Matt Godbolt's guest appearances

Matt Godbolt

CppCast

Data Science Salon Podcast

Matt Fernandez

Scott Meyers

Ben Smith

Pat Woowong

Chris Butler

Jackie Kay

Steve Klabnik

David Stone

Jeri Ellsworth

Sara Chipps

Travis CI

DAVID ADLER

Jason Turner

Matt Butler

Sarah Smith

OwlTail

Data scientists and ML engineers write a lot of code: building data pipelines, wiring up models, and sometimes translating concepts from research papers into algorithms.  Once in a while, that code runs into performance problems.  These can be painful to debug when you don't come from a formal software development background.  That's why Formulatedby's Senior Content Advisor Q McCallum rang up Matt Godbolt to learn the deep details of software testing, tracing performance bugs, working with data at scale, and how data scientists can work with developers to prepare their code for a production handoff.Matt Godbolt has more than 30 years' experience writing code.  He's spent most of that time working in the performance-focused environments of console video games, high-frequency trading (HFT), and algorithmic trading.  Matt is the creator of the Compiler Explorer website, and also co-host of the Two's Complement podcast.(Note from Q: My audio is a little choppy, but Matt's is perfect.  And you're here to hear him, anyway...) Matt and Q mentioned a few links during their talk:Michael Abrash’s Zen of Code OptimizationBrendan Gregg’s Flame GraphsMatt's blog and videosRelated to the discussion on performance enhancements in Quake, Matt has a video on “how Wolfenstein worked”Compiler Explorer

<p>Data scientists and ML engineers write a lot of code: building data pipelines, wiring up models, and sometimes translating concepts from research papers into algorithms.  </p><p>Once in a while, that code runs into performance problems.  These can be painful to debug when you don't come from a formal software development background.  That's why Formulatedby's Senior Content Advisor <a href="https://qethanm.cc/" rel="nofollow" target="_blank">Q McCallum</a> rang up <a href="https://twitter.com/mattgodbolt" rel="nofollow" target="_blank">Matt Godbolt</a> to learn the deep details of software testing, tracing performance bugs, working with data at scale, and how data scientists can work with developers to prepare their code for a production handoff.</p><p>Matt Godbolt has more than 30 years' experience writing code.  He's spent most of that time working in the performance-focused environments of console video games, high-frequency trading (HFT), and algorithmic trading.  Matt is the creator of the Compiler Explorer website, and also co-host of the <a href="https://www.twoscomplement.org/" rel="nofollow" target="_blank">Two's Complement podcast</a>.</p><p>(Note from Q: My audio is a little choppy, but Matt's is perfect.  And you're here to hear him, anyway...)</p><p> </p><p>Matt and Q mentioned a few links during their talk:</p><ul><li><a href="https://www.amazon.com/Zen-Code-Optimization-Ultimate-Software/dp/1883577039" rel="nofollow" target="_blank">Michael Abrash’s Zen of Code Optimization</a></li><li><a href="http://www.brendangregg.com/flamegraphs.html" rel="nofollow" target="_blank">Brendan Gregg’s Flame Graphs</a></li><li>Matt's <a href="https://xania.org/" rel="nofollow" target="_blank">blog</a> and <a href="https://www.youtube.com/c/MattGodbolt/videos" rel="nofollow" target="_blank">videos</a></li><li>Related to the discussion on performance enhancements in Quake, Matt has a video on “<a href="https://www.youtube.com/watch?v=eOCQfxRQ2pY" rel="nofollow" target="_blank">how Wolfenstein worked</a>”</li><li><a href="https://godbolt.org/" rel="nofollow" target="_blank">Compiler Explorer</a></li></ul>

Matt Godbolt: Software Testing, Performance Tuning, and Code Handoff for Data Scientists

Rob and Jason are joined by Matt Godbolt to talk about the Meltdown and Spectre vulnerabilities and how they affect C++ Programmers.        Matt is a developer at trading firm DRW.  Before that he's worked at Google, run a C++ tools company, and spent over a decade in the games industry making PC and console games.  He is fascinated by performance and created Compiler Explorer, to help understand how C++ code ends up looking to the processor.  When not performance tuning C++ code he enjoys writing emulators for 8-bit computers in Javascript. News  More C++ Idioms C++ Tips of the Week (Abseil) Retpoline: a software construct for preventing branch-target-injection GCC 8.0 supports std::filesystem now  Matt Godbolt  @mattgodbolt Matt Godbolt's blog  Links  Compiler Explorer CppCon 2017: Matt Godbolt "What Has My Compiler Done for Me Lately? Unbolting the Compiler's Lid" GOTO 2016: Matt Godbolt "Emulating a 6502 system in Javascript" GOTO 2014: Matt Godbolt "x86 Internals for Fun &amp; Profit" Patreon: Matt Godbolt is creating Compiler Explorer Finding a CPU Design Bug in the Xbox 360 Meltdown and Spectre Vulnerability Note VU#584653  Sponsors  Backtrace Embo++  Hosts  @robwirving @lefticus

