There are many ways to optimize your website, and it’s hard to know where to start. In this webinar we’ll show you five top performance optimizations and explain how each will impact your load time and order. We’ll also share tips and tricks on how to apply each, since the devil’s in the details. We’ll focus on the following five optimizations:
* Domain Sharding
* Consolidation
* Inlining
* Predict Head
* Asynchronous Javascript Loading
Mobile & Desktop Cache 2.0: How To Create A Scriptable CacheBlaze Software Inc.
In this webinar, we’ll describe how you can build your own Scriptable Cache based on HTML5 localStorage, making Mobile cache work and giving Desktop Cache a boost. We’ll discuss the value of a Scriptable Cache, show the key elements you’ll need to create, and mention some of the pitfalls you need to beware of.
Did you know that 80% to 90% of the user's page-load time comes from components outside the firewall? Optimizing performance on the front end (e.g. from the client side) can enhance the user experience by reducing the response times of your web pages and making them load and render much faster.
Mobile & Desktop Cache 2.0: How To Create A Scriptable CacheBlaze Software Inc.
In this webinar, we’ll describe how you can build your own Scriptable Cache based on HTML5 localStorage, making Mobile cache work and giving Desktop Cache a boost. We’ll discuss the value of a Scriptable Cache, show the key elements you’ll need to create, and mention some of the pitfalls you need to beware of.
Did you know that 80% to 90% of the user's page-load time comes from components outside the firewall? Optimizing performance on the front end (e.g. from the client side) can enhance the user experience by reducing the response times of your web pages and making them load and render much faster.
PostgreSQL connections at scale was the presentation by our external speaker at our 8th opensource database meetup. The presentation helps you comprehend on database connections with its cost, gauge the need for a connection pooler, Pgbouncer overview with its features, monitoring, and deployment best practices.
In this short presentation, Subhash Yadav of Valuebound has explained about “Caching in Drupal 8.” A cache is a collection of data of the same type stored in a device for future use. Caches are found at every level of a content's journey from the original server to the browser.
Accelerating Nginx Web Server PerformanceBruce Tolley
This presentation summarizes test data recently presented at the Nginx User Summit in San Francisco. It shows how user level networking coupled with the right network choices can accelerate web server performance three fold.
my slides about running PHP on Nginx / tips and tricks for high performance websites, presented on the PHP Wellington meetup in New Zealand in April 2015
PostgreSQL connections at scale was the presentation by our external speaker at our 8th opensource database meetup. The presentation helps you comprehend on database connections with its cost, gauge the need for a connection pooler, Pgbouncer overview with its features, monitoring, and deployment best practices.
In this short presentation, Subhash Yadav of Valuebound has explained about “Caching in Drupal 8.” A cache is a collection of data of the same type stored in a device for future use. Caches are found at every level of a content's journey from the original server to the browser.
Accelerating Nginx Web Server PerformanceBruce Tolley
This presentation summarizes test data recently presented at the Nginx User Summit in San Francisco. It shows how user level networking coupled with the right network choices can accelerate web server performance three fold.
my slides about running PHP on Nginx / tips and tricks for high performance websites, presented on the PHP Wellington meetup in New Zealand in April 2015
Web Performance, Scalability, and Testing Techniques - Boston PHP MeetupJonathan Klein
I gave this talk on 4/27/11 at the Boston PHP Meetup Group. It covers both server side and client side optimizations, as well as monitoring tools and techniques.
Caching and tuning fun for high scalability @ FOSDEM 2012Wim Godden
Caching has been a 'hot' topic for a few years. But caching takes more than merely taking data and putting it in a cache : the right caching techniques can improve performance and reduce load significantly. But we'll also look at some major pitfalls, showing that caching the wrong way can bring down your site. If you're looking for a clear explanation about various caching techniques and tools like Memcached, Nginx and Varnish, as well as ways to deploy them in an efficient way, this talk is for you.
