Change bsdiff to use divsufsort suffix sort library instead of qsufsort.
Divsufsort is more efficient and addresses the problem of bsdiff hanging
on certain files.
Here are some measurements of the delta diff generator comparing the two
suffix sort alogrithms.
qsufsort:
real 4m40.670s
user 4m19.170s
sys 0m6.400s
divsufsort:
real 3m29.426s
user 3m7.890s
sys 0m6.630s
BUG=chrome-os-partner:3785
TEST=Unit tests, created + applied delta and ensured the system updated
properly, manually ran bsdiff against problematic files to ensure it
completed in a timely manner
Change-Id: Ic5d4215a2de5a1845d88fad5c466f1adf0eaccee
Reviewed-on: http://gerrit.chromium.org/gerrit/1080
Reviewed-by: Darin Petkov <petkov@chromium.org>
Tested-by: Thieu Le <thieule@chromium.org>
1 file changed
