<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p style="margin-top:0;margin-bottom:0">I believe Trace Compass can read the "<span>Trace event format</span>" natively, but I'll let me colleague comment on this (I forgot to CC the cfe-dev so he could not reply).</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Marc-André<br>
</p>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dean Michael Berris <dean.berris@gmail.com><br>
<b>Sent:</b> Thursday, December 7, 2017 6:09:09 AM<br>
<b>To:</b> Marc-André Laperle<br>
<b>Cc:</b> Brian Cain; LLVM Developers; Keith Wyss<br>
<b>Subject:</b> Re: [cfe-dev] XRay Trace of Clang, Loadable through Chrome Trace Viewer</font>
<div> </div>
</div>
<div class="" style="word-wrap:break-word">Sweet stuff! Thanks for sharing this, Marc-André!
<div class=""><br class="">
</div>
<div class="">It seems like Trace Compass can already handle CTF. I suspect if we implemented a converter to CTF, that we can turn XRay traces into something that can be visualised with this. That, or have Trace Compass load XRay traces natively.</div>
<div class=""><br class="">
</div>
<div class="">Cheers</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On 7 Dec 2017, at 03:47, Marc-André Laperle <<a href="mailto:marc-andre.laperle@ericsson.com" class="">marc-andre.laperle@ericsson.com</a>> wrote:</div>
<br class="x_Apple-interchange-newline">
<div class="">
<div id="x_divtagdefaultwrapper" dir="ltr" class="" style="font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; font-size:12pt; font-family:Calibri,Helvetica,sans-serif,EmojiFont,'Apple Color Emoji','Segoe UI Emoji',NotoColorEmoji,'Segoe UI Symbol','Android Emoji',EmojiSymbols">
<div class="" style="margin-top:0px; margin-bottom:0px"><span class="">"The caveat is, while the tool (llvm-xray convert) can generate arbitrarily large Chrome-loadable traces, the Chrome trace viewer can only handle so much data."</span></div>
<div class="" style="margin-top:0px; margin-bottom:0px"><span class=""><br class="">
</span></div>
<div class="" style="margin-top:0px; margin-bottom:0px"><span class="">A tool like Trace Compass could help here, it does scale pretty well. (see<span class="x_Apple-converted-space"> </span></span><a href="http://tracecompass.org/" class="x_OWAAutoLink" id="LPlnk938183"><span class=""></span>tracecompass.org</a>)</div>
<div class="" style="margin-top:0px; margin-bottom:0px">I'm replying here so a colleague who just suscribed to the mailing list can reply here.</div>
<div class="" style="margin-top:0px; margin-bottom:0px"><br class="">
</div>
<div class="" style="margin-top:0px; margin-bottom:0px">Marc-André<br class="">
</div>
<br class="">
<br class="">
<div class="" style="">
<hr tabindex="-1" class="" style="display:inline-block; width:1129.9375px">
<div id="x_divRplyFwdMsg" dir="ltr" class=""><font face="Calibri, sans-serif" class="" style="font-size:11pt"><b class="">From:</b><span class="x_Apple-converted-space"> </span>cfe-dev <<a href="mailto:cfe-dev-bounces@lists.llvm.org" class="">cfe-dev-bounces@lists.llvm.org</a>>
on behalf of Dean Michael Berris via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org" class="">cfe-dev@lists.llvm.org</a>><br class="">
<b class="">Sent:</b><span class="x_Apple-converted-space"> </span>Tuesday, December 5, 2017 3:52 PM<br class="">
<b class="">To:</b><span class="x_Apple-converted-space"> </span>Brian Cain<br class="">
<b class="">Cc:</b><span class="x_Apple-converted-space"> </span>LLVM Developers; Keith Wyss; Clang Dev<br class="">
<b class="">Subject:</b><span class="x_Apple-converted-space"> </span>Re: [cfe-dev] XRay Trace of Clang, Loadable through Chrome Trace Viewer</font>
<div class=""> </div>
</div>
<div dir="auto" class=""><br class="">
<br class="">
<div id="x_x_AppleMailSignature" class="">Sent from my iPhone</div>
<div class=""><br class="">
On 6 Dec 2017, at 4:17 am, Brian Cain <<a href="mailto:brian.cain@gmail.com" class="">brian.cain@gmail.com</a>> wrote:<br class="">
<br class="">
</div>
<blockquote type="cite" class="">
<div class="">
<div dir="ltr" class=""><br class="">
<div class="x_x_gmail_extra"><br class="">
<div class="x_x_gmail_quote">On Tue, Dec 5, 2017 at 9:49 AM, Dean Michael Berris via cfe-dev<span class="x_Apple-converted-space"> </span><span dir="ltr" class=""><<a href="mailto:cfe-dev@lists.llvm.org" target="_blank" class="">cfe-dev@lists.llvm.org</a>></span><span class="x_Apple-converted-space"> </span>wrote:<br class="">
<blockquote class="x_x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left-width:1px; border-left-style:solid; border-left-color:rgb(204,204,204); padding-left:1ex">
Hi cfe-dev@ and llvm-dev@,<br class="">
<br class="">
I've attached a Chrome trace-viewer readable trace of a clang built with XRay instrumentation (additional build/link flags="-fxray-instrument -fxray-instruction-threshold=<wbr class="">75") with the latest "top-of-trunk" version of clang with the recent updates
to the XRay runtime supporting record filtering.<br class="">
<br class="">
To load the attached file, go to '<a href="" class="">chrome://tracing</a>' in your Chrome/Chromium browser and load the .gz file directly. Pressing '?' should give a help dialog.<br class="">
<br class="">
</blockquote>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">This is an interesting feature. Is it designed to accept arbitrary xray trace logs or only ones for/from Chrome/ium?</div>
<div class=""><br class="">
</div>
</div>
</div>
</div>
</div>
</blockquote>
<div class=""><br class="">
</div>
Yes, it works on any XRay trace generated with the logging implementations that come with XRay in compiler-rt.
<div class=""><br class="">
</div>
<div class="">The example attached was of an instrumented Clang binary compiling C++ code. 😁</div>
<div class=""><br class="">
</div>
<div class="">The caveat is, while the tool (llvm-xray convert) can generate arbitrarily large Chrome-loadable traces, the Chrome trace viewer can only handle so much data.</div>
<div class=""><br class="">
</div>
<div class="">Cheers</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br class="">
<div class="">
<div class="" style="color:rgb(0,0,0); letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; word-wrap:break-word">
<div class="" style="color:rgb(0,0,0); letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; word-wrap:break-word">
-- Dean</div>
</div>
</div>
<br class="">
</div>
</div>
</body>
</html>