sysprof (3.20.0-1) unstable; urgency=low

  Overview of changes in Sysprof 3.20.0
  =====================================

  Sysprof 3.20.0 is a major rewrite of the sysprof internals.

   * The GTK+ user interface has been ported to GTK+ 3, and includes
     the use of modern GTK+ patterns, including GtkHeaderBar.

   * A new library, libsysprof-2 has been created, which contains the
     internals for implementing a Linux perf-based profiler.

   * A new library, libsysprof-ui-2 has been created, which can be used by
     IDEs to provide profiling capabilities. GNOME Builder is expected to
     take advantage of this.

   * Sysprof uses a new binary capture format, to allow for collecting
     more types of data than simply Perf callchain information.

   * Data collection sources have been abstracted, allowing for new types
     of data collection to occur. Additionally, it is now possible to port
     Sysprof to other operating systems if contributors are found to
     implement those features. As before, Sysprof is currently supported
     on Linux, where the perf_event_open syscall is available.

   * The sysprof capture format supports information from JITd languages.
     Patches to Gjs (GNOME's wrapper around mozjs24) exist that can export
     JIT information from the JavaScript engine.

   * Sysprof now supports launching an application as part of the
     profiling process.

   * Sysprof can attach to one-or-more existing processes to collect
     profiling information. This still uses the Linux perf infrastructure,
     which means sampling is still performed.

   * The user interface provides a stopwatch for the amount of time that
     has elapsed since recording started. If you find that the sysprof UI
     shows up in your capture, we suggest using sysprof-cli to collect
     samples.

   * The Sysprof UI provides tags next to common GNOME libraries used in
     the GNOME stack to allow users to quickly identify libraries that
     may not have fully-qualified symbol names.

   * The binutils based demanger has been removed in favor of
     abi::__cxx_demangle() function. This fixes modern C++ demangling
     and vastly simplifies the Sysprof codebase. However, it does require
     a C++ compiler and linker to build Sysprof. Applications using
     libsysprof-2 and libsysprof-ui-2 do not require a C++ compiler.

   * Sysprof now provides a D-Bus service, sysprofd, which can perform
     elevated perf_event_open syscalls on behalf of the user interface
     after appropriate authorization. Polkit is used to perform the
     authorization. This service requires sd-bus from systemd 222 and
     newer. If you choose not to use this service, or do not have
     systemd on your system, you will have to perform system-wide
     captures as root, either via the UI, or via sysprof-cli.

   * sysprof-cli now supports executing a command with the -c option.

   * A new mimetype for *.syscap is installed to allow opening capture
     files from Nautilus or other file-managers.

   * The sysprof artwork has been updated.

   * Sysprof can now be translated using GNOME's i18n and l10n
     infrastructure.

   * Sysprof now comes with a modest help manual which can be viewed with
     the Yelp documentation browser.

   * New code in sysprof has been licensed under the GPLv3 or newer.

  Translations

   * Brazilian Portuguese by Rafael Fontenelle
   * German by Mario Blättermann
   * Polish by Piotr Drąg
   * Serbian by Мирослав Николић

  It is worth noting that Sysprof is still a sampling based profiler.
  However, it should now be possible to extend sysprof to support tracing
  via callgrind. If you are interested in helping on this effort, please
  let us know and we can help you get started.

  Happy Perf Hunting,

  -- Christian Hergert <christian@hergert.me>

 -- Ritesh Raj Sarraf <rrs@debian.org>  Wed, 17 Aug 2016 21:17:36 +0530

sysprof (1.1.6-2) unstable; urgency=low

  The new 1.1 release does not have a separate kernel module. sysprof now uses
  the in-kernel ftrace and performance counters framework.

 -- Ritesh Raj Sarraf <rrs@debian.org>  Mon, 13 Jun 2011 23:15:27 +0530
