Measure federation send transaction resources

synapse/util/metrics.py

@@ -13,10 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from twisted.internet import defer
 
 from synapse.util.logcontext import LoggingContext
 import synapse.metrics
 
+from functools import wraps
 import logging
 
 
@@ -47,6 +49,18 @@ block_db_txn_duration = metrics.register_distribution(
 )
 
 
+def measure_func(name):
+    def wrapper(func):
+        @wraps(func)
+        @defer.inlineCallbacks
+        def measured_func(self, *args, **kwargs):
+            with Measure(self.clock, name):
+                r = yield func(self, *args, **kwargs)
+            defer.returnValue(r)
+        return measured_func
+    return wrapper
+
+
 class Measure(object):
     __slots__ = [
         "clock", "name", "start_context", "start", "new_context", "ru_utime",