diff --git a/python/mozbuild/mozbuild/artifact_commands.py b/python/mozbuild/mozbuild/artifact_commands.py
index 797194a412b1..78936354192f 100644
--- a/python/mozbuild/mozbuild/artifact_commands.py
+++ b/python/mozbuild/mozbuild/artifact_commands.py
@@ -190,11 +190,13 @@ class PackageFrontend(MachCommandBase):
         )
         import redo
         import requests
+        import time
 
         from taskgraph.util.taskcluster import (
             get_artifact_url,
         )
 
+        start = time.time()
         self._set_log_level(verbose)
         # Normally, we'd use self.log_manager.enable_unstructured(),
         # but that enables all logging, while we only really want tooltool's
@@ -430,4 +432,20 @@ class PackageFrontend(MachCommandBase):
             with open(artifact_manifest, 'w') as fh:
                 json.dump(artifacts, fh, indent=4, sort_keys=True)
 
+        if 'MOZ_AUTOMATION' in os.environ:
+            end = time.time()
+
+            perfherder_data = {
+                'framework': {'name': 'build_metrics'},
+                'suites': [{
+                    'name': 'mach_artifact_toolchain',
+                    'value': end - start,
+                    'lowerIsBetter': True,
+                    'shouldAlert': False,
+                    'subtests': [],
+                }],
+            }
+            self.log(logging.INFO, 'perfherder', {'data': json.dumps(perfherder_data)},
+                     'PERFHERDER_DATA: {data}')
+
         return 0
diff --git a/taskcluster/scripts/misc/fetch-content b/taskcluster/scripts/misc/fetch-content
index 412c5b288a98..f142608864c5 100755
--- a/taskcluster/scripts/misc/fetch-content
+++ b/taskcluster/scripts/misc/fetch-content
@@ -584,6 +584,7 @@ def api(root_url, service, version, path):
 
 
 def command_task_artifacts(args):
+    start = time.monotonic()
     fetches = json.loads(os.environ['MOZ_FETCHES'])
     downloads = []
     for fetch in fetches:
@@ -604,6 +605,19 @@ def command_task_artifacts(args):
         downloads.append((url, extdir, fetch['extract']))
 
     fetch_urls(downloads)
+    end = time.monotonic()
+
+    perfherder_data = {
+        'framework': {'name': 'build_metrics'},
+        'suites': [{
+            'name': 'fetch_content',
+            'value': end - start,
+            'lowerIsBetter': True,
+            'shouldAlert': False,
+            'subtests': [],
+        }],
+    }
+    print('PERFHERDER_DATA: {}'.format(json.dumps(perfherder_data)), file=sys.stderr)
 
 
 def main():