Messages in this thread | | | Date | Mon, 24 Mar 2008 12:42:14 -0700 | From | "Ulrich Drepper" <> | Subject | Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables |
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On Sun, Mar 23, 2008 at 10:16 PM, Nicholas Miell <nmiell@comcast.net> 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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