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PurePerformance

Author: PurePerformance

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The brutal truth about digital performance engineering and operations.

Andreas (aka Andi) Grabner and Brian Wilson are veterans of the digital performance world. Combined they have seen too many applications not scaling and performing up to expectations. With more rapid deployment models made possible through continuous delivery and a mentality shift sparked by DevOps they feel it’s time to share their stories. In each episode, they and their guests discuss different topics concerning performance, ranging from common performance problems for specific technology platforms to best practices in development, testing, deploying and monitoring software performance and user experience. Be prepared to learn a lot about metrics.

Andi & Brian both work at Dynatrace, where they get to witness more real world customer performance issues than they can TPS report at.
216 Episodes
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Tuning the JVM GC to reduce garbage collection time will speed up application performance. If you agree with that statement then I encourage you to listen to this episode where I have Stefano Doni, CTO at Akamas, walk us through 4 Java Tuning Facts & Myths. He is going into details why even in 2021 with great improvements in the JVM it is still important to optimize the JVM specific to the environment, workload and application behavior. If you want some visuals try to catch his presentation from this years Performance Summit called “How AI optimization will debunk 4 long standing Java tuning myths”To follow up with Stefano check out their resources such as their tutorials on explore.akamas.io, check out their blog posts or videos on their new website akamas.io or follow them on twitter @akamaslabsLinks from the Show:Stefano on Linkedinhttps://www.linkedin.com/in/stefanodoni/YouTube: How AI optimization will debunk 4 long-standing Java tuning mythshttps://www.youtube.com/watch?v=9VvaxATyYsAAkamas Tutorialshttps://explore.akamas.io/Akamas websitehttps://www.akamas.io/Akamas on Twitterhttps://twitter.com/AkamasLabs
Understanding the secret behind the turbo button on his first 486 PC motivated our guest to study computer science. That decision started a journey making him constantly learn new technology ranging from coding languages, operational tasks as well as a focusing on improving developer experiences and boosting developer productivityListen in and hear from Michael Friedrich (@dnsmichi), The Ops in Dev Evangelist at GitLab, on why it is important to enable developers to design and develop code that makes it easier for DevOps and SREs to operate and automate. “The biggest challenge is code that breaks production but where there is no clear evidence for DevOps & SREs about the root cause”Make sure to join Michael’s #EveryCanContribute and follow his advocacy such as DockerCon 2021 on From Infrastructure as Code to Cloud Native Deployments in 5 MinutesLinks from show:Linkedinhttps://www.linkedin.com/in/dnsmichi/Twitterhttps://twitter.com/dnsmichiEveryone Can Contributehttps://everyonecancontribute.com/From Infrastructure as Code to Cloud Native Deployments in 5 Minhttps://docker.events.cube365.net/dockercon-live/2021/content/Videos/emEjNyA4WmBSv8BW2
“Because 9 out of 10 load testing projects fail due to ignorance and outdated thinking about load testing!”. That was the answer Leandro Melendez, aka Señor Performo, gave us when asking him why the world needs yet another book about load testing.In too many projects Leandro has to remind and educate decision makers and practitioner’s about load testing best practices, how to ask the right questions and how to approach a project from start to finish. His book “The hitchhiking guide to load testing projects” is a fun and edu-taining read for people that are new to the trade as well as seasoned performance engineers.For more content from Senor Performo check out his PerfBytes Espanol Podcast, his Spanish YouTube channel and all the performance engineering presentations he has been given over the years.https://www.srperf.com/podcast/https://www.srperf.com/el-youtube-channel/https://www.srperf.com/presenter/Pre-order the book herehttps://www.amazon.com/dp/B09C4ZT1LB