Rob and Jason are joined by Matt Godbolt to talk about the Meltdown and Spectre vulnerabilities and how they affect C++ Programmers.<br>        <p>Matt is a developer at trading firm DRW.  Before that he's worked at Google, run a C++ tools company, and spent over a decade in the games industry making PC and console games.  He is fascinated by performance and created Compiler Explorer, to help understand how C++ code ends up looking to the processor.  When not performance tuning C++ code he enjoys writing emulators for 8-bit computers in Javascript.</p> <h3>News</h3> <ul> <li><a href="https://en.wikibooks.org/wiki/More_C%2B%2B_Idioms" rel="nofollow" target="_blank">More C++ Idioms</a></li> <li><a href="https://abseil.io/tips/" rel="nofollow" target="_blank">C++ Tips of the Week (Abseil)</a></li> <li><a href="https://support.google.com/faqs/answer/7625886" rel="nofollow" target="_blank">Retpoline: a software construct for preventing branch-target-injection</a></li> <li><a href="https://www.reddit.com/r/cpp/comments/7o9kg6/gcc_80_support_stdfilesystem_include_filesystem/" rel="nofollow" target="_blank">GCC 8.0 supports std::filesystem now</a></li> </ul> <h3>Matt Godbolt</h3> <ul> <li><a href="https://twitter.com/mattgodbolt" rel="nofollow" target="_blank">@mattgodbolt</a></li> <li><a href="http://xania.org/" rel="nofollow" target="_blank">Matt Godbolt's blog</a></li> </ul> <h3>Links</h3> <ul> <li><a href="https://godbolt.org/" rel="nofollow" target="_blank">Compiler Explorer</a></li> <li><a href="https://www.youtube.com/watch?v=bSkpMdDe4g4" rel="nofollow" target="_blank">CppCon 2017: Matt Godbolt "What Has My Compiler Done for Me Lately? Unbolting the Compiler's Lid"</a></li> <li><a href="https://www.youtube.com/watch?v=7WuRq-Wmw5o" rel="nofollow" target="_blank">GOTO 2016: Matt Godbolt "Emulating a 6502 system in Javascript"</a></li> <li><a href="https://www.youtube.com/watch?v=hgcNM-6wr34" rel="nofollow" target="_blank">GOTO 2014: Matt Godbolt "x86 Internals for Fun &amp; Profit"</a></li> <li><a href="https://www.patreon.com/mattgodbolt" rel="nofollow" target="_blank">Patreon: Matt Godbolt is creating Compiler Explorer</a></li> <li><a href="https://randomascii.wordpress.com/2018/01/07/finding-a-cpu-design-bug-in-the-xbox-360/" rel="nofollow" target="_blank">Finding a CPU Design Bug in the Xbox 360</a></li> <li><a href="https://meltdownattack.com/" rel="nofollow" target="_blank">Meltdown and Spectre</a></li> <li><a href="https://www.kb.cert.org/vuls/id/584653" rel="nofollow" target="_blank">Vulnerability Note VU#584653</a></li> </ul> <h3>Sponsors</h3> <ul> <li><a href="https://www.backtrace.io/cppcast" rel="nofollow" target="_blank">Backtrace</a></li> <li><a href="https://embo.io" rel="nofollow" target="_blank">Embo++</a></li> </ul> <h3>Hosts</h3> <ul> <li><a href="https://twitter.com/robwirving" rel="nofollow" target="_blank">@robwirving</a></li> <li><a href="https://twitter.com/lefticus" rel="nofollow" target="_blank">@lefticus</a></li></ul>

Meltdown and Spectre

Rob and Jason are joined by Matt Godbolt to discuss the online Compiler Explorer project.        Matt is a developer at trading firm DRW.  Before that he's worked at Google, run a C++ tools company, and spent over a decade in the games industry making PC and console games.  He is fascinated by performance and created GCC Explorer, to help understand how C++ code ends up looking to the processor.  When not performance tuning C++ code he enjoys writing emulators for 8-bit computers in Javascript. News  Microsoft releases CNTK, its open source deep learning toolkit C++ Language Support for Pattern Matching and Variants VS2015 Update 2's STL is C++17 Feature Complete C++Now 2016 Submission Deadline  Matt Godbolt  @mattgodbolt Matt Godbolt's blog  Links  Compiler Explorer x86 Internals for Fun &amp; Profit

Rob and Jason are joined by Matt Godbolt to discuss the online Compiler Explorer project.<br>        <p>Matt is a developer at trading firm DRW.  Before that he's worked at Google, run a C++ tools company, and spent over a decade in the games industry making PC and console games.  He is fascinated by performance and created GCC Explorer, to help understand how C++ code ends up looking to the processor.  When not performance tuning C++ code he enjoys writing emulators for 8-bit computers in Javascript.</p> <h3>News</h3> <ul> <li><a href="https://blogs.microsoft.com/next/2016/01/25/microsoft-releases-cntk-its-open-source-deep-learning-toolkit-on-github/" rel="nofollow" target="_blank">Microsoft releases CNTK, its open source deep learning toolkit</a></li> <li><a href="http://davidsankel.com/uncategorized/c-language-support-for-pattern-matching-and-variants/" rel="nofollow" target="_blank">C++ Language Support for Pattern Matching and Variants</a></li> <li><a href="http://blogs.msdn.com/b/vcblog/archive/2016/01/22/vs-2015-update-2-s-stl-is-c-17-so-far-feature-complete.aspx" rel="nofollow" target="_blank">VS2015 Update 2's STL is C++17 Feature Complete</a></li> <li><a href="http://cppnow.org/2016-conference/announcements/2015/11/17/call-for-submission.html" rel="nofollow" target="_blank">C++Now 2016 Submission Deadline</a></li> </ul> <h3>Matt Godbolt</h3> <ul> <li><a href="https://twitter.com/mattgodbolt" rel="nofollow" target="_blank">@mattgodbolt</a></li> <li><a href="http://xania.org/" rel="nofollow" target="_blank">Matt Godbolt's blog</a></li> </ul> <h3>Links</h3> <ul> <li><a href="https://gcc.godbolt.org/" rel="nofollow" target="_blank">Compiler Explorer</a></li> <li><a href="https://www.youtube.com/watch?v=hgcNM-6wr34" rel="nofollow" target="_blank">x86 Internals for Fun &amp; Profit</a></li></ul>