Manuel Benitez wrote: > Andreas, > > Thank you for the reply. I wrote a program that uses FIEMAP to see > what I could get from it. It gives the same information that you can > extract from FIBMAP except that it is much more efficient (one ioctl > call per extent rather than one call per block). Unfortunately, it > does not give much insight into the structure of the metadata, so > there is no way to tell how efficiently the metadata represents the > file (depth of extent tree, number of internal and leaf nodes, etc.). adding something to debugfs should not be hard either; look at how it prints out the BLOCKS: when you stat a file, for extent-format files it'd be nice to have a better representation. If you wanted to write a patch for this it'd be great. :) -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
