Messages in this thread | | | Date | Wed, 21 Feb 2001 15:15:17 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [rfc] Near-constant time directory index for Ext2 |
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Martin Mares wrote: > > Hello! > > > True. Note too, though, that on a filesystem (which we are, after all, > > talking about), if you assume a large linear space you have to create a > > file, which means you need to multiply the cost of all random-access > > operations with O(log n). > > One could avoid this, but it would mean designing the whole filesystem in a > completely different way -- merge all directories to a single gigantic > hash table and use (directory ID,file name) as a key, but we were originally > talking about extending ext2, so such massive changes are out of question > and your log n access argument is right. >
It would still be tricky since you have to have actual files in the filesystem as well.
-hpa
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