feedback plugin:

  fix for mem_total on windows
  report the time of the data snapshot

plugin/feedback/utils.cc

@@ -188,24 +188,24 @@ int fill_plugin_version(THD *thd, TABLE_LIST *tables)
 */
 static ulonglong my_getphysmem()
 {
+#ifdef _WIN32
+  MEMORYSTATUSEX memstatus;
+  memstatus.dwLength= sizeof(memstatus);
+  GlobalMemoryStatusEx(&memstatus);
+  return memstatus.ullTotalPhys;
+#else
   ulonglong pages= 0;
+
 #ifdef _SC_PHYS_PAGES
   pages= sysconf(_SC_PHYS_PAGES);
-#else
-  return 0;
 #endif
 
 #ifdef _SC_PAGESIZE
   return pages * sysconf(_SC_PAGESIZE);
-#endif
-#ifdef _WIN32
-  MEMORYSTATUSEX memstatus;
-  memstatus.dwLength= sizeof(memstatus);
-  GlobalMemoryStatusEx(&memstatus);
-  return memstatus.ullTotalPhys;
 #else
   return pages * my_getpagesize();
 #endif
+#endif
 }
 
 /* get the number of (online) CPUs */
@@ -356,6 +356,7 @@ int fill_misc_data(THD *thd, TABLE_LIST *tables)
   INSERT1("Cpu_count", (my_getncpus(), UNSIGNED));
 #endif
   INSERT1("Mem_total", (my_getphysmem(), UNSIGNED));
+  INSERT1("Now", (thd->query_start(), UNSIGNED));
 
   return 0;
 }