You can monitor statistics and other performance information with the web console.
After you create your data grids and configure your applications to use the data grids, allow some time to pass for the statistics to become available. For example, with a dynamic cache data grid, statistics are not available until a WebSphere® Application Server that is running a dynamic cache connects to the dynamic cache. In general, wait up to one minute after a major configuration change to see the changes in your statistics.