{"id":36757,"date":"2026-07-20T16:05:54","date_gmt":"2026-07-20T16:05:54","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/cppblog\/?p=36757"},"modified":"2026-07-20T16:04:04","modified_gmt":"2026-07-20T16:04:04","slug":"pure-virtual-cpp-2026-is-tomorrow-and-on-demand-sessions-are-now-available","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/cppblog\/pure-virtual-cpp-2026-is-tomorrow-and-on-demand-sessions-are-now-available\/","title":{"rendered":"Pure Virtual C++ 2026 Is Tomorrow and On-Demand Sessions Are Now Available"},"content":{"rendered":"

\"Pure<\/a><\/p>\n

Pure Virtual C++ 2026<\/strong>, our free, one-day virtual conference for the whole C++\ncommunity, goes live tomorrow, Tuesday, July 21, 2026 at 9:00 AM PT (16:00 UTC)<\/strong> on YouTube (Microsoft Reactor) and Twitch, hosted by Mads Kristensen<\/strong> and Sinem Akinci<\/strong>.\nRegister now \u2192<\/a><\/strong><\/p>\n

But you don’t have to wait until tomorrow to start watching. Our full slate of on-demand\nsessions is available right now<\/strong> on the Visual Studio YouTube channel. These talks aren’t\naired during the live broadcast. They’re yours to watch on your own schedule, today or any\nday after.<\/p>\n

Watch the on-demand playlist<\/a><\/div><\/a><\/strong><\/p>\n

And tomorrow, we go live<\/h2>\n

Before we dive into the on-demand sessions, here’s our conference schedule for tomorrow. The\nbroadcast runs about three hours starting at 9:00 AM PT (16:00 UTC)<\/strong> on Tuesday, July 21. During the five featured sessions<\/strong>, we’ll run live Q&A in the chat with each speaker<\/strong>, so\nbring your curiosity and your questions.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Time (PT)<\/th>\nSession<\/th>\nSpeaker<\/th>\n<\/tr>\n<\/thead>\n
9:00 AM<\/td>\nWelcome & opening<\/td>\nMads Kristensen, Sinem Akinci<\/td>\n<\/tr>\n
9:00 AM<\/td>\nC++ semantic awareness in the CLI: From Project Load to Code Change<\/td>\nSinem Akinci<\/td>\n<\/tr>\n
9:20 AM<\/td>\nMind The Gap: C++\/Rust Interop<\/td>\nVictor Ciura<\/td>\n<\/tr>\n
9:45 AM<\/td>\nFrom Completions to Agents: AI-Driven C++ in Visual Studio<\/td>\nAugustin Popa<\/td>\n<\/tr>\n
10:25 AM<\/td>\nCut Your Build Times Without Becoming a Build Expert<\/td>\nDavid Li<\/td>\n<\/tr>\n
10:40 AM<\/td>\nC++\/WinRT: Build faster and smaller with C++20 modules<\/td>\nRyan Shepherd<\/td>\n<\/tr>\n
11:00 AM<\/td>\nClosing remarks<\/td>\nMads Kristensen, Sinem Akinci<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Times are approximate and may shift slightly on the day.<\/em><\/p>\n

Want the backstory on the featured speakers? Catch up on our Meet the Speakers series<\/a>.<\/p>\n

Register and add it to your calendar \u2192 <\/a>. <\/strong>Can’t make it live? All sessions, featured and on-demand, will be available afterward on the YouTube playlist<\/a>.<\/p>\n

\n

On-demand guide: Build faster, run faster<\/h2>\n

Below is a guide to every on-demand session: what it covers, who’s presenting, and where to\ngo to learn more.<\/p>\n

Armin Gerritsen \u2014 Sample Profile-Guided Optimization in Practice: from prototype to production<\/em><\/h3>\n\n\n\n
\"Armin<\/td>\nArmin Gerritsen is a Principal Software Engineer on the Windows Silicon and OS Fundamentals team, focused on delivering the best performance on Windows devices. Over the years he has tuned Profile-Guided technology and expanded its use across the Windows OS, along with many other optimizations throughout the OS stack.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

What the session is about.<\/strong> When real profile data drives optimization, the compiler spends\nits effort exactly where your users spend their time. Traditional Profile-Guided Optimization (PGO) works, but instrumented\nbuilds, slow runs, and synthetic workloads kept many teams away. Sample Profile-Guided Optimization\n(SPGO)<\/strong>, now generally available in MSVC, flips the model: collect lightweight hardware\nsamples from your normal release build, feed them to the linker, and let the compiler\nre-optimize hot paths, code layout, and inlining based on what really happens at runtime.\nArmin walks the full loop on a small C++ sample, shows how the same approach scaled to\nWindows and to apps like Adobe Photoshop (delivering up to ~20% CPU uplift on selected workflows), and\nshares adoption best practices.<\/p>\n

Why watch.<\/strong> SPGO offers PGO-class speedups with a fraction of the friction. If you’ve wanted\ndata-driven performance without instrumented builds, this is the on-ramp.<\/p>\n

Learn more<\/strong><\/p>\n