<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif">With coming release of Linux kernel 4.1  with BPF tracing, we should ask Brendan Gregg if he's coming to Boston in the next 12 months ( OTHER than the first week of December when he'll probably be here ) ... and if not, recruit someone else to cover this topic.<br><br><br></div><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Bill Ricker</b> <span dir="ltr"><<a href="mailto:bill.n1vux@gmail.com">bill.n1vux@gmail.com</a>></span><br>Date: Wed, Nov 2, 2016 at 12:54 PM<br>Subject: Re: Notes from Re: tech meeting THIS TUESDAY - <a href="http://flamegraph.pl">flamegraph.pl</a> A visualization for Profiler output<br>To: Boston PM <<a href="mailto:Boston-pm@mail.pm.org">Boston-pm@mail.pm.org</a>><br><br><br><div dir="ltr"><div style="font-family:georgia,serif">Late breaking Update: Brendan Gregg posted on 2016-10-27 that <br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">"With the final major capability for BPF tracing (timed sampling) merging
 in Linux 4.9-rc1, the Linux kernel now has raw capabilities similar to 
those provided by DTrace, the advanced tracer from Solaris"<br></blockquote><br><a href="http://www.brendangregg.com/blog/2016-10-27/dtrace-for-linux-2016.html" target="_blank">http://www.brendangregg.com/<wbr>blog/2016-10-27/dtrace-for-<wbr>linux-2016.html</a><br><br></div><div style="font-family:georgia,serif">(and added to notes on <a href="http://Boston.PM.org/Calendar2016/" target="_blank">http://Boston.PM.org/<wbr>Calendar2016/</a> for future reference )<br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Sep 13, 2016 at 11:31 PM, Bill Ricker <span dir="ltr"><<a href="mailto:bill.n1vux@gmail.com" target="_blank">bill.n1vux@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-family:georgia,serif"><br></div><div class="gmail_extra"><div style="font-family:georgia,serif">​Also posted to <a href="http://Boston.PM.org" target="_blank">Boston.PM.org</a> wiki ...<br>​</div><span style="font-family:verdana,sans-serif">Links<br>
</span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://www.brendangregg.com" rel="nofollow" target="_blank">Brendan Gregg </a></span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://www.brendangregg.com/flamegraphs.html" rel="nofollow" target="_blank">FlameGraphs</a></span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html" rel="nofollow" target="_blank">CPU flameGraphs</a></span></li></ul></li><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://github.com/brendangregg/FlameGraph/" rel="nofollow" target="_blank">Github </a></span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://github.com/brendangregg/FlameGraph/blob/master/flamegraph.pl" rel="nofollow" target="_blank">flamegraph.pl</a></span></li></ul></li><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://dtrace.org/blogs/brendan/page/12/" rel="nofollow" target="_blank">DTrace.org Blogs</a></span></li><li><span style="font-family:verdana,sans-serif">LISA'13 "<a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://www.usenix.org/conference/lisa13/technical-sessions/plenary/gregg" rel="nofollow" target="_blank">Blazing Performance with Flame Graphs</a>"<br></span>
<table class="m_-7386052612027637854m_3682523568688573026gmail-captionBox" style="float:right"><tbody><tr><td class="m_-7386052612027637854m_3682523568688573026gmail-captionedImage"><span style="font-family:verdana,sans-serif"><img src="http://boston-pm.wikispaces.com/file/view/blazing-performance-with-flame-graphs-1-638.jpg/591937916/190x143/blazing-performance-with-flame-graphs-1-638.jpg" alt="blazing-performance-with-flame-graphs-1-638.jpg" title="blazing-performance-with-flame-graphs-1-638.jpg" style="height:143px;width:190px" align="right"></span></td></tr><tr><td class="m_-7386052612027637854m_3682523568688573026gmail-imageCaption"><span style="font-family:verdana,sans-serif">Blazing Performance with Flamegraphs cover</span></td></tr></tbody></table><span style="font-family:verdana,sans-serif"><br>
