kgiusti commented on a change in pull request #858:
URL: https://github.com/apache/qpid-dispatch/pull/858#discussion_r499807867



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File path: src/adaptors/http1/http1_client.c
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@@ -1202,8 +1220,11 @@ uint64_t 
qdr_http1_client_core_link_deliver(qdr_http1_adaptor_t    *adaptor,
     _client_response_msg_t *rmsg = DEQ_TAIL(hreq->responses);
     assert(rmsg && rmsg->dlv == delivery);
 
-    if (!rmsg->dispo)
+    if (!rmsg->dispo) {
         rmsg->dispo = _encode_response_message(hreq, rmsg);
+        hreq->base.stop = qd_timer_now();

Review comment:
       By INFO I mean 100 Continue.  In the case of 100 Continue this codepath 
will be executed twice: once when the 100 Continue is encoded and again when 
the terminal response arrives.  So basically there are two response messages 
for a single request.
   
   I'm afraid I'm being dense regarding the definition of latency - or more 
specifically what is included in the duration we're calling latency.   I'm 
assuming latency is going to include the time the server spends processing the 
request if we're running the timer until the response is encoded (otherwise we 
could try stopping the timer when the server sends the terminal disposition for 
the request). 
   
   If we're timing the whole enchilada (server processing and full response 
encoding) we'd probably want to stop the timer in the request_complete callback.




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