In the perf env, I have 358 compat groups defined. When I go to the #Inventory/Groups/AllGroups, the view loads fine. But if I then scroll quickly to the bottom of the table, I get the following error and the table is blank:

Failed to load group composite data. This occurred because the server is taking a long time to complete this request. Please be aware that the server may still be processing your request and it may complete shortly. You can check the server logs to see if any abnormal errors occurred.
Severity :	
Warning
	
Time :	
Monday, July 11, 2011 3:47:51 PM Etc/GMT+4
Detail :	
com.google.gwt.http.client.RequestTimeoutException:A request timeout has expired after 10000 ms
--- STACK TRACE FOLLOWS ---
A request timeout has expired after 10000 ms
    at Unknown.com_google_gwt_http_client_RequestTimeoutException_$RequestTimeoutException__Lcom_google_gwt_http_client_RequestTimeoutException_2Lcom_google_gwt_http_client_Request_2ILcom_google_gwt_http_client_RequestTimeoutException_2(Unknown source:0)
    at Unknown.com_google_gwt_http_client_Request_$fireOnTimeout__Lcom_google_gwt_http_client_Request_2Lcom_google_gwt_http_client_RequestCallback_2V(Unknown source:0)
    at Unknown.com_google_gwt_http_client_Request$3_run__V(Unknown source:0)
    at Unknown.com_google_gwt_user_client_Timer_fire__V(Unknown source:0)
    at Unknown.anonymous(Unknown source:0)
    at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown source:0)
    at Unknown.anonymous(Unknown source:0)
    at Unknown.anonymous(Unknown source:0)

We'll need to increase the 10000 timeout to a much larger number to find out how long the RPC call takes to complete. Once we have that info, we can decide whether we want to permanently increase the timeout and/or tune the performance of the underlying SLSB method.