Re: [PATCH] Re: tangle option to not write a file with same contents?

[Tom Gillespie]

I can report that with the current changes in the tree
I see some nice performance improvements in files
where I have large numbers of blocks where I modify
a subset of them (beyond a single case where C-u
C-c C-v C-t works) and then retangle the whole file.
Best,
Tom