--- title: Application Performance Optimisation in Practice - Steve... description: A conference talk by Steve Gordon covering a structured approach to application performance optimization in .NET. The session introduces a 'performance... canonical: https://daily.dev/posts/application-performance-optimisation-in-practice---steve-gordon---ndc-copenhagen-2026-5pjoiisqm twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Application Performance Optimisation in Practice - Steve Gordon - NDC Copenhagen 2026 | daily.dev og:description: A conference talk by Steve Gordon covering a structured approach to application performance optimization in .NET. The session introduces a 'performance... og:url: https://daily.dev/posts/application-performance-optimisation-in-practice---steve-gordon---ndc-copenhagen-2026-5pjoiisqm og:image: https://api.daily.dev/og/posts/5pJoIISqm.png og:image:alt: Application Performance Optimisation in Practice - Steve Gordon - NDC Copenhagen 2026 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Application Performance Optimisation in Practice - Steve Gordon - NDC Copenhagen 2026 **[NDC Conferences](https://daily.dev/sources/ndc)** · 62 min read · 0 upvotes · 0 comments ## Summary A conference talk by Steve Gordon covering a structured approach to application performance optimization in .NET. The session introduces a 'performance optimization loop' — a repeatable process using production monitoring data, CPU and memory profiling, benchmarking, and incremental code changes. A real-world demo walks through optimizing an OpenTelemetry SQL instrumentation library, showing concrete techniques: pre-sizing StringBuilders to avoid internal expansion and extra allocations, reusing static StringBuilder instances to eliminate per-call heap allocations, replacing a non-generic Hashtable cache with ConcurrentDictionary to avoid boxing/unboxing, and eliminating unnecessary substring allocations. Results show cumulative allocation reductions of over 57% and measurable CPU time improvements. The talk also covers when to optimize (data-driven triggers vs. premature optimization), the performance impact triangle (user experience, cost, reliability), and how to make performance work sustainable through documentation and code comments. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The Blueprint for High-Performance, Resilient .NET Applications](https://daily.dev/posts/the-blueprint-for-high-performance-resilient-net-applications-gr1arhboi) · C\# Corner · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#.net](https://daily.dev/tags/.net) [View this post on daily.dev](https://daily.dev/posts/application-performance-optimisation-in-practice---steve-gordon---ndc-copenhagen-2026-5pjoiisqm) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Application Performance Optimisation in Practice - Steve Gordon - NDC Copenhagen 2026","url":"https://daily.dev/posts/application-performance-optimisation-in-practice---steve-gordon---ndc-copenhagen-2026-5pjoiisqm","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/application-performance-optimisation-in-practice---steve-gordon---ndc-copenhagen-2026-5pjoiisqm"},"datePublished":"2026-08-05T09:32:22.827Z","dateModified":"2026-08-05T09:32:44.290Z","description":"A conference talk by Steve Gordon covering a structured approach to application performance optimization in .NET. 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