostPosted: Mon Mar 27 2006 21:04    
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Do you use the HT-optimized engine in MadTrackers options? Might bottleneck your cpu due to hyperthreading.


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QBical
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Joined: 04 May 2003
Location: Utrecht , The Netherlands
PostPosted: Mon Mar 27 2006 21:05    
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yeah it's checked but greyed out, so I can't uncheck it.


PC: P4 HT 3ghz, 1gb ram, 500GB+ Storage, plextor DVD-rw, M-audo Audiophile 2496
Laptop: Apple Powerbook G4 15inch
Other Stuff: Phonic MU802 mixer, Alesis M1 Active Mk2 Monitors, Ipod 2nd gen. 20GB, maxtor firewire HD 80GB
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Inge
Man-At-Arms


Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
PostPosted: Mon Mar 27 2006 21:09    
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Haha. That's a cute bug. It gets greyed out once you activate the option. I'm going to query Yannick about this.


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Yannick
MadTracker Author


Joined: 16 Apr 2003
Location: Belgium
PostPosted: Mon Mar 27 2006 21:10    
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Greyed-out means the experimental engine is not active. So the HT option has no effect.

Yannick
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Inge
Man-At-Arms


Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
PostPosted: Mon Mar 27 2006 21:12    
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No. The problem is a bit different, although due to my own stupidity. If the option 'new engine' is disabled, and you enable 'mp and ht support', then this option becomes enables and greyed out.

Qbical: enable 'new engine', then disable 'mp and ht support', and then disable 'new engine'.


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QBical
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Joined: 04 May 2003
Location: Utrecht , The Netherlands
PostPosted: Tue Mar 28 2006 12:43    
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Well i have unchecked the option now, and it does seem a little bit better but not very much, the cpu meter in the task manager still go's up to 50 % and madtracker is maxed out...
Will there be support for dual core processors in the future, because I'm about to update my pc.


PC: P4 HT 3ghz, 1gb ram, 500GB+ Storage, plextor DVD-rw, M-audo Audiophile 2496
Laptop: Apple Powerbook G4 15inch
Other Stuff: Phonic MU802 mixer, Alesis M1 Active Mk2 Monitors, Ipod 2nd gen. 20GB, maxtor firewire HD 80GB
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Pablo
User


Joined: 22 Feb 2006
Location: Netherlands, Nijmegen
PostPosted: Tue Mar 28 2006 12:55    
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Since u have a HT P4, actualy 50% means 100% in regular/single cpu's. Windows interprets the HT as it were a dualcore/dual cpu system. Since this is actualy not true and MT does not support it completely/natively, windows only shows that it is using one cpu at max(=50%) but it is actualy running at 100%.
HT is a great blown up thing...the optimalisation regularly only gives u 5% performance boost and only on (actualy badly written) special HT software gives u more than that.
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Inge
Man-At-Arms


Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
PostPosted: Tue Mar 28 2006 13:10    
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...which is why hyperthreading will be removed from Intel's future cpu-plans, especially since in certain cases it downgraded performance.

Pablo: I didn't know that software could be tricked into thinking that only half of the cpu-power was used if HT is enabled. Thanks for that. Do you happen to have a website address that explains this further?


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Yannick
MadTracker Author


Joined: 16 Apr 2003
Location: Belgium
PostPosted: Tue Mar 28 2006 13:16    
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Software do not think they use 50% only. But if it uses 100% of a virtual CPU (which happened for QBical it seems), the task manager will report 50% of CPU usage. It's exactly the same on my system (dual AMD). If an application doesn't support SMP/HT it can only use 50% of the CPU resources.

Yannick
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Pablo
User


Joined: 22 Feb 2006
Location: Netherlands, Nijmegen
PostPosted: Tue Mar 28 2006 13:21    
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Indeed Yannick that's the right answer,
For Inge, here are some pages on "your own" site Wink i know they are in dutch but that schould't be a problem for al the ones how live on this post.
http://tweakers.net/nieuws/23708/?highlight=Hyper+Threading
http://tweakers.net/nieuws/34494/?highlight=Hyper+Threading
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Inge
Man-At-Arms


Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
PostPosted: Tue Mar 28 2006 13:40    
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Thanks. Love to read articles from my work while at work Smile


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