sorter_stop_timer(ctx, &ctx->total_ext_time);
SORT_TRACE("Mergesort pass %d (final run, %s, %dMB/s)", pass, stk_fsize(size), sorter_speed(ctx, size));
sbuck_drop(ins[0]);
sorter_stop_timer(ctx, &ctx->total_ext_time);
SORT_TRACE("Mergesort pass %d (final run, %s, %dMB/s)", pass, stk_fsize(size), sorter_speed(ctx, size));
sbuck_drop(ins[0]);