gperftools/packages/deb/changelog

google-perftools (0.90-1) unstable; urgency=low

  * google-perftools: version 0.90 release
  * (As the version-number jump hints, this is a major new release:
    almost every piece of functionality was rewritten.  I can't do
    justice to all the changes, but will concentrate on highlights.)
  *** USER-VISIBLE CHANGES:
  * Ability to "release" unused memory added to tcmalloc
  * Exposed more tweaking knobs via environment variables (see docs)
  * pprof tries harder to map addresses to functions
  * tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10
  *** INTERNAL CHANGES:
  * Much better 64-bit support
  * Better multiple-processor support (e.g. multicore contention tweaks)
  * Support for recent kernel ABI changes (e.g. new arg to mremap)
  * Addition of spinlocks to tcmalloc to reduce contention cost
  * Speed up tcmalloc by using __thread on systems that support TLS
  * Total redesign of heap-checker to improve liveness checking
  * More portable stack-frame analysis -- no more hard-coded constants!
  * Disentangled heap-profiler code and heap-checker code
  * Several new unittests to test, e.g., thread-contention costs
  * Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64
  *** KNOWN PROBLEMS:
  * CPU-profiling may crash on x86_64 (64-bit) systems.  See the README
  * Profiling/heap-checking may deadlock on x86_64 systems.  See README

 -- Google Inc. <opensource@google.com>  Fri, 13 Apr 2007 14:50:51 -0700

google-perftools (0.8-1) unstable; urgency=low

  * google-perftools: version 0.8 release
  * Experimental support for remote profiling added to pprof (many)
  * Fixed race condition in ProfileData::FlushTable (etune)
  * Better support for weird /proc maps (maxim, mec)
  * Fix heap-checker interaction with gdb (markus)
  * Better 64-bit support in pprof (aruns)
  * Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay)
  * Cast syscall(SYS_mmap); works on more 64-bit systems now (menage)
  * Document the text output of pprof! (csilvers)
  * Better compiler support for no-THREADS and for old compilers (csilvers)
  * Make libunwind the default stack unwinder for x86-64 (aruns)
  * Somehow the COPYING file got erased.  Regenerate it (csilvers)

 -- Google Inc. <opensource@google.com>  Wed, 14 Jun 2006 15:11:14 -0700

google-perftools (0.7-1) unstable; urgency=low

  * google-perftools: version 0.7 release
  * Major rewrite of thread introspection for new kernels (markus)
  * Major rewrite of heap-checker to use new thread tools (maxim)
  * Add proper support for following data in thread registers (maxim)
  * Syscall support for older kernels, including _syscall6 (markus)
  * Support PIC mode (markus, mbland, iant)
  * Better support for running in non-threaded contexts (csilvers)

 -- Google Inc. <opensource@google.com>  Thu, 13 Apr 2006 20:59:09 -0700

google-perftools (0.6-1) unstable; urgency=low

  * google-perftools: version 0.6 release
  * More sophisticated stacktrace usage, possibly using libunwind (aruns)
  * Update pprof to handle 64-bit profiles (dehnert)
  * Fix GetStackTrace to correctly return top stackframe (sanjay)
  * Add ANSI compliance for new and new[], including new_handler (jkearney)
  * More accuracy by reading ELF files directly rather than objdump (mec)
  * Add readline support for pprof (addi)
  * Add #includes for PPC (csilvers)
  * New PC-detection routine for ibook powerpc (asbestoshead)
  * Vastly improved tcmalloc unittest (csilvers)
  * Move documentation from /usr/doc to /usr/share/doc

 -- Google Inc. <opensource@google.com>  Fri, 27 Jan 2006 14:04:27 -0800

google-perftools (0.5-1) unstable; urgency=low

  * google-perftools: version 0.5 release
  * Add va_start/va_end calls around vsnprintf() (csilvers)
  * Write our own __syscall_return(), since it's not defined
    consistently on all 64-bit linux distros (markus)

 -- Google Inc. <opensource@google.com>  Mon Nov 14 17:28:59 2005

google-perftools (0.4-1) unstable; urgency=low

  * google-perftools: version 0.4 release
  * Decrease fragmentation in tcmalloc (lefevere)
  * Support for ARM in some of the thread-specific code (markus)
  * Turn off heap-checker for statically-linked binaries, which
    cause error leak reports now (etune)
  * Many pprof improvements, including a command-line interface (jeff)
  * CPU profiling now automatically affects all threads in linux 2.6.
    (Kernel bugs break CPU profiling and threads in linux 2.4 a bit.)
    ProfilerEnable() and ProfilerDisable() are deprecated.  (sanjay)
  * tcmalloc now correctly intercepts memalign (m3b, maxim)
  * Syntax fix: added missing va_end()s.  Helps non-gcc compiling (etune)
  * Fixed a few coredumper bugs: race condition after PTRACE_DETACH,
    ignore non-aligned stackframe pointers (markus, menage)
  * 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay)
  * Better support for finding threads in linux (markus)
  * tcmalloc now tracks those stack traces that allocate memory (sanjay)
  * Work around a weird setspecific problem (sanjay)
  * Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay)

 -- Google Inc. <opensource@google.com>  Wed, 26 Oct 2005 15:19:16 -0700

google-perftools (0.3-1) unstable; urgency=low

  * google-perftools: version 0.3 release
  * Add missing errno include for one of the unittests (csilvers)
  * Reduce tcmalloc startup memory from 5M to 256K (sanjay)
  * Add support for mallopt() and mallinfo (sanjay)
  * Improve stacktrace's performance on some 64-bit systems (etune)
  * Improve the stacktrace unittest (etune)
  
 -- Google Inc. <opensource@google.com>  Fri, 24 Jun 2005 18:02:26 -0700

google-perftools (0.2-1) unstable; urgency=low

  * google-perftools: version 0.2 release
  * Use mmap2() instead of mmap(), to map more memory (menage)
  * Do correct pthread-local checking in heap-checker! (maxim)
  * Avoid overflow on 64-bit machines in pprof (sanjay)
  * Add a few more GetPC() functions, including for AMD (csilvers)
  * Better method for overriding pthread functions (menage)
  * (Hacky) fix to avoid overwriting profile files after fork() (csilvers)
  * Crashing bugfix involving dumping heaps on small-stack threads (tudor)
  * Allow library versions with letters at the end (csilvers)
  * Config fixes for systems that don't define PATH_MAX (csilvers)
  * Confix fixes so we no longer need config.h after install (csilvers)
  * Fix to pprof to correctly read very big cpu profiles (csilvers)
  * Fix to pprof to deal with new commandline flags in modern gv's
  * Better error reporting when we can't access /proc/maps (etune)
  * Get rid of the libc-preallocate code (which could crash on some
    systems); no longer needed with local-threads fix (csilvers)

 -- Google Inc. <opensource@google.com>  Tue, 31 May 2005 08:14:38 -0700

google-perftools (0.1-1) unstable; urgency=low

  * Initial release.
    The google-perftools package contains some utilities to improve
    and analyze the performance of C++ programs.  This includes an
    optimized thread-caching malloc() and cpu and heap profiling
    utilities.

 -- Google Inc. <opensource@google.com>  Fri, 11 Mar 2005 08:07:33 -0800