Are you able to ping from the browser host to the host running ATS? What
typical round-trip time does it give?
On Thu, Jun 1, 2023 at 12:28 PM Nuno Jose Baeta <nuno.ba...@nos.pt> wrote:
> Hello Karas,
>
>
>
> Thank you for your reply.
>
> I did not mention, but that was exactly my last test to understand those
> <ttms> times being loged.
>
> Not surprising, the obtained values from
> <{TS_MILESTONE_UA_CLOSE-TS_MILESTONE_UA_BEGIN}msdms> are exactly the same
> as <ttms>.
>
>
>
> And so, I’m still puzzled… if no one noted that issue already… For sure
> its me doing something wrong…
>
>
>
> PS: I didn’t found any issue on github about it.
>
>
>
> Thanks again
>
> Nuno Baeta
>
>
>
> *From:* Walt Karas <wka...@yahooinc.com>
> *Sent:* 1 de junho de 2023 16:06
> *To:* Nuno Jose Baeta <nuno.ba...@nos.pt>
> *Subject:* Fwd: [E] How to log total server response time
>
>
>
>
> *CAUTION:* This email was originated from outside NOS organization. Do
> not click links or open attachments unless you recognize the sender and
> know the content is safe.
>
>
>
>
>
> ---------- Forwarded message ---------
> From: *Walt Karas* <wka...@yahooinc.com>
> Date: Mon, May 29, 2023 at 11:45 AM
> Subject: Re: [E] How to log total server response time
> To: <us...@trafficserver.apache.org>
>
>
>
> Maybe you want: %<{TS_MILESTONE_UA_CLOSE-TS_MILESTONE_UA_BEGIN}msdms>
>
>
>
> See the note under:
> https://docs.trafficserver.apache.org/admin-guide/logging/formatting.en.html#timestamps-and-durations
> <https://urldefense.com/v3/__https://docs.trafficserver.apache.org/admin-guide/logging/formatting.en.html*timestamps-and-durations__;Iw!!Op6eflyXZCqGR5I!H_WqdLg7clg1A3VfOtiqYthlulWlz7d_eOEBL0nXHcq_kmZFhq_l7BHgoWDeRpeLQoVnGrOvSFdKXHyh1z8$>
>
>
>
> On Mon, May 29, 2023 at 9:42 AM Nuno Jose Baeta <nuno.ba...@nos.pt> wrote:
>
> Hello,
>
>
>
> We are using ATS v8.1 and would like to understand better how to log the
> total time spent in a HTTP transaction (including the full body transfer
> time) towards the client.
>
>
>
> For that, we are using the field %<ttms>, for the Client-Proxy Connection
> time.
>
>
>
> Looking at the ATS documentation, the meaning for <ttms> is:
>
> “Time in milliseconds spent by Traffic Server processing the entire client
> request. Measured from the time the connection between the client and
> Traffic Server proxy was established until the last byte of the proxy
> response was delivered to the client.”
>
>
>
> At this moment, our logging.yaml for the access.log is the following:
>
> format: '%<cqtd>:%<cqtt> "%<cqtx>" %<shn> %<shi> %<sssc> %<pfsc>
> %<stms> %<ttms>'
>
>
>
> Log example:
>
> 2023-05-29:14:20:41 "GET
> http://trafficserver/media/stream_421342430.cmfv
> <https://urldefense.com/v3/__http:/trafficserver/media/stream_421342430.cmfv__;!!Op6eflyXZCqGR5I!GUMlpWKUbqXtSyyjQipM66jFsagWIGIiNLPqEquheCvVkbeYPqhdYlYml2Y0VHOwEmdAtq6iMYvYzEeyIHk$>
> HTTP/1.1" origin2 0 200 FIN 18 19
>
>
>
> But comparing to client browser network timings, we see times of hundreds
> of milliseconds. For the above example, the total time was 506ms.
>
> HTTP Timing breakdown:
>
> Connection setup: 1.85
>
> Request sent: 30.88
>
> Wait response: 49.44
>
> Content Download: 423.36
>
> *TOTAL: 505.53 ms*
>
>
>
> I cannot find any correlation.
>
> Could you tell if it is possible to achieve this?
>
>
>
> Thanks in advance.
>
> Nuno Baeta
>
> nuno.ba...@nos.pt
>
>
>
>
>
>
