76c2d0007d
This merges a mostly completed rewrite of Sysprof using all the new GTK features we can muster. In particular, we now have SysprofDocument which can be used to read documents instead of SysprofCaptureReader for a more document-oriented experience. It's mmap-based and has significantly more indexing capabilities for new features. The recording process still needs a bit more work, along with opening documents and custom debug-dirs. Some applications are expected to break, such as gnome-builder which will have to stop using the now-extinct libsysprof-ui library. Instead applications should open the capture files with Sysprof directly.
Sysprof is a sampling profiler that uses a kernel module to generate stacktraces which are then interpreted by the userspace program "sysprof".
See the Sysprof homepage for more information.
Merge requests and bug reports should be sent to sysprof's repository on GNOME's GitLab instance. For general discussion and questions, you can create a new topic in GNOME's Discourse.
The former mailing list is archived in https://mail.gnome.org/archives/sysprof-list/.
Debugging symbols
The programs and libraries you want to profile should be compiled
with -fno-omit-frame-pointer and have debugging symbols available,
or you won't get much usable information.
Building Sysprof
You need some packages installed. The package names may vary depending on your distribution, the following command works on Fedora 36:
sudo dnf install gcc gcc-c++ ninja-build gtk4-devel libadwaita-devel
Then do the following:
meson --prefix=/usr build
cd build
ninja
sudo ninja install
WARNING: ninja install will mostly install under the configured install
prefix but installs systemd service configuration directly in the system
default location /usr/lib/systemd so it won't work without root privileges,
even if the install prefix is a user-owned directory.