High Performance Php My Sql Scaling TechniquesZendCon
This talk will discuss issues and solutions when attempting to scale PHP and MySQL to high volume websites (such as digg.com). It will discuss some of the problems at hand, and go into (at a high level) some of the solutions, such as using memcache, DB partitioning, etc. As well as how to handle these solutions within PHP.
Watch the webinar on demand: https://www.nginx.com/resources/webinars/maximize-php-performance-with-nginx
Is your PHP app slowing to a crawl? PHP is a powerful programming language that powers roughly 80% of the internet, but it’s unfortunately subject to performance problems – as we all know. Luckily, for thousands of PHP-based applications, some relatively simple changes can lead to noticeable improvements in performance.
NGINX has greatly improved application performance for more than 150 million sites in production today. Using NGINX greatly improves the performance of PHP apps with features such as caching, load balancing, HTTP/2 support, and more, included in open source NGINX software and in our commercial-grade application delivery platform NGINX Plus.
How to secure your web applications with NGINXWallarm
Your website is probably vulnerable and gonna be hacked one day. Here're 15 ready-to-use tips on how you can make your web applications more secure. How to protect web application from hacker attacks and mitigate DDoS with NGINX web server.
Joined by Rick Nelson, Technical Solutions architect from NGINX Server Density take you though the do's and don'ts of monitoring NGINX. Critical and non critical metrics to monitor, important alerts to configure and the best monitoring tools available.
How to be Successful with Responsive Sites (Koombea & NGINX) - EnglishKoombea
Can't decide if your organization should build a mobile app or responsive website? Do you interact with consumer-facing products or large scale developments?
This guide gives you an idea of what Responsive is, why you should use it, and then DIGS deep into the technical aspect and how to optimize for performance.
By: David Bohorquez & Rick Nelson
When one server just isn’t enough, how can you scale out? In this webinar, you'll learn how to build out the capacity of your website. You'll see a variety of scalability approaches and some of the advanced capabilities of NGINX Plus.
View full webinar on demand at http://nginx.com/resources/webinars/nginx-load-balancing-software/
The 3 Models in the NGINX Microservices Reference ArchitectureNGINX, Inc.
On-demand recording: https://nginx.webex.com/nginx/lsr.php?RCID=82f9c75402528464d3625813e313f8a4
The new NGINX Microservices Reference Architecture (MRA) goes into depth on the entire architecture. Join this webinar to explore all three models in the MRA: the Proxy Model, the Router Mesh Model, and the Fabric Model.
The Proxy Model gives you a leg up into microservices, including support for API gateways. The Router Mesh Model adds power, with a second server exclusively for microservices support. And the Fabric Model pairs an NGINX Plus instance with every microservice instance for secure SSL/TLS communications between service instances.
Check out this webinar to learn about building a secure and scalable microservices app:
* When to take the leap into deploying microservices
* Why you should consider adopting the MRA for your app
* How to choose a model that works for your app
* How to start the process of converting a monolith to microservices
Content caching is one of the most effective ways to dramatically improve the performance of a web site. In this webinar, we’ll deep-dive into NGINX’s caching abilities and investigate the architecture used, debugging techniques and advanced configuration. By the end of the webinar, you’ll be well equipped to configure NGINX to cache content exactly as you need.
View full webinar on demand at http://nginx.com/resources/webinars/content-caching-nginx/
Modern Web Apps should be focused, rich, and gorgeous, but they also need to be FAST. After all, being rich and beautiful isn't always enough!
With web apps, faster is always better; nobody will ever complain that your site is too fast!
Damien Pobel, expert technique PHP chez Smile, a animé une conférence sur le thème des front-end performances avec eZ Publish.
Les slides de sa présentation exposant quelques spécificités liées à eZ Publish sont disponibles ici.
Magento Performance Improvements with Client Side OptimizationsPINT Inc
Discussion of various optimizations that can be applied to Magento community and enterprise installations for speed improvements. Techniques include common WPO techniques such as gzip, cache control, CSS spriting, domain sharding, byte code caches, reverse proxies and more. Various steps are applied to an Amazon AWS instance with the results from Webpagetest.org shown afterwards.
