make_not_compilable event doesn't provide any info at which level compilation is disabled for a method. Sample: <make_not_compilable thread='...' method='...' bytes='...' count='...' backedge_count='...' iicount='...' stamp='...'/> <make_not_osr_compilable thread='...' method='...' bytes='...' count='...' backedge_count='...' iicount='...' stamp='...'/> Suggested format: <make_not_compilable thread='...' osr='...' level='...' method='...' bytes='...' count='...' backedge_count='...' iicount='...' stamp='...'/>