Building products that people want to use and activating users to try out new capabilities has to be the ultimate goal of every product manager. User and usage data is the enabler to make the right decisions. But data doesn’t come for free – and making the right decisions is something that data alone doesn’t guaranteeListen in and learn from Manav Chugh, product enthusiast, medium blogger and organizer of ProductTank Linz, what inspired him to choose the path from Zero to Data-Driven Product Manager. In our conversation we cover how to capture what data, the importance of data privacy, what we can learn from companies that do data-driven design well and why he loves organizations such as www.ecosia.org.Links from show:Manav on Linkedinhttps://www.linkedin.com/in/manavchugh/Manav's Medium Bloghttps://manav77-chugh.medium.com/ProductTank Linzhttps://www.mindtheproduct.com/producttank/linzEcosia Search Enginehttps://www.ecosia.org/
Like many frontend developers, Sergey Chernyshev was inspired in the late 2000 by Steve Souders to contribute to and grow the web performance community. Not only did he launch the Meed4SPEEDs as part of the New York Web Performance Meetup. He also worked for meetup.com helping them to improve web performance and user experience. Over the past years Sergey contributed to many projects such as WebPageTest.org, UX Capture Library, Jamstack and more.Tune in to this episode, learn what has and what hasn’t changed in the quest for better user experience. Get a quick start on Core Web Vitals and current challenges. Most important: get inspired to contribute back to this community.Llinks we discussed during the podcast are here:Sergy on LinkedIn https://www.linkedin.com/in/sergeychernyshev/Steve Souders Page: https://stevesouders.com/NY Web Performance Meetup: https://www.meetup.com/Web-Performance-NY/WebPageTest: https://www.webpagetest.org/Github UX Capture: https://github.com/ux-capture/ux-captureJamstack: https://jamstack.org/WebVitals: https://web.dev/vitals/CrUX: https://developers.google.com/web/tools/chrome-user-experience-reportEdge Compute:CloudFlare Workers: https://workers.cloudflare.com/Fastly: https://www.fastly.com/products/edge-compute/serverlessPWA Stats: https://www.pwastats.com/Next.JS approach to SSR: https://nextjs.org/docs/basic-features/pages
In his SLOConf talk Production load testing as a guardrail for SLOs and in his blog Production Load Testing, Hassy Veldstra, founder of artillery.io makes the case for load testing in production. It helped him in various organizations to establish SLOs (Service Level Objectives) and change the way engineers think about performance. He got inspired by Building Evolutionary Architectures which introduces the concept of performance as a fitness function.Tune in into our conversation, hear our arguments pro and contra load testing in the various environments and learn why in the end we agreed on the fact that SLOs – while nothing really new – are a great chance to re-define performance engineering.Linkedinhttps://www.linkedin.com/in/hveldstra/SLOconf: Production load testing as a guardrail for SLOs - by Hassy Veldstrahttps://www.youtube.com/watch?v=Y20K1mJB6tkBlog: Load testing. In production.http://veldstra.org/production-load-testing/Artillery Websitehttps://artillery.io/Book: Building Evolutionary Architectureshttps://www.thoughtworks.com/books/building-evolutionary-architectures
How do you convince an organization that just went through a 2 year DevOps transformation to continue the journey by applying SRE practices? What is SRE anyway? What are good SLOs? And how do you get development teams to take responsibility for their code in production?Bart Enkelaar, Lead Site Reliability Engineer at bol.com, not only got their organization to apply SRE practices, define good SLOs and got dev teams to rotate on-call duties. He also followed the advice of Margaret, Chief Platform Officer, to bring his personal passion to the job. This led to inspiring and educating the community about SRE and SLO through music. To see what I mean check out Barts The Game of SLOs – a three part reliability musical from SLOConf or his funny tech conversations at Friendly Tech Chats.Linkedin - https://www.linkedin.com/in/bart-enkelaar-02242710/Margaret, Chief Platform Officer - https://www.youtube.com/watch?v=hy1gUEhbnBMGame of SLOs: A 3 part reliability musical - https://www.youtube.com/watch?v=Y53Pho93i-kFriendly Tech Chats - https://www.youtube.com/channel/UChHHWkO537q6Yp2dXtJpOzQ/featured
