Bot releases are hidden (Show)
This fixes an issue with an outdated version of elfutils in the appimage.
Published by lievenhey 5 months ago
Qt and KDE debug symbols
Published by milianw 6 months ago
The hotspot v1.5.0 release is finally here 🎉
It comes packed with a wealth of code cleanups, bug fixes and new functionality.
Most notably, the disassembly view has been further improved with better searching,
highlighting and faster performance.
Furthermore, we reworked the authentication mechanism to allow perf record
get
run directly with elevated priveleges via pkexec
, obsoleting the error prone
old mechanism (see also https://nvd.nist.gov/vuln/detail/CVE-2023-28144).
We now also fully support Qt6 and KF6, while keeping compatibility with Qt5
and KF5. The AppImage below is still build with Qt5 but it might be the last
time that we do this. The next version might become Qt6 only.
Many thanks to the various contributors that help build this software, both
by writing code as well as reporting bugs.
Happy profiling everyone 🚀
Full Changelog: https://github.com/KDAB/hotspot/compare/v1.4.1...v1.5.0
NOTE: GitHub does not allow me to upload the AppImage directly anymore, you need to gunzip
the compressed AppImage.gz
first 🤷
Published by milianw almost 2 years ago
This release fixes an issue with the AppImage when trying to export data to the .perfparser
format. Additionally, packager builds from the tarballs should now work properly.
Published by milianw almost 2 years ago
This feature release contains close to 400 commits since the last stable v1.3.0 release. It comes with its usual assorted list of bug fixes and performance improvements. Additionally, there are some new noteworthy features:
cycles
are measuredPublished by milianw almost 4 years ago
NOTE: The continuous build tag is obsolete. We now rely on GitHub actions to create the AppImage.
To download, go to the list of build jobs for the main branch. When you click on a job, you'll see a page with an "Artifacts" section that contains an "appimage" binary you can then download.
Published by milianw about 4 years ago
Hotspot became much faster at interpreting data for large complex applications: Analyzing perf.data
files for firefox
e.g. with its monster libxul
is now magnitudes faster than it was previously.
On top of that, we now properly support analysis of zstd compressed data files, i.e. those obtained via perf record -z
. This feature easily reduces the size of the perf.data
files by one to two orders of magnitude.
The timeline has been improved and now shows tick marks on the time axes, as well as smart time unit prefixes when zoomed in.
Additionally, hotspot can now demangle rustc
symbols. And finally the perfparser submodule was updated with tons of fixes and improvements, such as better support for fork-based parallelism.
Fixed issues in this release:
Published by milianw over 5 years ago
Hotspot can now be used to analyze off-CPU time, i.e. time where your application is switched out and not running. This can be used to find heavy lock contention, synchronous I/O wait time and more. The record page offers a simple check box to enable this feature. If you run perf record
directly from the command line and only use hotspot to visualize the results, make sure to pass the following flags:
perf record --call-graph dwarf -e cycles -e sched:sched_switch --switch-events --sample-cpu ...
The record page in hotspot now also has the capability to elevate your user permissions temporarily using kdesu
, to allow recording of e.g. off-CPU data even as non-root.
The v1.2.0 release also adds quite a few bug fixes, performance improvements and also some other new features. Notable is the addition of a per-CPU core event timeline, which depends on the --sample-cpu
flag being passed to perf record
. Furthermore, you can now filter events by symbols: Right click on any of the data tables or views and then select the 'filter in/out by symbol` action.
Published by milianw about 7 years ago
Hey all,
I have the pleasure to finally announce the availability of hotspot v1.1.0. Hotspot is a GUI for Linux perf. Right now, it's a drop-in replacement for (parts of) perf report
. It aims to be easier to use, but comes with powerful features to analyze the profiler data. This release adds
The full release announcement contains pretty screenshots:
https://www.kdab.com/hotspot-v1-1-0-adds-timeline-recording-features/
Thanks, hope you like it. If so, please consider contributing:
Patches: https://github.com/KDAB/hotspot/pulls
Bug Reports: https://github.com/KDAB/hotspot/issues
NOTE: The GitHub-provided source tarballs do not contain the required perfparser
submodule. Either download that separately, or directly use one of the hotspot-v1.1.0.{tar.gz,zip}
source packages, which should be self-contained.
md5sum:
52eed6f8a78451ef6c44e541624de947 hotspot-v1.1.0.tar.gz
273cb3d6a5508254caed6ee5296689e6 hotspot-v1.1.0-x86_64.AppImage
09b3b90a18936bed58558955113d0135 hotspot-v1.1.0.zip
sha1sum:
3cef6822da0f29fb5f37b272f3d4154217628214 hotspot-v1.1.0.tar.gz
143131ff5a0a071740d7401c9ca24a9f3497b7d9 hotspot-v1.1.0-x86_64.AppImage
2d22a815c90102437cf7f3449c2469afa5b8df4f hotspot-v1.1.0.zip
Cheers
Published by milianw over 7 years ago
Hey all,
I have the pleasure to finally announce the availability of hotspot v1.0.0. Hotspot is a GUI for Linux perf. Right now, it's a drop-in replacement for (parts of) perf report
. It aims to be easier to use, but comes with powerful features to analyze the profiler data:
The full release announcement contains pretty screenshots:
https://www.kdab.com/hotspot-gui-linux-perf-profiler/
Thanks, hope you like it. If so, please consider contributing:
Patches: https://github.com/KDAB/hotspot/pulls
Bug Reports: https://github.com/KDAB/hotspot/issues
NOTE: The GitHub-provided source tarballs do not contain the required perfparser
submodule. Either download that separately, or directly use one of the hotspot-v1.0.0.{tar.gz,zip}
source packages, which should be self-contained.
Cheers