I'm trying to use this tkprof utility..and it seems like it's not working....I write this on command line..

$tkprof trace=test_ora_1234.trc output=test

and...it creates test.prf, but when I view this, I don't see no result...what did I do wrong...

This trace file is in udump, can I use tkprof utility to view trace file in bdump?