Package: libstdc++2.10-dev Version: 2.95.4-0.010604 With this last version (and the former 2.95.4) I have severe exec time penality on programs compiled with libstdc++2.10-dev_2.95.4 (woody and sid) vs. _2.95.2 (potato). This seems to come from buggy sstream already reported as #92524. Gaetan A.