Superluminal
@SuperluminalSft
A user-friendly CPU profiler for C/C++, Rust & .NET on Windows, Xbox One, Xbox Series X, PlayStation 4 & 5. Also @[email protected]
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We've just released one of our largest updates ever on the Stable channel! Support for profiling multiple processes, expanded annotation functionality, performance improvements in large traces, and a ton of smaller QoL improvements. This update's got it all! Go check it out! 👇
On Tuesday we're gonna have a LIVE chat on Profilers with @voxagonlabs - original author of RAD Telemetry profiler, and @rovarma who built Superluminal profiler! Join us!
👀
New blog post! In "Billions of triangles in minutes" we'll walk through hierarchical cluster level of detail generation of, well, billions of triangles in minutes. Retweets welcome! Link in reply because algorithm.
"Profiling without Source code – how I diagnosed Trackmania stuttering" larstofus.com/2025/07/27/pro…
We've just released a new Insider update with many fixes and QoL improvements, including the much-requested support for using the horizontal mouse wheel to navigate the timeline. Go check it out!
Responses much appreciated!
We're going to be refreshing Superluminal's website this year. We have a pretty good idea of what to change, but I'm curious — In your own words, if you're using Superluminal, why do you like using it?
We've just released our first update of the new year with a lot of perf and quality-of-life changes on the Insider channel. Go check it out, and happy new year!
I promised to look at shader graph undo next because we still see annoying stalls there. I have 3h of time today, let's see how far we get. blog.s-schoener.com/2024-11-20-uni…
I am trying to get to the old context menu in the explorer in Windows 11. When you have the new menu open, you have to click "Show more options." This reliably freezes for 20s. Why? Let's take a look in @superluminal.
My application was using 100% CPU despite sleeping every tick, even at 100 ms sleep! Tracy profiler showed nothing wrong, VerySleepy gave me a couple broken clues. I finally figured it out with @SuperluminalSft. A broken GPU driver was the cause...
A tech artist came to me and said "whenever we touch anything in a Unity shader graph, the editor stalls. It's painfully annoying." And yes, any meaningful change to the graph stalls the editor. Sometimes a bit, sometimes long. Let's take a look.
I want to talk about why Unity C# code is different. This is about editor performance, with nullable types as an example. There's some JSON parsing happening, which someone wants faster. (It has to be a JSON parser.)
Inspired by some recent work build times, I was looking at Unity's "MegaCity Metro" sample in Unity 6. I got curious about at its build times. In particular for incremental builds (fancy speak for "I pressed the build button repeatedly but only made minimal changes inbetween.")
In today's episode of "What am exactly I waiting for here?" I waited for Visual Studio to open 477 projects in a Unity Engine generated solution. It took > 15min. Did I attach a profiler? Why of course I did, because I ran out of patience and @superluminal_sft is my only friend.
When I mentioned the system wide profiling for Linux earlier today, *this* is exactly what I was talking about. Good stuff!
So I got a new machine. Windows 11. Brand new. It's stuck updating. It is taking ages. Why? Well, I don't have any definitive answers but my most basic instinct is to always attach a profiler -- I recommend the excellent @SuperluminalSft. 1/n
Getting unreasonably excited about getting Superluminal on Linux out there. I’m seriously starting to wonder if anyone in the history of Linux has ever done full system profiling similar to what is possible on Windows with ETW, vs just profiling individual programs.
So I got a new machine. Windows 11. Brand new. It's stuck updating. It is taking ages. Why? Well, I don't have any definitive answers but my most basic instinct is to always attach a profiler -- I recommend the excellent @SuperluminalSft. 1/n
I've made a D binding to their instrumentation API, is available here! github.com/KitsunebiGames…
Was given access to @SuperluminalSft recently, so far I'm really liking it! Works decently well with D too!
Was given access to @SuperluminalSft recently, so far I'm really liking it! Works decently well with D too!
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