swapbytes
swapbytes(in.dbp, (size_t)n);
uint64_t swapbytes;
swapbytes = ptoa(pu[idx]->pages);
sysputuint64(wnd, y, offset, 4, swapbytes, 0);
rate = pu[idx]->total > 1 ? 100 * swapbytes / pu[idx]->total : 0;