Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables

[Ulrich Drepper]

On Sun, Mar 23, 2008 at 10:16 PM, Nicholas Miell <nmiell@xxxxxxxxxxx> wrote:
>  The limit is filesystem dependent -- I think ext2/3s is something like
>  4k total for attribute names and values per inode.
>
>  That's more than enough space for the largest executable on my system
>  (emacs at 36788160 bytes) which would have a 1123 byte predictive bitmap
>  (plus space for the name e.g. "system.predictive_bitmap"). The bitmap
>  also could be compressed.

4k attribute means support for about 32768 pages.  That's a total of
134MB.  I think this qualifies as sufficient.  Also, I assume the
attribute limit is just a "because nobody needed more so far" limit
and could in theory be extended.
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