Oracle Stats Tuning Question

Could someone comment on these figures from our Oracle 8.1.7 database? I don't know what is acceptable or if this needs some tuning?

Thank you in advance.

log file sync            1,236,225    2,135,472    75.54
latch free                 843,822    240,455      8.51
db file sequential read    307,571    164,172      5.81
log file parallel write    922,302    117,881      4.17
buffer busy waits          40,700     113,049      4.00