Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: High CPU load when copying files over network


20 Jul 2009   #1

XP & W7
 
 
High CPU load when copying files over network

Hiya,

I've just installed the Windows 7 RC on my lab-pc. It's a 2,4GHz Celeron, 1GB DDR-RAM, everything installend on some old 160GB PATA-HDD. Two hi-speed USB Keys are used for ReadyBoost (love that feature).

Everything works like a charm, except the file transfer from my WXP machine.

I mount the SMB share (which is on my WXP) from the Windows 7 machine and start to copy some big files. Transfer speed is ~1MB/sec on 10MBit, ~5MB/sec on 100MBit and ~11MB/sec on 1GBit. When I start file transfer the CPU load pops up to 50% while 10MBit is active, for 100 and 1000MBit it jumps to 100% and stays there until the transfer is over.

Since I read about IRQ issues I tried some NICs. An onboard SiS-900, an RTL8139 based PCI card and an Intel Pro 1000/MT Desktop adapter. I thought that - at last - the Intel NIC should stop my problems as it comes with IRQ moderation and TCP/UDP checksum offload.

None of these 3 NICs solved my problem.

All these NICs run on the driver Windows 7 has found for them. None of the vendors had a special driver for me.

What I tried to do in addition:

- disable Windows 7 firewall
- disable IPv6
- disable QoS
- tried another CAT5e cable
- restart the switch (Netgear GS108)
- hit the whole machine

Note of the above worked.

I just hope you just have an idea left for me. Just ask if I missed out some details.

My System SpecsSystem Spec
.

22 Jul 2009   #2

XP & W7
 
 

Update: I just found & installed the new Intel Driver V14.2. Didn't help either
My System SpecsSystem Spec
Reply

 High CPU load when copying files over network




Thread Tools



Similar help and support threads for2: High CPU load when copying files over network
Thread Forum
Issues copying files across the network... Network & Sharing
BSOD when copying files via wired network BSOD Help and Support
Trouble copying files to another computer on home network Network & Sharing
Copying files over Win 7 network keeps stalling? Network & Sharing
Trouble copying files over network to other PCs Network & Sharing
High CPU usage while copying file over network Performance & Maintenance
Windows Freezes when Copying Files to LaCie Network Drive Network & Sharing

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 03:59 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33