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Windows 7: Enormous speed variance

28 Jan 2014   #1
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 
Enormous speed variance

On my Asus Transformer tablet I was making a Macrium image to a 32GB MicoSD card. During the run I observed transfer speeds ranging from 90Mb/sec to 210Mb/sec. That is more than 100% speed variance. I have no clue why that is so - do you ?


My System SpecsSystem Spec
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30 Jan 2014   #2
andrew129260

Windows 10 Pro
 
 

What kind of files were being transferred? For example documents and others will transfer at a faster pace vs videos etc.

So maybe when the image was being made it was on the documents section and then started transferring videos.

My guess anyways...
My System SpecsSystem Spec
30 Jan 2014   #3
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

It was a system image. There really are no documents on the system yet - apart from a dozen pictures. I just wanted to have this first image after the initial installation, all updates, installation of Office and a few programs.

Doing it on the MicroSD card is handy because that always travels with the tablet. And for the recovery program, I have a stick. I might create an RE for the recovery program but I am not sure whether I like that extra step with each boot.
My System SpecsSystem Spec
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30 Jan 2014   #4
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

I've noticed big transfer speed differences too, but I have no idea why. In my experience it run very fast in the beginning and drops from there. I have thought maybe it's due to a buffer or cache being filled and emptied.
My System SpecsSystem Spec
30 Jan 2014   #5
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

In my case it was just the other way around. First slow at abour 90Mb/sec. Then it went up to 210Mb/sec and finally it settled around 130Mb/sec. Very peculiar.
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 Enormous speed variance




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