Measure sandbox info fetching

Author: nygrenh

app/background_tasks/sandbox_status_fetcher_task.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require 'json'
+require 'benchmark'
 require 'remote_sandbox'
 
 class SandboxStatusFetcherTask
@@ -10,11 +11,16 @@ def initialize
 
   def run
     data = @sandboxes.map do |sandbox|
-      {
-        baseurl: sandbox.baseurl,
-        busy_instances: sandbox.busy_instances,
-        capacity: sandbox.capacity,
-      }
+      data = nil
+      fetching_time = Benchmark.measure do
+        data = {
+          baseurl: sandbox.baseurl,
+          busy_instances: sandbox.busy_instances,
+          capacity: sandbox.capacity,
+        }
+      end
+      data[:fetching_time] = fetching_time.real.round(2)
+      data
     end
     Rails.cache.write("sandbox-status-cache", data.to_json, expires_in: 1.minute)
   end

app/views/status/index.html.erb

@@ -57,6 +57,7 @@
         <th>Name</th>
         <th>Busy instances</th>
         <th>Capacity</th>
+        <th>Time spent fething this information</th>
       </tr>
     </thead>
     <tbody>
@@ -66,6 +67,7 @@
         <td><%= sandbox['baseurl'] %></td>
         <td><%= sandbox['busy_instances'] %></td>
         <td><%= sandbox['capacity'] %></td>
+        <td><%= sandbox['fetching_time'] %></td>
       </tr>
     <% end %>
     </tbody>