如何避免使用X11在图形绘图中闪烁

We are drawing graph in a window. We are updating the curves for every 50ms with the values received from hardware say like sensors. We need to display the values in graphical format. So we are updating the graph for every 50ms. This gives flickering issue. We are writing the code in X11. Is there a way to avoid flickering in graphical drawing in X11. Thanks in advance.We are drawing graph in a window. We are updati