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  Forum: Sweet Home 3D bar
  Thread: Rendering does not use 100% CPU

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robal
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Rendering does not use 100% CPU
Hi,

It may be an odd question (and maybe better suited to Sunflow's forum), but:

Does anyone experience low CPU usage during rendering ?
When I render, my CPU utilisation is at around 60% (javaw.exe process)
I thought it should be almost 100%, since Sunflow creates a thread for each core.

I've tested this on two machines:
- Core I7 860 (4 cores, 8 threads)
- Phenom II 950 (4 cores, 4 threads)

I'm wondering whether it's something funny about my machines (or my SH3D scene).

Anyone ?
[Mar 4, 2013, 4:28:13 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
Puybaret
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Re: Rendering does not use 100% CPU
What Java version do you use?
Could you try with the installer version and not the Java Web Start version, to see if it behaves the same?
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Emmanuel Puybaret, Sweet Home 3D creator
[Mar 12, 2013, 12:32:24 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
robal
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Re: Rendering does not use 100% CPU
Hi Emmanuel,

I've noticed it first with Beta 4.0 and JRE7, but before making this post I've downloaded standalone 3.7, and it happens there too.

Cheers
[Mar 13, 2013, 1:53:00 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
Puybaret
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Re: Rendering does not use 100% CPU
Would you have any tool that would prevent a program to use all the CPU power?
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Emmanuel Puybaret, Sweet Home 3D creator
[Mar 13, 2013, 1:58:18 PM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
robal
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Re: Rendering does not use 100% CPU
Hi Emmanuel,

I haven't used SH3D for some time recently.

Now I've downloaded version 4.1 and voila ! The issue is gone.
It now uses 100% of CPU to render on my machine and renders almost twice as fast.

Cheers,
[Jun 19, 2013, 10:42:33 AM] Show Printable Version of Post    View Member Profile    Send Private Message [Link] Report threatening or abusive post: please login first  Go to top 
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