The presentation of the Drupal frontend optimizations from Drupal Camp LA 2011. The slides go over optimizations you do in the backend to serve files in the frontend faster and optimizations in the front end to css and javascript to make that aspect run faster.
Did your website ever score 100/100 on Google PageSpeed Insight? What can you do to improve your WordPress site performance. What are three best ways to make your wordpress super fast. Do’s and Dont’s of Performance optimization and lastly invitation to collaborate on bringing together fastest WordPress stack with faster in-memory datastores.
Make Drupal Run Fast - increase page load speedPromet Source
What does it mean when someone says “My Site is slow now”? What is page speed? How do you measure it? How can you make it faster? We’ll try to answer these questions, provide you with a set of tools to use and explain how this relates to your server load.
We will cover:
- What is page load speed? – Tools used to measure performance of your pages and site – Six Key Improvements to make Drupal “run fast”
++ Performance Module settings and how they work
++ Caching – biggest gainer and how to implement Boost
++ Other quick hits: off loading search, tweaking settings & why running crons is important
++ Ask your host about APC and how to make sure its set up correctly
++ Dare we look at the database? Easy changes that will help a lot!
- Monitoring Best practices – what to set up to make sure you know what is going on with your server – What if you get slashdoted? Recommendation on how to quickly take cover from a rhino.
Discussion of WordPress performance optimizations pitfalls, remedies and tips. Also some discussion of search engine optimization and social media optimization tips.
Make Drupal Run Fast - increase page load speedAndy Kucharski
What does it mean when someone says “My Site is slow now”? What is page speed? How do you measure it? How can you make it faster? We’ll try to answer these questions, provide you with a set of tools to use and explain how this relates to your server load.
We will cover:
- What is page load speed? – Tools used to measure performance of your pages and site – Six Key Improvements to make Drupal “run fast”
++ Performance Module settings and how they work
++ Caching – biggest gainer and how to implement Boost
++ Other quick hits: off loading search, tweaking settings & why running crons is important
++ Ask your host about APC and how to make sure its set up correctly
++ Dare we look at the database? Easy changes that will help a lot!
- Monitoring Best practices – what to set up to make sure you know what is going on with your server – What if you get slashdoted? Recommendation on how to quickly take cover from a rhino.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
3. Intro to Waterfall Charts – High Level 3 Timeline (Seconds) Individual Resource Requests
4. WebPageTest Waterfall - Legend 4 Detailed Breakdown of resource retrieval Helps identify bottlenecks and problems Page Load milestones “Standardized” points in time to measure against
5. Front-End vs. Back-End Performance Back-End: Time to get the HTML Front-End: Time after the HTML WPO= Back-End + Front-End Performance 5 Back-end Front-End
6. 5 Critical Optimizations Front-End Optimization is complicated Many bottlenecks Many browsers Many techniques Moving Target We’ll discuss 5 key optimizations Explain the optimization Demonstrate its impact Share Tips & Tricks 6
7. Domain Sharding Problem: Too Few Hosts Browsers limit connections per host Less requests are done in Parallel Solution: “Shard” a domain into sub-domains E.g. 1.blaze.io, 2.blaze.io, 3.blaze.io… All domains will get to the same place Browser sees different domains, opens more connections 7
9. Sharded Domain, IE7 2 connections per domain, 8 total Total time ~2.5 seconds 9
10. Single Domain, IE8 Problem mitigated by newer browsers Open more connections per domain Not fully resolved 10
11. Single Domain, iPhone 4.3 Problem repeats on iPhone/iPad 4 Connections per domain, 30 connections max 11
12. Single Domain, Android 2.3 But on Android, Domain Sharding is moot 4 connections per host, 4 connections max 12
13. Domain Sharding – Tips & Tricks Too many domains = long DNS Older axiom states 2 is best Our measurements show 3-5 works best Depends on number of resources on the site Always serve resources from the same shard Inconsistency will harm caching Use different number of domains by browser Older browsers would benefit from more Android would benefit from no sharding 13
