Major slowdown when running Silverfast SE Plus

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pintosal
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SilverFast Product: SE Plus

Major slowdown when running Silverfast SE Plus

Postby pintosal » Thu May 04, 2017 5:32 pm

I'm running Silverfast SE 8.8, Version 8.8.0r8, Build number: 17938. I use a Plustek OpticFilm 8100 on 64bit Windows 7

My PC uses a powerful AMD 8-core CPU and has 8Gb RAM. There is plenty of fast disk space.

During scanning, the CPU load is around 5% and using 2Gb RAM.

However, in between actual scanning, the keyboard becomes unresponsive, and it sometimes takes 20 seconds before I can type a new file name. If I try to type anything else, the keyboard is also unresponsive.

When I am not running Silverfast, the system responds perfectly normally.

What can I do to cure this problem?

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LSI_Ketelhohn
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Re: Major slowdown when running Silverfast SE Plus

Postby LSI_Ketelhohn » Fri May 05, 2017 2:25 pm

Dear user,

Window currently has a known issue regarding the multi threading on some systems. Even extremely powerful ones.

Please try the following.
First start SilverFast then:
Press Ctrl+Alt+Del -> Start Task Manager -> Processes Tab -> right click desired program -> Set Affinity
Disable the lowest CPU core

Unfortunately Windows does not store this. So if it helps you will have to do this every time after starting SilverFast.
This by the way can also help with other load intensive apps with which you might be experiencing issues.

Kind regards,
Arne

pintosal
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Posts: 6
Joined: Sun Apr 16, 2017 11:37 am
SilverFast Product: SE Plus

Re: Major slowdown when running Silverfast SE Plus

Postby pintosal » Sun May 07, 2017 4:00 pm

Thanks for that solution which helped with my issue.

I started to do some follow up research, and as you said, Windows 7 does not permanently store the affinity.

However, it is possible to modify the shortcut of a program so that whenever it is launched you can set the affinity and the priority. So it would work every time you launch Silverfast, or for that matter, any other program.

The details an be found here http://www.tech-recipes.com/rx/37272/set-a-programs-affinity-in-windows-7-for-better-performance/

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LSI_Ketelhohn
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Re: Major slowdown when running Silverfast SE Plus

Postby LSI_Ketelhohn » Thu May 11, 2017 2:58 pm

Thank you for your helpful feedback. :-)

Kind regards,
Arne


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