Earlier this month, Matthias and I teamed up to push through some of our profiling tooling for GTK and GNOME. We took the occasional work I had done on Sysprof over the past few years and integrated that into the GTK-4.x tree. Sysprof uses a binary log file to store information about execution in a … Continue reading Sysprof Developments
Visualizers are almost ready to land. This week I got smooth scrolling, zoom, and selections working. The handy part about selections is that it allows you to update the callgraph to limit stack samples to those falling within a given time range.
The 3.24 cycle is just getting started, and I have a few plans for Sysprof to give us a more polished profiling experience in Builder. The details can be found on the mailing list. In particular, I’d love to land support for visualizers. I expect this to happen soon, since there is just a little … Continue reading Sysprof Plans for 3.24
After the GNOME 3.20 cycle completed I started revamping Sysprof. More here, here, and here. The development went so smoothly that I did a 3.20 release a couple of weeks later. A primary motivation of that work was rebuilding Sysprof into a set of libraries for building new tools. In particular, I wanted to integrate Sysprof with Builder as our … Continue reading Sysprof + Builder
So now that a new Sysprof release is shipped, lets pick on an unsuspecting library to see what it is like to improve performance in a real-world scenario. Today we’ll pick on GtkSourceView. They shouldn’t feel bad though, GtkSourceView is an absolutely wonderful library and like any piece of software, it can be improved. GtkSourceView … Continue reading How to Sysprof
Previously, previously, previously, and previously. The past couple of weeks went by so fast working on Sysprof that I think we can actually release it as a (late) 3.20 application. We don’t have many translations, but on the other hand, we didn’t have any before. There is so much we could do with Sysprof going … Continue reading Sysprof 3.20.0
My creative work is more aligned to GNOME cycles than years. Now that GNOME 46 is is out it’s a good time to look back at some of the larger things I did during those cycles. Fedora and Frame Pointers 2023 kicked off with quite a kerfuffle around frame pointers. Many people appear to have … Continue reading GNOME 45/46 Retrospective
Recently I was looking at a VTE performance issue so I added a bunch of Sysprof timing marks to be picked up by the profiler. I combined that with GTK frame timing information and GNOME Shell timing information because Sysprof will just do that for you. I noticed a curious thing in that almost every … Continue reading Improving poll() timeout precision
I’ve authored an article recently for Fedora Magazine on Performance Profiling in Fedora. It covers both the basics on how to get started as well as the nitty-gritty details of how profilers work. I’d love for others to be more informed on that so I’m not the only person maintaining Sysprof. Hopefully I was able … Continue reading Performance Profiling for Fedora Magazine
The venerable GtkSourceView project provides a GtkWidget for various code languages. It has a number of features including the most basic, showing a line number next to your line of text. It turns out that takes a lot more effort than you might think, particularly when you want to do it at 240hz with kinetic … Continue reading Faster Numbers