Windows 7 slow file transfer speeds?

Anyone else noticed a big reduction in file transfer (copy or move) speeds between Win XP Pro and Win 7 Pro? In particular, I'm tranferring files between my hard drive (u320 scsi) and external usb drive.
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  1. Show us benchmarks? You sure a disk is not running in PIO mode?

    Post some HDTune benches to start with.
  2. sub mesa said:
    Show us benchmarks? You sure a disk is not running in PIO mode?

    Post some HDTune benches to start with.


    Can't figure out how to embed images in here but here are the stats, I have 3 146GB SCSI drives:

    C: Transfer Rate: Min: 37.1 Max: 76.3 Avg: 60.9 Access Time: 8.2ms Burst Rate: 75.1 CPU Usage -1.0%

    D: Transfer Rate: Min: 36.6 Max: 66.4 Avg: 54.0 Access Time: 7.9ms Burst Rate: 72.9 CPU Usage -1.0%

    E: Transfer Rate: Min: 25.5 Max: 66.5 Avg: 53.9 Access Time: 8.0ms Burst Rate: 72.9 CPU Usage -1.0%

    I am copying from the E:\ drive to external Western Digital USB 500GB drive. I'm not sure what PIO mode is?
  3. Seems decent to me, no PIO problems there.

    What made you think the performance is lower on Windows 7? I've not seen such claims validated, and there should be no reason Windows 7 is slower than any other Windows version.

    Its possible Windows 7 has some background services running that reduce performance at a particular time, for example:

    indexing service (for faster searching)
    automatic updates
    defragmenting service (task scheduler)
    system restore
    SuperFetch (records your program usage and loads frequently used applications into memory even before you open the programs right after booting, to be able to start them quickly as you need them).
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