so many DfrgNtfs.exe running background once kick off the defragment in vista

Discussion in 'Windows Vista General Discussion' started by Yinghe Chen, Jan 11, 2007.

  1. Yinghe Chen

    Yinghe Chen Guest

    I kicked off the disk defragment in vista, and open the Resource Monitor,
    found at least 5-6 Dfrgntfs.exe is running backgrounds simultaneously, is
    it designed so? Optimized for speed?

    I am just hearing that the hard disk is keep on giving out noises.
    Yinghe Chen, Jan 11, 2007
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  2. I've asked someone from the defrag team to answer this...stay tuned!
    Jill Zoeller [MSFT], Jan 11, 2007
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  3. I want to make sure I'm 100% right as to the reason you see multiple files
    with IO so I'll answer that shortly.

    As for hard disk noise, this happens whenever you do a lot of read/write on
    your disk, especially moving files around physically (versus moving them
    from c:\users\me\documents to c:\users\me\pictures). When you download
    large files or install big programs you will hear disk noise from the
    hardware moving. Hard disks have a lot of moving parts. The spinning of
    the spindle assembly, and seek movements of the head actuator (which has
    lots of moving parts all on its own), are probably the noises you're most
    aware of...

    Defrag moves files around a LOT, so you get a lot of this hard disk IO noise
    the whole time you defrag.

    This posting is provided "AS IS" with no warranties, and confers no rights.
    Victoria House [MSFT], Jan 11, 2007
  4. Yinghe Chen

    DevilsPGD Guest

    In message <> "Jill Zoeller [MSFT]"

    In XP and 2003 when I defrag I typically see DfrgNtfs.exe using a fairly
    large amount of RAM (just under 700MB last time I attempted to defrag my
    file server's 1TB array) -- Is this still happening on Vista?
    DevilsPGD, Jan 11, 2007
  5. I can't say for sure how much less in Vista than XP. It is less, but XP was
    before my time and I haven't tested/benchmarked this specifically. I regret
    that I don't have these stats.

    For Server we're making a lot of reliability and performance improvements
    even on Vista. Currently I *think* we've got more than a 20% improvement on
    a 1 million extent (files+extra extents) drive for Longhorn Server. SP1
    will be sharing the defrag codebase with Longhorn Server, so will also have
    these improvements.

    Rest assured it will be loads better for SP1, and I am honestly sorry I
    can't give you a number for XP vs. Vista.

    So for now, don't go downgrading your RAM.


    Victoria House [MSFT], Jan 11, 2007
  6. Resource monitor takes a snapshot of what has changed in the last few
    seconds, not necessarily what is changing "right this instant".

    So what you are seeing is all of the files that have been read/written by
    dfrgntfs since the last ResMon refresh.

    Does this answer your question?

    Victoria House [MSFT], Jan 11, 2007
  7. Yinghe Chen

    DevilsPGD Guest

    In message <>
    Fair enough, thanks!
    DevilsPGD, Jan 11, 2007
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