(plenary!)</span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://www.youtube.com/embed/nZfNehCzGdw?rel=0" rel="nofollow" target="_blank">Video</a></span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://youtu.be/nZfNehCzGdw?t=3353" rel="nofollow" target="_blank">Start of Advanced section</a> ... <i><span style="font-family:georgia,serif">where we stopped, continue from here</span></i></span></li></ul></li><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://www.slideshare.net/slideshow/embed_code/28010650" rel="nofollow" target="_blank">Slides</a></span></li><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://github.com/brendangregg/FlameGraph/tree/master/demos" rel="nofollow" target="_blank">Interactive Demos</a> on github</span></li></ul></li></ul></li><li><span style="font-family:verdana,sans-serif">Used in <a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://metacpan.org/pod/distribution/Devel-NYTProf/bin/nytprofhtml" rel="nofollow" target="_blank">CPAN Devel::NYTProf</a></span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="https://blog.timbunce.org/2013/04/08/nytprof-v5-flaming-precision/" rel="nofollow" target="_blank">blog announce by Tim Bunce</a><div style="font-family:georgia,serif;display:inline">​ ​</div></span></li></ul></li></ul><p><br></p><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://jvns.ca/" rel="nofollow" target="_blank">Julia Evans</a> Debugging and general dev blogs & debug zines - where i found the first links</span><table class="m_-7386052612027637854m_3682523568688573026gmail-captionBox" style="float:right"><tbody><tr><td class="m_-7386052612027637854m_3682523568688573026gmail-captionedImage"><span style="font-family:verdana,sans-serif"><img src="http://boston-pm.wikispaces.com/file/view/debugging-tools-cover-50pc.png/591938152/291x163/debugging-tools-cover-50pc.png" alt="debugging-tools-cover-50pc.png" title="debugging-tools-cover-50pc.png" style="height:163px;width:291px" align="right"></span></td></tr><tr><td class="m_-7386052612027637854m_3682523568688573026gmail-imageCaption"><span style="font-family:verdana,sans-serif">Linux Debugging Tools cover</span></td></tr></tbody></table><span style="font-family:verdana,sans-serif"> to the above - highly recommended</span><ul><li><span style="font-family:verdana,sans-serif"><a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://jvns.ca/zines/" rel="nofollow" target="_blank">zines</a> -> <a class="m_-7386052612027637854m_3682523568688573026gmail-wiki_link_ext" href="http://jvns.ca/debugging-zine.pdf" rel="nofollow" target="_blank">debugging linux</a> from last week, direct inspiration for this talk</span></li></ul></li></ul><br>
<br>
<br>
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<br>
<br><div><i><b>​Ricky</b> notes that <b>LISA'16 is in Boston again</b>, DEC 4-6 .</i> <a><span style="font-family:verdana,sans-serif">​https://www.usenix.org/confer<wbr>ence/lisa16 </span></a><br></div><div><i>Plenaries include Brendan Gregg (Linux kernel 4.x new tracing),  the Radia Perlman and That Tom Limoncelli.<br></i></div><div><i>It's more for Sysadmins & DevOps but cool stuff about the OS is cool, and understanding how our Apps affect Sysadmins is good too.</i><br></div><br>Note NO NOVEMBER tech meeting -<br> <span style="color:rgb(255,0,0);font-family:"arial black",gadget,sans-serif">2nd Tuesday in November in a Leap year is Election Day <br>- </span>I
 presume most people will be watching a different channel that night. <br>Do
 we want a different night or week ? We usually do social in December.<span class="m_-7386052612027637854HOEnZb"><font color="#888888"><br clear="all"><br>-- <br><div class="m_-7386052612027637854m_3682523568688573026gmail_signature"><div dir="ltr">Bill Ricker<br><a href="mailto:bill.n1vux@gmail.com" target="_blank">bill.n1vux@gmail.com</a><div><a href="https://www.linkedin.com/in/n1vux" target="_blank">https://www.linkedin.com/in/n1<wbr>vux</a> <br></div></div></div>
</font></span></div></div>
</blockquote></div><br><br clear="all"><br>-- <br><div class="m_-7386052612027637854gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Bill Ricker<br><a href="mailto:bill.n1vux@gmail.com" target="_blank">bill.n1vux@gmail.com</a><div><a href="https://www.linkedin.com/in/n1vux" target="_blank">https://www.linkedin.com/in/<wbr>n1vux</a> <br></div></div></div>
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</div></div></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Bill Ricker<br><a href="mailto:bill.n1vux@gmail.com" target="_blank">bill.n1vux@gmail.com</a><div><a href="https://www.linkedin.com/in/n1vux" target="_blank">https://www.linkedin.com/in/n1vux</a> <br></div></div></div>
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