On Wed, 20 Apr 2005, Linus Torvalds wrote:
I was considering using a chunked representation for *all* files (not just blobs), which would avoid the original 'trees must reference other trees or they become too large' issue -- and maybe the performance issue you're referring to, as well?No. The most common index file operation is reading, and that's the one that has to be _fast_. And it is - it's a single "mmap" and some parsing.
OK, sure. But how 'bout chunking trees? Are you grown happy with the new trees-reference-other-trees paradigm, or is there a deep longing in your heart for the simplicity of 'trees-reference-blobs-period'? I'm fairly
certain that chunking could get you the space-savings you need without multi-level trees, if the simplicity of that is still appealing.
Not necessarily for rev.1 of the chunking code, but I'm curious as to whether it's still of interest at all. I don't know exactly how far
ingrained multilevel trees have become since they were adopted.
--scott
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( http://cscott.net/ )
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