On 02/18/2015 01:03 PM, Joe Zappa wrote:

...

e for the JPG files at a few M each.

But 30% of the files are 2K or less. That means at 4K I'm guaranteed to be wasting space, and it gets worse for larger block size.

This is where XFS excels.

XFS can address in 1/8th block increments, so average wasted space at the end of a file is not 4k/2= 2k, but instead 512/2 = 256.

Actually it seems and area where the three main B-Tree file systems, XFS, ReiserFS and BtrFS excel in that they are all capable of doing something like this. Other FS may do something like this too. It may be something to do with the way a B-tree indexes, I don't know the details, but I do recall from my database days that B-tree indexes can point "inside" leafs. I'm not trying to decry XFS, just point out that its not unique here. -- A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting frowned upon? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org