Messages in this thread | | | Date | Thu, 30 Mar 2000 17:53:24 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: Is ReiserFS really a journaling file system, or is it really just a synchronous-metadata file system like BSD FFS? |
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On Wed, 29 Mar 2000, Ralf Baechle wrote:
>You still need to write most things twice, so you just made main memory and >PCI bus performance the bottleneck.
You can as well write a journaling data+metadata filesystem that does zero copy if you accept file fragmentation on file changes. But if you need zero copy at that cost then you'd better use logging filesystem that would have less inode block allocation overhead (immediate function ;) and that has the same fragmentation trouble (read-I/O potentially slower due seeks).
Andrea
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