Re: Block fragments in ext2

From: Alexander Viro (viro@math.psu.edu)
Date: Tue Apr 18 2000 - 08:09:51 EDT

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    On Tue, 18 Apr 2000, Stephen C. Tweedie wrote:

    > Hi,
    >
    > On Tue, Apr 18, 2000 at 04:10:23AM +0000, Justin Hopkins wrote:
    > >
    > > My main question is this: Are block fragments essentially deprecated?
    >
    > Yes. The ext2 block allocation algorithms are a lot better than those
    > in the original FFS, and we can get good performance with smaller block
    > sizes.

    Stephen, I seriously suspect that larger allocation block sizes would
    buys us a better speed. Reason: allocation algorithms in Linux ext2 and
    FreeBSD UFS implementations are very similar. Ditto for layouts, indeed.
    And on FreeBSD 16Kb blocks give visible win over the 4Kb ones.

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