find_nsegment_idx: double size of the lookup cache in an attempt
to mitigate the probable increase in miss rates resulting from
r11798 (which causes increased numbers of such queries).



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11799 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed