Azure functions performance. This eliminates the need for manual scaling configurations.

Azure functions performance The same function cold starts less than a second (close to 250 msecs) with AWS. Based on these latencies it can decide whether to add or remove workers. It covers how the system collects metrics, makes scaling decisions, and allows you to configure performance-related settings to optimize your Durable Functions applications. Nov 9, 2024 · In today’s fast-paced digital landscape, building scalable applications is essential to accommodate growing user bases, handle increased workloads, and ensure seamless performance. Azure Functions Performance Exploration. Improve your app performance at scale. Tried dev ops function deployment but had a lot of issues with apps shutting down and needing restarted, probably due to bad code. Aug 18, 2024 · Azure Functions offer a highly scalable and cost-effective way to run event-driven code in the cloud. May 13, 2025 · Azure Functions is an event-driven, compute-on-demand experience that extends the existing Azure App Service application platform with capabilities to implement code triggered by events occurring in Azure, in a partner service, and in on-premises systems. NET Core empowers Azure Functions. Functions lets you build solutions by connecting to data sources or messaging solutions, which makes it easier to process and react to May 29, 2025 · Introduction Ensuring reliable, high-performance serverless applications is central to our work on Azure Functions. , using Durable Functions for long-running processes or leveraging the Premium Plan for high-performance Aug 29, 2024 · This article explores the significance of static in Azure Functions, the impact it has on performance and scalability, and why it’s used differently in the In-Proc and Out-Proc models. On this page Learn how to best improve the performance and reliability of running your functions in Azure. May 19, 2025 · Azure Functions integrates with Application Insights to better enable you to monitor your function apps. The following are best practices in how you build and architect your serverless solutions using Azure Functions. Azure Functions, a serverless computing service provided by Microsoft Azure, offers a robust platform for developing scalable applications without the overhead of managing infrastructure. May 30, 2025 · Introduction Ensuring reliable, high-performance serverless applications is central to our work on Azure Functions. We focus on optimizing consumption plans and utilizing advanced tools for seamless scaling. Whether you’re an Sep 24, 2025 · Azure Functions feature automatic scaling to manage varying request volumes and integrate with Azure Monitor and Azure Security Center for performance tracking and security management. we are just invoking a rest API to get some metrics with different options available Just integrate with APIM as back-end service Using Azure Function Using Logic Apps Below are the metrics After the trigger starts function execution, the function needs to return/respond within the time-out duration. Also it serves very well as a bus consumer if using azure bus, event grid or storage queue because you don't have to set up the consuming mechanism, it's already implemented as a trigger and the authentication is automated via managed identity. Each execution has its exclusive pool of memory and CPU cycles. In this article, we'll explore two key Find out which languages are supported for developing function apps in Azure, the support level of the various language versions, and end-of-support dates. This article provides guidance for optimizing scalability and performance when you use Azure Event Hubs and Azure Functions together in your applications. Jul 29, 2024 · Organizing Your Functions Grouping Functions Grouping functions effectively in Azure can significantly impact the performance, scaling, configuration, deployment, and security of your overall solution. Apr 5, 2022 · Regarding the Performance and reliability improving of Azure Functions, please refer here. Aug 19, 2022 · As with all Azure Functions running in the Consumption and Elastic Premium plans, Durable Functions supports auto-scale via the Azure Functions scale controller. By leveraging these tools and applying optimization techniques, organizations can maintain cost-effective, scalable, and high-performance Azure Functions deployments. The main factors to consider when designing, writing, and configuring your functions apps are horizontal scaling and throughput performance configurations. All functions are Feb 14, 2024 · Azure Functions provide a serverless compute service that enables you to run event-triggered code without having to explicitly provision or manage infrastructure. May 10, 2025 · Handling lots of SharePoint Items in Azure Functions with Ease. Apr 9, 2024 · By leveraging the capabilities of Azure Functions and adhering to best practices, developers can build scalable, reliable, and high-performance applications in the cloud. Also it not worse to mention that programming model allows you to write code in a same way you write asynchronous code using async and await keywords. Monitoring the resource usage can help identify if this is the case. Azure Load Testing is a fully managed load-testing service that enables you to generate high-scale load. Read the latest news and insights about Azure Functions, brought to you by the experts at Microsoft Azure Blog. Learn how to track metrics and optimize your cloud solutions effectively. The second part provides guidance on using Service Bus in a way that can offer the best performance in a given scenario. You focus on the code that matters most to you, in the most productive language for you, and Azure Functions handles the rest. Mar 20, 2023 · Learn how to best improve the performance and reliability of running your functions in Azure. Let me know if you need to connect and discuss this further please - would be happy to walk you through an Jul 28, 2022 · For a new integration project in Azure, we were, like always, deciding between the use of Azure Functions or Logic Apps for our integrations. - Azure/azure-functions-performance-test Azure functions are generally good replacement for background jobs, scheduled tasks, etc. Sep 15, 2020 · With the new Azure Static Web Apps, you can include Azure Functions as a part of your deployment which gives you the best of both worlds when you deploy static sites. Mar 4, 2025 · When building event-driven architectures on Azure, Azure Functions often play a crucial role in handling high volumes of events. For a more general set of Azure Functions best practices, see Azure Functions best practices. Jan 11, 2024 · How can ReadyToRun (R2R) improve the performance of Azure Functions? Are there any visible/quantifiable gains by enabling it? What is ReadyToRun (R2R)? ReadyToRun (R2R) is a compilation option that improves the startup performance of . With new plans like Flex Consumption Mar 21, 2025 · Azure Durable Functions Performance Optimization Techniques This blog is co-authored by Dr. Oct 9, 2023 · TL;DR In this post I show (mainly) how . NET Dapr application in terms of asynchronous messaging throughput some learnings when deploying the 3 variants on ACA (=Azure Container Apps): Azure Functions in a container on ACA, applying KEDA scaling Azure Functions on ACA, leaving . 1. The problem I'm facing is that every time the sub-orchestrator replays, the… Apr 8, 2020 · Azure Function We have observed one major difference with respect to performance between these two. This article provides a deep dive into building resilient serverless applications by implementing a robust, centralized retry mechanism in Python. Nov 2, 2025 · It would be beneficial to share some of our extensive knowledge in Functions-as-a-Service and Serverless over the years. Nov 24, 2024 · The choice between Linux, Windows, and Containers for hosting Azure Functions depends on your application’s performance requirements, security needs, and development preferences. However, these functions Mar 8, 2025 · By implementing these techniques and leveraging Azure services, you can significantly improve the performance of your high-volume event-driven application built with Azure Functions. We have already confirmed that reverting these packages solves the issue. NET Azure Functions (in the 2 currently available hosting options on Azure Container Apps) can be compared to a ASP. Include code level performance, metrics, errors, logs and more. Magesh Kasthuri, Distinguished Member of Technical Staff (Wipro) and Sanjeev Radhakishin Assudani, Azure COE Principal Architect (Wipro). It also describes various tools to help diagnose problems during development, testing, and production use. Become familiar with concurrency behavior of event-driven triggers in Azure Functions. Feb 14, 2023 · When developing for Azure Functions using Python, you need to understand how your functions perform and how that performance affects the way your function app gets scaled. In this project there are 2 different integration types: Synchronous where we need to expose a restful API that retrieves the data from a WCF Service. Sometimes takes me less then one second to consume a message, others take almost 2 minutes and they start getting degradated… Oct 25, 2024 · Choosing the right concurrency strategy enables a balance between performance, cost, and reliability, allowing you to optimize your Azure Durable Functions for complex, high-volume tasks effectively. The Azure Functions Flex Consumption plan gives you flexibility and custom features that include private networking, fast and large scale-out features, and instance memory size selection based on a serverless model. Jun 25, 2025 · Scaling and Performance Relevant source files This document explains the scaling architecture and performance considerations for the Azure Functions Durable Extension. Aug 13, 2024 · GitHub, with the help of Microsoft, built a function app that runs in Azure Functions Flex Consumption—delivering fast and large scale-out features. Ideal for enterprise-scale data automation and integrations. Feb 15, 2021 · Disk write performance on Azure Functions Series This post is part of my Advanced Azure Functions series (thanks for the idea, Loïc!) How to run a distributed scan of Table Storage - 10 minute limit and Table Storage Disk write performance on Azure Functions - this post Run Azure Functions on Virtual Machine Scale Sets - save $$$ on Functions Introduction Latest update: 2021-04-26, added App Jan 13, 2025 · Azure Functions have specific limits for each pricing tier, and exceeding these limits can cause performance issues. 2 (first 1m free). Sep 20, 2025 · Batch processing with Azure Functions and Service Bus can dramatically improve your application’s performance and reduce costs. The Scale Controller monitors how long messages and tasks have to wait before they are processed. Application Insights, a feature of Azure Monitor, is an extensible Application Performance Management (APM) service that collects data generated by your function app, including information your app writes to logs. Jul 13, 2025 · Explore key performance indicators for Azure Functions to measure success remotely. g. However, they come with a challenge that can impact performance - cold starts. In this article, we'll explore two key Nov 17, 2024 · Azure Functions can scale out horizontally based on the workload, ensuring optimal performance even with large data. Asynchronous where we have Event Hub on the one side and an on-premises FileShare on the other. Aug 7, 2025 · You can create a URL-based load test directly from your Azure Function App in the Azure portal. Learn how Azure Functions supports multiple versions of the runtime, and understand the differences between them and how to choose the one that's right for you. Find the fastest platform with lowest cold start times. For Aug 20, 2024 · Azure Functions provide a very flexible, serverless option for running custom code written in a number of languages. Sep 17, 2020 · Use KQL and Application Insights to learn about performance bottlenecks and issues with your Azure App Services and Azure Functions. The first part of this article describes different mechanisms to increase performance. AWS Lambda always reserves a separate instance for a single execution. What I see is, Azure stores all the function code in Azure Storage account and load it over the network creating this latency. Mar 7, 2020 · I’ve been using Azure Durable Function for a long time for developing a high load ETL process. Run load tests using JMeter, Locust with Azure Load Testing and end-to-end functional tests with Playwright Workspaces. Concurrency and Isolation Both services can run multiple (potentially thousands) executions of the same function simultaneously, each handling one incoming event. This article describes how to use Azure Service Bus to optimize performance when exchanging brokered messages. Jan 13, 2025 · Azure Functions have specific limits for each pricing tier, and exceeding these limits can cause performance issues. Oct 8, 2022 · Look no further than Azure Static Web Apps for that. Organizing functions into logical groups based on their characteristics and requirements ensures efficient management and resource utilization. Oct 28, 2025 · Explore an interactive tutorial Complete one of the following interactive training modules to learn more about Functions: Choose the best Azure serverless technology for your business scenario Well-Architected Framework - Performance efficiency Execute an Azure Function with triggers To learn even more, see the full listing of interactive Sep 19, 2017 · The consumption plan for Azure Functions is capable of scaling your app to run on hundreds of VMs, enabling high performance scenarios without having to reserve and pay for huge amounts of compute capacity up front. Choosing the Right Trigger Type The Oct 20, 2019 · 6. Application Insights is a monitoring and analytics service May 18, 2025 · Compare AWS Lambda, GCP Cloud Functions, and Azure Functions for Rust serverless performance in 2025. Aug 2, 2022 · If someone of you remember, in the past I wrote about doing performance testing of Azure Functions using tools like Apache JMeter. We also discussed different function app hosting options and how each has different performance and cost considerations to keep in mind. NET Core," written by Ziggy Rafiq, readers learn about how Isolated . The following table shows the default and maximum values (in minutes) for specific plans: Jul 1, 2025 · Microsoft Azure Functions Java SPI Types (azure-function-java-spi) is a package that contains all SPI interfaces for third parties to interact with Microsoft Azure functions runtime. Learn how to supercharge your Azure Functions with Graph API batching, throttling retry logic, in-memory caching, and optimized pagination to efficiently process massive SharePoint Online lists. Mar 10, 2023 · Hello! I have created an Azure Durable Functions project using TypeScript, which includes an orchestrator that calls a sub-orchestrator to perform some data processing tasks. Mar 5, 2022 · Learn how to best improve the performance and reliability of running your functions in Azure. Inherited a azure function App for APIs and extending them has been a real pain, deployment process was via vs code azure extension, a change to one api required a full deployment. Aug 29, 2024 · Start monitoring you Azure Functions today In this post, we looked at a few key strategies and best practices you can implement to optimize and secure Azure Functions. May 21, 2025 · Calling Microsoft Graph API from Python Azure Functions? Don't let network glitches or API throttling derail your critical operations. 2 days ago · Azure Functions provide a serverless compute platform for building event-driven applications, while Application Insights (part of Azure Monitor) offers powerful logging, monitoring, and diagnostics tools. Caters for the static WASM content, custom Domains as well as hosted Azure Functions as part of the Static web app or separately that give you a back-end architecture for data access. To avoid timeouts, it's important to write robust functions. To create a load test for a function app: In the Azure portal, go to your function app. Mar 11, 2024 · I'm using azure functions and service bus and i'm facing some problems with messages consumption on queues with the passing time. Mar 25, 2025 · With Functions, you write your function code in your preferred language using your favorite development tools, and then deploy your code to the Azure cloud. This section discusses best practices for grouping This article provides guidance to improve the performance and reliability of your serverless function apps. For more information, see Improve Azure Functions performance and reliability. Consistent monitoring offers insight into system health, while regular maintenance prevents issues from escalating. This lesson covers various techniques and best practices for optimizing the performance of your Azure Functions. In this blog post, we'll explore what cold starts are, why they occur, and how you can mitigate them using different strategies, including Azure's payment plans, external services, and health checks. The key is finding the right balance between batch size Aug 15, 2023 · Our system has experienced a huge (8x) performance degradation after what seemed like a minor upgrade. In the article "Boosting Azure Function Performance with Isolated . Performance is a very important aspect in any application. Jan 6, 2023 · Photo from Microsoft Azure The final tip for optimizing your Azure functions is to use application insights for monitoring and debugging. May 7, 2025 · Azure Functions offers built-in integration with Azure Application Insights to monitor functions executions. The Azure team continually works Sep 21, 2024 · By choosing the right Azure Functions plan and designing around these limitations (e. In this article, we explain how workers are scaled based on load, and how one can tune the various parameters. And I have to mention that it’s very useful library that allows you write stateful functions in a serverless compute environment. You can either create by entering your HTTP requests directly in portal or by uploading a JMeter or Locust test script. When developing for Azure Functions using Python, you need to understand how your functions perform and how that performance affects the way your function app gets scaled. It is an alternative to the Just-In-Time (JIT) compilation that is enabled by default. Crazy performance, but access to Azure Functions when you absolutely need to write a little bit of code. Learn how to fix and optimize performance issues in Azure Functions with Site24x7. I moved to azure container apps and . Jan 8, 2024 · Are your Azure Functions not performing as efficiently as you'd like? Function design plays a crucial role in the performance of your Azure Function App. If this issue persists still, then please raise an incident with Microsoft Support to get the root cause and resolution. Apr 25, 2024 · To measure Azure Functions’ performance, we prioritize the cold start of synchronous HTTP triggers in the consumption model. Jul 17, 2025 · In our journey building and operating Azure PaaS solutions under real-world pressure, we’ve encountered concurrency bugs, messaging quirks, and performance Jan 20, 2020 · Azure Functions hosts function executions from a single function app inside the same process, making it quite difficult to measure memory consumption of a single function, as confirmed by the Azure Functions team. NET Core applications. May 6, 2024 · This article details some best practices when using Durable Functions. Therefore, the performance is entirely predictable and stable. Azure Functions allocates AWS Lambda vs. Azure Functions comparison based on pricing, performance, scalability, models, platforms, and features to help you choose the best. Boost efficiency and ensure smooth operation with our step-by-step guide! May 21, 2024 · Optimize Azure Functions for Performance and Costs using Azure Load TestingAzure Functions is a serverless computing platform that allows you to run code without having to manage infrastructure, servers, or operating systems. See the details about the versions below. Feb 15, 2025 · To support cost estimation and budgeting, we also delve into Azure’s built-in tools like Azure Cost Management + Billing, Pricing Calculator, and budget alerts. Sep 6, 2017 · Retrace provides robust Azure Functions performance monitoring. Azure Functions (consumption plan, cold start): 1m requests cost $0. Together, they form a critical combo for debugging and optimizing serverless workloads. And, with Datadog tools like Cloud Security, you can quickly detect and mitigate Azure Jan 16, 2025 · By following these optimization techniques, you can significantly enhance the performance and scalability of your Azure Functions with Durable Entities, ensuring that your workflows handle high loads efficiently and reliably. Jun 10, 2024 · This article discusses the work done to improve Azure Functions cold starts and what you can do to optimize your functions. To optimize performance and scalability, it's important to understand the unique scaling characteristics of Durable Functions. This piece explores improved performance and greater autonomy, enabling efficient cloud-native solutions. As new plans and features (like the Flex Consumption plan) continue to expand Functions’ capabilities, we need robust throughput testing. Contribute to pettijohn/func-cs development by creating an account on GitHub. Azure Functions (premium plan, no cold start): billed for the total number of cores and memory provisioned. This article provides an overview of the monitoring capabilities provided by Azure for monitoring Azure Functions. Lesson 43: Optimizing Function Performance As part of the broader topic of Performance and Scalability in Azure Functions, optimizing function performance is essential to ensure that applications run efficiently and cost-effectively. Jan 15, 2023 · Monitoring and maintaining Azure Functions are critical to ensuring their performance and reliability. We will introduce techniques and insights that may improve Azure functions performance, showing you how we reduced CosmosDB performance from seconds to microseconds. Here we will explore strategies to optimize Azure Function Triggers for better performance and reliability. R2R compiles the application and all of its Jan 8, 2024 · Are your Azure Functions not performing as efficiently as you'd like? Function design plays a crucial role in the performance of your Azure Function App. Now, the Azure platform has a nice new tool (currently listed as in preview) called Azure Load Testing. This course will teach you how to ensure your Azure Function usage is as optimized and cost-efficient as possible. However, a common frustration arises when **logs fail to flow from an Azure Function to Application Apr 30, 2025 · Durable Functions now offers multiple managed and BYO storage back-ends (Azure Storage, Netherite, MSSQL, and the new durable-task-scheduler), giving architects new options for performance. As applications grow, so do the costs and Aug 7, 2025 · In this article, you learn how to optimize Azure Functions for performance and costs using Azure Load Testing. May 27, 2022 · Scaling Azure Functions efficiently is crucial for maintaining performance and cost-effectiveness in a serverless environment. That means looking at what the platform and the Azure Functions host must do to execute the first HTTP trigger function on a new virtual machine (VM) instance. However, when dealing with high-volume scenarios, optimizing triggers becomes paramount. This eliminates the need for manual scaling configurations. net core web api and it’s taken a bit of May 3, 2023 · 0 According to this MS Document, In order to eliminate Cold start and improve your Azure functions performance you can create your Function app in Azure Functions Premium plan as Premium plan has always ready instances and Pre-warmed instances which reduces latency and improves performance of your Functions. Functions provides native support for developing in C#, Java, JavaScript, PowerShell, or Python, plus the ability to use custom handlers for other languages, such as Rust and Go. At a first look Oct 1, 2020 · Before we can go into more detail on how to improve your function performance and the code running inside the functions, we need to make sure we understand the invocation context of a function. On the left pane, select Load Testing (Preview) under the Performance section. The need is more important when designing highly performant apps. Platform providing features to test Azure Functions performance according to implemented tests scenarios. Is there a performance benefit of choosing the azure function vs the http request action? There seems to be two ways to add an azure function to your logic app. We run through simple use case to compare the performance. hptst qzpblfp lwao bhrxa tcdgd rejntk nveir cigywv jfqfh upcc pmtca kxltf qorjaq qhv tgwcqo