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[67.212.168.66]) by smtp-relay.gmail.com with ESMTPS id w24sm92478oop.14.2021.09.01.10.23.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Sep 2021 10:23:54 -0700 (PDT) X-Relaying-Domain: disguise.one Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) by ams1-relay.sendergen.com (Postfix) with ESMTPS id B398C22F27AB5 for ; Wed, 1 Sep 2021 13:23:46 -0400 (EDT) Received: by mail-oo1-f70.google.com with SMTP id s20-20020a4aead40000b029028b41986b27so132442ooh.14 for ; Wed, 01 Sep 2021 10:23:46 -0700 (PDT) X-Received: by 2002:a9d:2208:: with SMTP id o8mr462762ota.78.1630517025385; Wed, 01 Sep 2021 10:23:45 -0700 (PDT) X-Received: by 2002:a9d:2208:: with SMTP id o8mr462733ota.78.1630517024976; Wed, 01 Sep 2021 10:23:44 -0700 (PDT) MIME-Version: 1.0 X-SG-Signature: true Date: Wed, 1 Sep 2021 18:23:33 +0100 Message-ID: To: lttng-dev@lists.lttng.org X-Scanned-By: 'EmailPostmaster' on 45.158.37.162 X-Mailman-Approved-At: Wed, 01 Sep 2021 14:25:28 -0400 Subject: [lttng-dev] Lttng live protocol X-BeenThere: lttng-dev@lists.lttng.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: LTTng development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Mayur Patel via lttng-dev Reply-To: Mayur Patel Content-Type: multipart/mixed; boundary="===============6640885296453520237==" Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" --===============6640885296453520237== Content-Type: multipart/alternative; boundary="000000000000130a3605caf254cc" --000000000000130a3605caf254cc Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi there, I am currently evaluating the use of CTF and lttng tooling for application tracing on windows. We are exploring alternatives to ETW that are more customisable. One thing we would really like to do is real-time monitoring of our application from another machine. I have a few questions regarding this: 1. Is lttng live protocol suitable for this purpose? What kind of latency would we expect? (e.g 10s or 100s of milliseconds or more) 2. Is the protocol documented? 3. Is it possible to use lttng-relayd to read from local CTF log files (which are being written to) and stream events to other machines / a viewer on the same machine? The reason I ask this is the documentation seems suggests lttng-relayd can consume CTF files https://lttng.org/docs/v2.13/#doc-lttng-relayd. 4. I see there is a windows cygwin build on jenkins. Would you recommend this for production use? Any guidance would be much appreciated. Thanks in advance, Mayur Mayur Patel Lead Software Engineer +44 20 7234 9840 88-89 Blackfriars Road, London, SE1 8HA =E2=80=8A= --000000000000130a3605caf254cc Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi there,

I am currently evaluating the use o= f CTF and lttng tooling for application tracing on windows. We are explorin= g alternatives to ETW that are more customisable.
One thing we wo= uld really like to do is real-time monitoring of our application from anoth= er machine. I have a few questions regarding this:

1. Is lttng live protocol suitable for this purpose? What kind of latency = would we expect? (e.g 10s or 100s of milliseconds or more)=C2=A0
= 2. Is the protocol documented?=C2=A0
3. Is it possible to use ltt= ng-relayd to read from local CTF log files (which are being written to) and= stream events to other machines / a viewer on the same machine? The reason= I ask this is the documentation seems suggests lttng-relayd can consume CT= F files=C2=A0htt= ps://lttng.org/docs/v2.13/#doc-lttng-relayd.
4. I see there i= s a windows cygwin build on jenkins. Would you recommend this for productio= n use?

Any guidance would=C2=A0be much appreciated= .

Thanks in advance,

Mayu= r

--
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3D"

=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20

Mayur Pate= l

Lead Software Engineer

T : +44 20 7234 9840

M : +44 7342 180127

A : 88-89 Blackfriars Road, London, SE1 8HA


disguise Technologies Limited is a privately owned business regis= tered in England and Wales (registered number 07937973), with its registere= d office located at 88-89 Blackfriars Road, London, SE1 8HA. This e-mail, a= nd any attachments thereto, is intended only for use by the addressee(s) na= med herein and may contain legally privileged and/or confidential informati= on. If you are not the intended recipient of this e-mail, you are hereby no= tified that any dissemination, distribution or copying of this e-mail, and = any attachments thereto, is strictly prohibited. If you have received this = e-mail in error, please notify me by replying to this message and permanent= ly delete the original and any copy of this e-mail and any printout thereof= . Although this e-mail and any attachments are believed to be free of any v= irus, or other defect which might affect any computer or system into which = they are received and opened, it is the responsibility of the recipient to = ensure that they are virus free and no responsibility is accepted by disgui= se for any loss or damage from receipt or use thereof.

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