2007-03-22 03:28:56 +00:00
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Tue Feb 8 09:57:17 2005 Google Inc. <opensource@google.com>
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2007-03-22 03:00:33 +00:00
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* google-perftools: initial release:
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The google-perftools package contains some utilities to improve
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and analyze the performance of C++ programs. This includes an
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optimized thread-caching malloc() and cpu and heap profiling
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utilities.
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2007-03-22 03:28:56 +00:00
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Tue May 31 08:14:38 2005 Google Inc. <opensource@google.com>
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* google-perftools: version 0.2 release
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* Use mmap2() instead of mmap(), to map more memory (menage)
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* Do correct pthread-local checking in heap-checker! (maxim)
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* Avoid overflow on 64-bit machines in pprof (sanjay)
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* Add a few more GetPC() functions, including for AMD (csilvers)
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* Better method for overriding pthread functions (menage)
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* (Hacky) fix to avoid overwriting profile files after fork() (csilvers)
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* Crashing bugfix involving dumping heaps on small-stack threads (tudor)
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* Allow library versions with letters at the end (csilvers)
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* Config fixes for systems that don't define PATH_MAX (csilvers)
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* Confix fixes so we no longer need config.h after install (csilvers)
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* Fix to pprof to correctly read very big cpu profiles (csilvers)
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* Fix to pprof to deal with new commandline flags in modern gv's
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* Better error reporting when we can't access /proc/maps (etune)
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* Get rid of the libc-preallocate code (which could crash on some
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systems); no longer needed with local-threads fix (csilvers)
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2007-03-22 04:42:30 +00:00
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Fri Jun 24 18:02:26 2005 Google Inc. <opensource@google.com>
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2007-03-22 04:45:23 +00:00
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* google-perftools: version 0.3 release
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2007-03-22 04:42:30 +00:00
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* Add missing errno include for one of the unittests (csilvers)
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* Reduce tcmalloc startup memory from 5M to 256K (sanjay)
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* Add support for mallopt() and mallinfo (sanjay)
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* Improve stacktrace's performance on some 64-bit systems (etune)
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* Improve the stacktrace unittest (etune)
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2007-03-22 04:44:18 +00:00
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Wed Oct 26 15:19:16 2005 Google Inc. <opensource@google.com>
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2007-03-22 04:45:23 +00:00
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* google-perftools: version 0.4 release
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2007-03-22 04:44:18 +00:00
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* Decrease fragmentation in tcmalloc (lefevere)
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* Support for ARM in some of the thread-specific code (markus)
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* Turn off heap-checker for statically-linked binaries, which
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cause error leak reports now (etune)
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* Many pprof improvements, including a command-line interface (jeff)
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* CPU profiling now automatically affects all threads in linux 2.6.
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(Kernel bugs break CPU profiling and threads in linux 2.4 a bit.)
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ProfilerEnable() and ProfilerDisable() are deprecated. (sanjay)
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* tcmalloc now correctly intercepts memalign (m3b, maxim)
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* Syntax fix: added missing va_end()s. Helps non-gcc compiling (etune)
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* Fixed a few coredumper bugs: race condition after PTRACE_DETACH,
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ignore non-aligned stackframe pointers (markus, menage)
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* 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay)
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* Better support for finding threads in linux (markus)
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* tcmalloc now tracks those stack traces that allocate memory (sanjay)
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* Work around a weird setspecific problem (sanjay)
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* Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay)
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2007-03-22 04:45:23 +00:00
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Mon Nov 14 17:28:59 2005 Google Inc. <opensource@google.com>
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* google-perftools: version 0.5 release
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* Add va_start/va_end calls around vsnprintf() (csilvers)
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* Write our own __syscall_return(), since it's not defined
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consistently on all 64-bit linux distros (markus)
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2007-03-22 04:46:29 +00:00
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Fri Jan 27 14:04:27 2006 Google Inc. <opensource@google.com>
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* google-perftools: version 0.6 release
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* More sophisticated stacktrace usage, possibly using libunwind (aruns)
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* Update pprof to handle 64-bit profiles (dehnert)
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* Fix GetStackTrace to correctly return top stackframe (sanjay)
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* Add ANSI compliance for new and new[], including new_handler (jkearney)
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* More accuracy by reading ELF files directly rather than objdump (mec)
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* Add readline support for pprof (addi)
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* Add #includes for PPC (csilvers)
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* New PC-detection routine for ibook powerpc (asbestoshead)
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* Vastly improved tcmalloc unittest (csilvers)
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* Move documentation from /usr/doc to /usr/share/doc
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2007-03-22 04:48:00 +00:00
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Thu Apr 13 20:59:09 2006 Google Inc. <opensource@google.com>
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* google-perftools: version 0.7 release
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* Major rewrite of thread introspection for new kernels (markus)
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* Major rewrite of heap-checker to use new thread tools (maxim)
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* Add proper support for following data in thread registers (maxim)
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* Syscall support for older kernels, including _syscall6 (markus)
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* Support PIC mode (markus, mbland, iant)
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* Better support for running in non-threaded contexts (csilvers)
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2007-03-22 04:55:49 +00:00
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Wed Jun 14 15:11:14 2006 Google Inc. <opensource@google.com>
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* google-perftools: version 0.8 release
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* Experimental support for remote profiling added to pprof (many)
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* Fixed race condition in ProfileData::FlushTable (etune)
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* Better support for weird /proc maps (maxim, mec)
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* Fix heap-checker interaction with gdb (markus)
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* Better 64-bit support in pprof (aruns)
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* Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay)
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* Cast syscall(SYS_mmap); works on more 64-bit systems now (menage)
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* Document the text output of pprof! (csilvers)
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* Better compiler support for no-THREADS and for old compilers (csilvers)
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* Make libunwind the default stack unwinder for x86-64 (aruns)
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* Somehow the COPYING file got erased. Regenerate it (csilvers)
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2007-04-16 20:49:32 +00:00
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Fri Apr 13 14:50:51 2007 Google Inc. <opensource@google.com>
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* google-perftools: version 0.90 release
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* (As the version-number jump hints, this is a major new release:
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almost every piece of functionality was rewritten. I can't do
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justice to all the changes, but will concentrate on highlights.)
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*** USER-VISIBLE CHANGES:
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* Ability to "release" unused memory added to tcmalloc
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* Exposed more tweaking knobs via environment variables (see docs)
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* pprof tries harder to map addresses to functions
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* tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10
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*** INTERNAL CHANGES:
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* Much better 64-bit support
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* Better multiple-processor support (e.g. multicore contention tweaks)
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* Support for recent kernel ABI changes (e.g. new arg to mremap)
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* Addition of spinlocks to tcmalloc to reduce contention cost
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* Speed up tcmalloc by using __thread on systems that support TLS
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* Total redesign of heap-checker to improve liveness checking
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* More portable stack-frame analysis -- no more hard-coded constants!
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* Disentangled heap-profiler code and heap-checker code
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* Several new unittests to test, e.g., thread-contention costs
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* Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64
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*** KNOWN PROBLEMS:
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* CPU-profiling may crash on x86_64 (64-bit) systems. See the README
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* Profiling/heap-checking may deadlock on x86_64 systems. See README
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