On amd64, when running allocation-intensive code in the presence of
many shared objects, finding the relevant CFI information for stack
unwinding becomes a significant performance overhead.  This change
slowly rearranges the SegInfo list to bring more popular entries to
the front during CFI lookup.  This reduces the startup time of
konqueror on memcheck on amd64 from 124 to 110 seconds.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5125 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed