Support IOOptimized type
Support IOOptimized type

Change-Id: Ibcc4c7c8e440ae94c2737ccdb4ab311f6ea861a4
Signed-off-by: weiyuan.yl <affad189ee390f4270b776d978e976ad992db3b2@alibaba-inc.com>

jzwlqx/aliyungo,denverdino/aliyungo