While some think about the late Austrian musician, Dan POP and the CNCF community thinks about modern security when it comes to Falco.Listen in and hear directly from Dan (@danpopnyc) who, besides doing many things in the CNCF community, also hosts POPCAST where he started connecting technology leaders during the last year. In the podcast you learn a lot about security, the power of eBPF and how Falco aims to contribute to runtime security like k8s contributed to distributed computing.Here the additional links we brought up during the conversation:Dan on Linkedinhttps://www.linkedin.com/in/danpapandrea/Dan on Twitterhttps://twitter.com/danpopnycPopcast Podcasthttps://github.com/danpopSD/popcastCyber Defenders Career Guide by Alyssa Millerhttps://www.manning.com/books/cyber-defenders-career-guideCloud Native TVhttps://www.twitch.tv/cloudnativefdnCNCF Tag Securityhttps://github.com/cncf/tag-securityFalco Tools, Frameworks & Articleshttps://github.com/developer-guy/awesome-falcoFalco Bloghttps://www.cncf.io/blog/2020/12/14/join-pop-falco-org/Falco Der Kommissarhttps://www.youtube.com/watch?v=8-bgiiTxhzM
Wonder what you learn when building k8s from scratch for a large enterprise? Wonder what you learn when automating delivery by connecting your different DevOps tools together?Nana Janashia runs one of the most successful technical YouTube channels called TechWorld with Nana where she covers topics ranging from containers, docker, k8s, cloud native and DevOps. She basically takes her lessons learned and explains technologies and concept in a very easy way especially for folks that want to get started with.In this episode we focus a lot on DevOps, what the right trades of a DevOps engineer are and how to get started. Thanks Nana for your time and all the additional resources we talked about during the episode that are listed below:DevOps Bootcamp: https://www.techworld-with-nana.com/devops-bootcampDevOps Roadmaps for Humans with Bret Fisher: https://www.youtube.com/watch?v=UXf2c76KAyADevOps Roadmap: https://roadmap.sh/devopsLinkedin Profile: https://www.linkedin.com/in/nana-janashia/TechWorld with Nana YouTube channel: https://www.youtube.com/channel/UCdngmbVKX1Tgre699-XLlUA
Have you ever thought about reorganizing data allocation based on production telemetry data? Have you ever thought about shifting compiler budgets to parts of your code that is heavily executed based on profiling information captured from your real end users? Whether the answer is yes or no you will be fascinated by Taras Tsugrii, Software Engineer at Facebook, who is sharing his experience on optimizing everything from compilers, to databases, distributed systems or delivery pipelines.If you want more after listening to this episode check out his recent talk at Neotys PAC titled “Old pattern powering modern tech”, subscribe to his substack newsletter, his hashnode blog, or the conference recordings of Performance Summit and Scaling Continuous Delivery.https://www.linkedin.com/in/taras-tsugrii-8117a313/https://www.youtube.com/watch?v=itOCQvk_LAshttps://softwarebits.substack.com/https://softwarebits.hashnode.dev/https://www.youtube.com/channel/UCt50fEvgrEuN9fvya8ujVzAhttps://www.youtube.com/channel/UCWf9HxiBudKLzCFtgAAz8XQ
Googles Census, OpenCencus, OpenTelemetry and AWS Distro for OpenTelemetry. Our guest Jaana Dogan, Principal Engineer at AWS, has been working in observability over many years and definitely had a positive impact on the where OpenTelemetry is today. In this episode Jaana (@rakyll) explains which problems the industry, and especially cloud vendors, try to solve with their investment in open source standards such as OpenTelemetry. She gives an update where OpenTelemetry is, the next upcoming milestones such as metrics and logs and what a bright future with OpenTelemetry being widely adopted could bring.https://twitter.com/rakyllIf you are interested in learning more – here are the links we discussed during the podcast: https://github.com/open-telemetryhttps://github.com/open-telemetry/opentelemetry-specificationhttps://github.com/open-telemetry/opentelemetry-protohttps://github.com/open-telemetry/opentelemetry-collectorhttps://github.com/open-telemetry/communityhttps://o11yfest.org/
Performance Engineering is not about running a performance test twice a year. That is just a poor attempt trying to validate your non functional requirements.Roman Ferstl, Managing Directory at Triscon, has discovered his love for performance engineering while optimizing code for software used in a space program. He then founded Triscon who is now helping to establish and scale performance engineering at large enterprises. In this episode we get his insights on how he approaches a new project, which bottlenecks to address first and how to motivate more people within an organization to invest in performance engineering.If you want to learn more don’t miss to check out Roman’s presentation from Perform 2021 titled “Turbocharging your Performance Engineering teams to scale efficiently”https://www.linkedin.com/in/roman-ferstl/https://www.triscon-it.com/en/https://perform.dynatrace.com/2021-americas/breakouts-single-day-3-turbocharging-your-performance-engineering-teams
To k8s or not – that should be the first question to answer before considering k8s. Granted – in many cases k8s is going to be the right choice but don’t just default to k8s because its hip or cool.In this episode we have Christian Heckelmann (@wurstsalat), DevOps Engineer at ERT, talking about his journey with k8s which started with installing k8s 1.9 on bare metal. He gives a lot of great advice based on his presentation “How not to start with k8s” such as Understand Networking, Don’t use :latest, Set Resource Limits, Train The People, Provide Templates and more.To get started with Kubernetes we encourage you to look at the YouTube Tutorials posted on TechWorld with Nana.https://twitter.com/wurstsalathttps://docs.google.com/presentation/d/1EL9OYe-1eOPXh6U8SMHnQxs8pcmr01d-uwoWoFnzUaY/edit#slide=id.g5420f4ebeb_0_5https://www.youtube.com/channel/UCdngmbVKX1Tgre699-XLlUA
You heard about Continuous Integration, Continuous Delivery and Continuous Deployment. Liquid Software aims to provide the next step towards Trusted Continuous Updates in the DevOps World.In this episode Baruch Sadogursky, DevOps Advocate from JFrog, explains how as engineers we need to add “Updateability” to our non-functional requirements and how product managers and marketing have to forget about traditional releases but think about incremental delivery of value. Baruch (@jbaruch) also promised to send everyone a hard copy of his book “Liquid Software” if you send him a direct message – so – make sure you do that and also check out the details on our discussion of uniquely identifying artifacts through Build-Info.https://www.linkedin.com/in/jbaruch/https://twitter.com/jbaruchhttps://drive.google.com/file/d/1PUb67FxM-eTtdyLNGPc-fGTcCJii-keE/viewhttps://github.com/jfrog/build-info
Software security is about securing websites against malicious attacks or using firewalls to prevent hackers entering your enterprise network. While this is part of software security there is much more that needs to be done – especially as more organizations are developing critical software it is important to protect the whole software delivery lifecycle from any malicious attacks along the supply chain.In this episode we have Michael Plank, Technical Product Manager at Dynatrace, talk about his latest blog post titled How Dynatrace protects its software development and delivery life cycle against supply chain attacks. We learn about attack vectors from development workstation until production deployment. He covers the strategies ranging from static to dynamic code analysis, vulnerability detection or code signatures. Tune in and learn that building secure software is more than ensuring your users have hard to crack passwords!https://www.dynatrace.com/news/blog/how-dynatrace-protects-its-software-development-and-delivery-life-cycle-against-supply-chain-attacks/
If you are not a gamer you may have never heard about Cyberpunk 2077. If you are – you may know about the challenges during their latest release.Dave Farley (@davefarley77), Co-Author of best seller Continuous Delivery, has been an engineering large and complex systems for decades. His work helped elevate our industry around Continuous Delivery and DevOps. In this episode he shares his learnings from failed projects like Cyberpunk as well as his own latest experiences around that picking the latest technology might be fashionable but is not always the smartest choice.To learn more about Dave check out Continuous Delivery website that also links to his YouTube Channel hosting some of the episodes he was referencing in the podcast.https://twitter.com/davefarley77https://www.amazon.com/Continuous-Delivery-Deployment-Automation-Addison-Wesley/dp/0321601912#ace-g9859629705https://www.continuous-delivery.co.uk/https://www.youtube.com/channel/UCCfqyGl3nq_V0bo64CjZh8g
