From: Theodore Ts'o > On Mon, Mar 18, 2019 at 04:27:38PM -0400, Gabriel Krisman Bertazi wrote: > > From: Olaf Weber <olaf@xxxxxxx> > > > > Remove the Hangul decompositions from the utf8data trie, and do > > algorithmic decomposition to calculate them on the fly. To store > > the decomposition the caller of utf8lookup()/utf8nlookup() must > > provide a 12-byte buffer, which is used to synthesize a leaf with > > the decomposition. Trie size is reduced from 245kB to 90kB. > > I'm seeing sizes much smaller; the actual utf8data[] array is 63,584. > And size utf8-norm.o reports: > > text data bss dec hex filename > 68752 96 0 68848 10cf0 fs/unicode/utf8-norm.o > > Were you measuring the size of the utf8-norm.o file? That will vary > in size depending on whether debugging symbols are enabled, etc. > > - Ted These numbers came from the size of the array reported in utf8data.h, and were correct for the NFKDI + NFKDICF normalizations for Unicode 9. The switch to NFDI + NFDICF reduced the size, and it looks like the commit message was not updated to account for this. Olaf
