[Various] libc/1712: Performance loss with glibc-2.1.[23] vs 2.1.1

[Andreas Jaeger]

Hi,

we've got the appended bug report - and I don't really understand the
slow down.  I can even reproduce it somehow on my system (Pentium III
with 500 Mhz):

The installed glibc 2.1.3:
$ time ./pr1712 
 F(n)=  1.44779895E+09  2.72745061E+09  1.94683947E+09

real    1m2.668s
user    2m2.200s
sys     0m0.060s

Current glibc 2.2 CVS version:
$ time LD_LIBRARY_PATH=.:math:elf elf/ld-linux.so.2  /tmp/pr/pr1712
 F(n)=  1.44779895E+09  2.72745061E+09  1.94683947E+09

real    0m20.489s
user    0m39.720s
sys     0m0.060s

Has anybody an idea what's broken or what else to test?

Andreas