public UpdateFileSystemResult withPerformanceMode(String performanceMode) {
        setPerformanceMode(performanceMode);
        return this;
    }
<p>
The Performance mode of the file system.
</p>

@param performanceMode
       The Performance mode of the file system.
@return Returns a reference to this object so that method calls can be chained together.
@see PerformanceMode
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/UpdateFileSystemResult.java