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Windows 7: Copying large files consumes too much memory


29 Dec 2009   #1

Windows 7 x64 Ultimate N
 
 
Copying large files consumes too much memory

Hi,
I have problem.
When I'm copying large files from from C disc to D disc (two phisical hdd drives) it consumer all my free memory. First it starts really fast, transfer rate is cca. 80-90MB/s, and when it fills all avaliable memory (I'm monitoring task manager) then it starts to slow, to 10-20MB/s till copying is finished. During that time working anything else in windows is almost impossible as everything is very slow. Strange thing is, when I'm copying reverse from D disc to C disk everything is as it should be, during copying transfer rate stays at 80-90MB/s, it consumes some 200-300MB of memory, and windows response is statisfying. I have a fresh installed Windows 7, before that I have XP.
My hardware: MBO GigabyteGA-MA790GP-DS4H, CPU AMD 940, RAM 2x2GB kingston, HDD 2xWD green 10EADS
Software: Windows 7 ultimate N

Thanks

My System SpecsSystem Spec
.

29 Dec 2009   #2

Windows 7
 
 

What is the file system of the C and D drives?

Where is your temp directory?

How much free space on both drives?

What command are you using to copy the file?

How are the drives attached? (IDE, SCSI, USB, etc)

Regards,
Greg Oliver
ISV Architect Evangelist
Microsoft Corporation
My System SpecsSystem Spec
29 Dec 2009   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Try the memory diagnostic test, in search type windows memory dia... See what happens.
My System SpecsSystem Spec
.


29 Dec 2009   #4

Windows 7 x64 Ultimate N
 
 

Quote   Quote: Originally Posted by ISVDevelopers View Post
What is the file system of the C and D drives?

Where is your temp directory?

How much free space on both drives?

What command are you using to copy the file?

How are the drives attached? (IDE, SCSI, USB, etc)

Regards,
Greg Oliver
ISV Architect Evangelist
Microsoft Corporation
File system: NTFS on both drives
Temp dir: od D disc set to 2048MB (also tried default settings)
Free space: C drive=700GB, D drive=200GB
Total commander 7.50a (but tried also with windows explorer, same thing happens)
Drives attached via SATA controller on board

All windows updates applied,
Antivirus sw: ESET NOD32 4.0.474.0
My System SpecsSystem Spec
29 Dec 2009   #5

Windows 7 x64 Ultimate N
 
 

Quote   Quote: Originally Posted by richc46 View Post
Try the memory diagnostic test, in search type windows memory dia... See what happens.
Thanks for suggestion, test runned, diagnostic tool said everything is OK with memory
My System SpecsSystem Spec
29 Dec 2009   #6

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Next time it happens type event viewer in search. Find out if you can spot anything. Take a look at your perfomance montior when the problem happens.
My System SpecsSystem Spec
29 Dec 2009   #7

win7 Home Premium 64bit
 
 

I'd think Nod32 Antivirus is scanning those xfering file[s] thus slowing everything down.

Try disabling Nod32 [r-click icon near clock - turn off 'antivirus/antispyware']

transfer big file[s] and once completed remember to restart Nod32 protection
My System SpecsSystem Spec
29 Dec 2009   #8

 

Using a synchronisation program will not rely on the same memory intensive processes and will drastically improve performance from your system when you need to transfer files between drives
My System SpecsSystem Spec
30 Dec 2009   #9

Windows 7 x64 Ultimate N
 
 

Quote   Quote: Originally Posted by richc46 View Post
Next time it happens type event viewer in search. Find out if you can spot anything. Take a look at your perfomance montior when the problem happens.
Huh, in event viewer is a large amount of data that I don't know how to interpret. Same goes for performance monitor, nothing there that catch my eye.

Quote   Quote: Originally Posted by GrandPaFred View Post
I'd think Nod32 Antivirus is scanning those xfering file[s] thus slowing everything down.

Try disabling Nod32 [r-click icon near clock - turn off 'antivirus/antispyware']

transfer big file[s] and once completed remember to restart Nod32 protection
Already tried disabling file protection in NOD32, that's not the problem. Or maybe should I try to uninstall NOD32?
My System SpecsSystem Spec
30 Dec 2009   #10

Windows 7 Ultimate x64
 
 

Does using Microsoft SyncToy 2.1 also produce this memory usage problem?
My System SpecsSystem Spec
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 Copying large files consumes too much memory




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