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pennyforthought
Joined: 05 Mar 2017
Posts: 4
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 Posted: Sun Mar 05, 2017 3:54 am Post subject: Ice Ecc bugs - CPU usage not full |
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Without setting options to 50% CPU Usage, my cpu usage is only at 50% ~ 60%.
When i set the options to 50% CPU usage, it drops down to 23%.
And also, i notice that it is using around 4 cores.
Please advice... I am using Ice-Ecc v.2.7.
My Computer spec are the following:
CPU: FX 8350
Ram: 16GB |
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ICE Graphics
Site Admin
Joined: 31 Mar 2003
Posts: 431
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| Posted: Sun Mar 05, 2017 8:21 am Post subject: Re: Ice Ecc bugs - CPU usage not full |
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| This is not bug. There are multiple tasks witch need to do simultaneously. Some of them almost do not use CPU. For example, it's a file operations. Sometimes, ICE ECC calculate codes faster than read data files from HDD. In this is situation CPU utilization will be low. |
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pennyforthought
Joined: 05 Mar 2017
Posts: 4
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| Posted: Mon Mar 06, 2017 12:22 pm Post subject: |
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Even with SSD? 
What the factors that is usually the bottomneck the software?
PS. I am a newbie in this..  |
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ICE Graphics
Site Admin
Joined: 31 Mar 2003
Posts: 431
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| Posted: Tue Mar 07, 2017 9:01 am Post subject: |
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| pennyforthought wrote: | | Even with SSD? |
HDD was selected as the most simple example. Really much more complicated.
| pennyforthought wrote: | | What the factors that is usually the bottomneck the software? |
There is not bottomneck in software. I can easy make test, with high percent redundancy in ICE ECC, then will be almost 100% CPU utilization for 4 cpu cores.
It's pure hardware bottomneck. The second bottomneck after HDD is RAM. A mean not only simple bandwidth, but also bandwidth linked with cache coherence.
| pennyforthought wrote: | | PS. I am a newbie in this.. |
I studied of creating effective multi-processor kernel. So I can safely say. It's not you newbie in this question. Very few of those who understand how a real multiprocessor system works. One simple phrase "cache coherence" for multiple CPU makes this question very difficult to understand. |
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