14. Consolidation Problem: Too many requests during page load Each request is a costly round-trip to the server Browsers limit number of concurrent requests Even more expensive on Mobile (asymmetric communication) Solution: Consolidate multiple files into one Single round-trip for multiple files Less round-trips, faster delivery Improved compression ratios 14
15. What can be consolidated? Textual Resources Stylesheets (CSS) JavaScript CSS Images Spriting Details: http://www.alistapart.com/articles/sprites Images and… anything else Data URIs 15 Google Sprite
16. Data URIs Textual Representation of data data:image/gif;base64,AAAA Supported in all latest browsers Includes IE8+, Chrome, Safari, Opera, Firefox Not supported in IE7 Supported in WebKit-based Mobile Browsers iPhone, Android, Blackberry 6, WinPho 7 16 prefix Encoding Data Content-type
18. Consolidation – Tips & Tricks Ensure browsers support the technology Data URIs not supported on IE6 & IE7 Beware large blocking files On some browsers, CSS & JS files may block Making them larger may slow down the page JavaScript Complications Inline and external scripts may be co-dependent Document.write() makes scripts hard to move Some scripts are more “sensitive” than others… 18
19. Inlining Problems Too many requests during page load Same problem Consolidation relates to Consolidated file take longer to fetch Increases page speed, but can slow down specific script Solution: Embed data into the parent Embed scripts & images into web page Embed images into CSS files 19
21. Inlining & Consolidation - Waterfall 21 Larger HTML Large CSS Dynamic Resources Generated in the browser Ads, Analytics, …
22. Inlining – Tips & Tricks Inlined resources are not cached Inlining best suited for landing pages Small resources can be inlined always Inlining overhead minor for small scripts Especially when compression is in use Don’t inline client-sensitive requests Analytics, beacons, ads… 22
23. Flushing the Buffer Early Problem It takes time to generate a full HTML page Inlining makes pages big and slow to download Solution Send back the document start earlier Document “Head” is often static and easy to generate Ensure CSS, JS and more are included in head Note: Dubbed “Predict Head” in Blaze After the feature that delivers it 23
24. Predict Head - Waterfall 24 Before:TTFB is 1.4 seconds,Doc Complete at 3.8 Seconds After: TTFB is 0.3 seconds,Doc Complete at 2.8 Seconds
25. Async JS Problem 3rd Party resources still load slowly Ads, Analytics, “Like” button, etc. Dynamically generated content slows page down Solution De-couple script execution from page load Most 3rd party tools are included as scripts Many 3rd party tools are secondary in page functionality 25
26. Async JS – Comparison 26 Before:Doc Complete at 2.8 Seconds After: Doc Complete at 1.5 Seconds
27. Async JS – Waterfall Similar Waterfall Earlier Doc Complete Ads loaded late Metrics loaded late Page functional faster 3rd party tools follow up quickly after 27
28. Async JS - Implementation Requires HTML & JavaScript Changes HTML: Modify script tags’ type to “text/myscript” Will make the browser skip them JavaScript: Add script to bottom of page to invoke the scripts Can use a 3rd party package, such as controljs(http://stevesouders.com/controljs/) 28
29. Async JS – Tips & Tricks Many pitfalls due to JavaScript flexibility Event registration, document.write(), etc. External scripts will be invoked serially Will slow down total time to execute scripts Can be improved with preloading scripts Requires cacheable scripts & browser-specific code Optionally only “Async” specific script Whitelist: Leave key scripts “in sync” with page Blacklist: Only “async” specific scripts 29
30. Summary 30 FEO Can do A Lot These 5 optimizations matter But many others exist Beware the pitfalls Don’t try it all at once.. Focus on select browsers Tackle key pages/sites Stay up-to-date Performance is a moving target 59 Requests (9 by Onload) 1.5 Seconds Measured using:4Mbps/500KbpsDownload/Upload 160 Requests 4.6 Seconds
31. Blaze Automated Front-End Optimization Blaze automates Front-End Optimization No Software, Hardware or Code Changes needed All the pitfalls and complexities taken care of Blaze applied the optimizations in these slides And can apply many other optimizations Submit your URL onblaze.io for your ownoptimization report 31