--- a/testing/mozharness/mozharness/mozilla/building/buildbase.py
+++ b/testing/mozharness/mozharness/mozilla/building/buildbase.py
@@ -1842,16 +1842,45 @@ or run without that action (ie: --no-{ac
         if return_code:
             self.return_code = self.worst_level(
                 return_code,  self.return_code,
                 AUTOMATION_EXIT_CODES[::-1]
             )
             self.error("'make -k check' did not run successfully. Please check "
                        "log for errors.")
 
+    def _load_build_resources(self):
+        p = self.config.get('build_resources_path') % self.query_abs_dirs()
+        if not os.path.exists(p):
+            self.info('%s does not exist; not loading build resources' % p)
+            return None
+
+        with open(p, 'rb') as fh:
+            resources = json.load(fh)
+
+        if 'duration' not in resources:
+            self.info('resource usage lacks duration; ignoring')
+            return None
+
+        data = {
+            'name': 'build times',
+            'value': resources['duration'],
+            'subtests': [],
+        }
+
+        for phase in resources['phases']:
+            if 'duration' not in phase:
+                continue
+            data['subtests'].append({
+                'name': phase['name'],
+                'value': phase['duration'],
+            })
+
+        return data
+
     def generate_build_stats(self):
         """grab build stats following a compile.
 
         This action handles all statistics from a build: 'count_ctors'
         and then posts to graph server the results.
         We only post to graph server for non nightly build
         """
         if self.config.get('forced_artifact_build'):
@@ -1938,24 +1967,24 @@ or run without that action (ie: --no-{ac
         }
         if installer_size or size_measurements:
             perfherder_data["suites"].append({
                 "name": "installer size",
                 "value": installer_size,
                 "alertThreshold": 0.25,
                 "subtests": size_measurements
             })
-        if (hasattr(self, "build_metrics_summary") and
-            self.build_metrics_summary):
-            perfherder_data["suites"].append(self.build_metrics_summary)
+
+        build_metrics = self._load_build_resources()
+        if build_metrics:
+            perfherder_data['suites'].append(build_metrics)
 
         if perfherder_data["suites"]:
             self.info('PERFHERDER_DATA: %s' % json.dumps(perfherder_data))
 
-
     def sendchange(self):
         if os.environ.get('TASK_ID'):
             self.info("We are not running this in buildbot; skipping")
             return
 
         if self.config.get('enable_talos_sendchange'):
             self._do_sendchange('talos')
         else: