trace(TRACE_gc,"thread %d:", i);
trace(TRACE_gc," copied %ld", gc_threads[i]->copied * sizeof(W_));
trace(TRACE_gc," any_work %ld", gc_threads[i]->any_work);
trace(TRACE_gc," no_work %ld", gc_threads[i]->no_work);
trace(TRACE_gc,"thread %d:", i);
trace(TRACE_gc," copied %ld", gc_threads[i]->copied * sizeof(W_));
trace(TRACE_gc," any_work %ld", gc_threads[i]->any_work);
trace(TRACE_gc," no_work %ld", gc_threads[i]->no_work);