AGSGraphicsLayer eat up memory in SDK 10.1.1

Discussion created by zhangzhb369 on Jun 9, 2013
I create 10 AGSGraphicsLayers on my pad App. It works well in SDK 2.3.2.
Today I  upgrade the SDK to 10.1.1. It occupied nearly 600MB when I create the 10 AGSGraphicsLayers on App starting. Then it crashed because it received high memory warning.

How to solve my problem? Merge the 10 AGSGraphicsLayers into 1?
Addition, my app has ARC(auto-reference-couting) on.

Thank you!