Nobody has foreseen the global pandemic that put a lot of chaos in all our lives recently. Let’s just hope we learn from 2020 to better prepare on what might be next.The same preparation and learning also goes for Chaos in our distributed systems that power our digital lives. And to learn from those stories and better prepare for common resiliency issues we brought back Ana Medina (@ana_m_medina), Chaos Engineer at Gremlin. As a follow up to our previous podcast with Ana, she is now sharing several stories from her chaos engineering engagements across different industries such as finance, eCommerce or travel. Definitely worth listening in as Chaos Engineering was also put into the Top 5 Technologies to look into 2021 by CNCF.https://twitter.com/Ana_M_Medinahttps://www.spreaker.com/user/pureperformance/why-you-should-look-into-chaos-engineerihttps://twitter.com/CloudNativeFdn/status/1329863326428499971
When moving to microservice architectures its time to re-think continuous delivery. Just as many software services rely on a core data analytics engine to make better automated decisions we need to apply the same for continuous delivery. We can assess the risk of every microservice deployment based on data from production and the desired change of configuration. We can assess the potential blast radius and mitigate it through modern delivery options such as blue/green, canaries or feature flags.Tracy Ragan, Creator & CEO of DeployHub, CDF board member and DevOps Institute Ambassador shares her thoughts on why we need to move to smarter data-driven delivery pipelines. Tracy (@TracyRagan) gives us insights into why not every microservice is created equal and what approaches we can take to better control updates that contain multiple microservice updates.Also make sure to check out their latest project Ortelius and take Tracy up on a virtual coffee chat as discussed in our podcast!https://www.linkedin.com/in/tracy-ragan-oms/https://twitter.com/TracyRaganhttps://github.com/orteliushttps://go.oncehub.com/15-30MinuteVirtualCoffeeWithTracy
K8s enables organizations to more easily deploy their containerized solutions as it takes away a lot of the operational tasks which are built-into k8s. This in theory means that you can run your software anywhere and provide it as SaaS offering or deploy it behind corporate firewalls for those customers that demand an on-premise installation.In this episode we have Marc Campbell, Founder and CTO of Replicated, where they help the k8s community to deliver and manage apps on k8s anywhere. For anyone looking into running their apps on k8s you will learn the challenges of Day 1 (delivery, install) and Day 2 (operation, monitoring, troubleshooting) operations. Marc shares common performance and scalability challenges and how to prepare for them during development.In this episode we have Marc Campbell, Founder and CTO of Replicated, where they help the k8s community to deliver and manage apps on k8s anywhere. For anyone looking into running their apps on k8s you will learn the challenges of Day 1 (delivery, install) and Day 2 (operation, monitoring, troubleshooting) operations. Marc shares common performance and scalability challenges and how to prepare for them during development.https://www.linkedin.com/in/campbe79/https://www.replicated.com/https://www.heavybit.com/library/podcasts/the-kubelist-podcast/ep-7-keptn-with-andreas-grabner-of-dynatrace/https://troubleshoot.sh/https://kots.io/
Stefan Frandl, Development Director, has a single digit employee number at Dynatrace and therefore seen a lot of agile transformation over the past 15 years – growing from a startup in Linz, Austria to now 800+ engineers across globally distributed labs. A visit to several “unicorns” such as Google, Facebook and Slack triggered the latest agile transformation.In this episode Stefan walks us through the implementation of the changes we discussed with Andrea Holl in her episode on “Scaling Agile at Dynatrace”. He shares the challenges around growing responsibilities of team leads, work left half-finished, overhead on hand-over and cross team collaboration. He then introduces us to the current structure and processes at Dynatrace such as Team Captains, Product Owners and Agile Advocates as well as Dev Directors and Lead Product Engineers. While Dynatrace has seen many benefits already, the journey is still ongoing as Dynatrace is continuously rethinking and improving the way we work and provide value to our customers!https://www.linkedin.com/in/stefan-frandl-aa86723/https://www.spreaker.com/user/pureperformance/scaling-agile-at-dynatrace-with-andrea-h
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