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* Clarified meaning of various malloc stats
* Change from ATTRIBUTED_DEPRECATED to comments
* Make array-size a var to compile under clang
* Reduce page map key size under x86_64 by 4.4MB
* Added full qualification to MemoryBarrier
* Support systems that capitalize /proc weirdly
* Avoid gcc warning: exporting type in unnamed ns
* Add some dynamic annotations for gcc attributes
* Add support for census profiler in pprof
* Speed up pprof's ExtractSymbols
* Speed up GoogleOnce
* Add pkg-config (.pc) files
* Detect when __environ exists but is NULL
* Improve spinlock contention performance
* Add GetFreeListSizes
* Improve sampling_test, eg by adding no-inline
* Relax malloc_extension test-check for big pages
* Add proper library version number information
* Update from autoconf 2.64 to 2.65
* Better document how to write a server that works with pprof
* Change FillProcSelfMaps to better handle out-of-space
* No longer hook _aligned_malloc/free in windows
* Handle function-forwarding in DLLs when patching (in windows)
* Update .vcproj files that had wrong .cc files in them (!)
* get rid of unnecessary 'size < 0'
* fix comments a bit in sysinfo.cc
* another go at improving malloc-stats output
* fix comment typo in profiler.cc
* Add a few more thread annotations
* Try to read TSC frequency from 'tsc_freq_khz'
* Fix annotalysis/TSAN incompatibility
* Add pprof --evince to go along with --gv
* Document need for sampling to use GetHeapSample
* Fix flakiness in malloc_extension_test
* Separate out synchronization profiling routines
git-svn-id: http://gperftools.googlecode.com/svn/trunk@99 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* Add -DTCMALLOC_LARGE_PAGES: better perf for some workloads (rus)
* Extend pprof --tools to allow per-tool configs (csilvers)
* Have STL_Allocator pass on # bytes to free (richardfang)
* Add a header guard to config.h (csilvers)
* DOC: Clean up documentation around tcmalloc.slack_bytes (fikes)
* DOC: Document ProfilerFlush, ProfilerStartWithOptions (csilvers)
* PORTING: Work around a gcc 4.5.0 optimization bug (csilvers)
* PORTING: Use -fno-builtin-malloc and friends when compiling tcmalloc
* PORTING: Define _WIN32_WINNT high enough for mingw (csilvers)
* PORTING: Work around libtool bug getting deps wrong in some cases
* Update README.windows to emphasize $IncludeDir more (csilvers)
* Rename README.windows to README_windows.txt (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@95 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* Add a flag to ingore unaligned-ptr leaks (archanakannan)
* PORTING: Add get-pc capabilities for a new OS (csilvers)
* Don't register malloc extension under valgrind (csilvers)
* Fix throw specs for our global operator new (chandlerc)
* PORTING: link to instructions on windows static overrides (mbelshe)
* Fix prototype differences in debugalloc (chandlerc, csilvers, wan)
* Change pprof to handle big-endian input files (csilvers)
* Properly align allocation sizes on Windows (antonm)
* Improve IsRunningOnValgrind, using valgrind.h (csilvers, kcc)
* Improve the accuracy of system_alloc actual_size (csilvers)
* Add interactive callgrind support to pprof (weidenri...)
* Fix off-by-one problems when symbolizing in pprof (dpeng)
* Be more permissive in allowed library names, in pprof (csilvers)
* PORTING: Fix pc_from_ucontext to handle cygwin and redhat7 (csilvers)
* Fix stacktrace to avoid inlining (ppluzhnikov)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@91 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* Add HEAP_CHECK_MAX_LEAKS envvar (glider)
* BUGFIX: debugallocation now calls cpp_alloc for new (willchan)
* BUGFIX: tc_set_new_mode() respected for realloc and calloc (willchan)
* BUGFIX: fix opt-mode maybe-crash on debugallocation_test (csilvers)
* Print alloc size when mmap fails (hakon)
* Add ITIMER_REAL support (csilvers, nabeelmian)
* BUGFIX: correctly report double-frees (csilvers)
* Export tc_set_new_mode() from the .h file (willchan)
* Restructure Symbolize to make it more efficient (glider)
* PORTING: Augment sysinfo to work on 64-bit OS X (csilvers)
* Add two numeric pageheap properties to MallocExtension (fikes)
* PORTING: Use libunwind for i386 when using --omitfp (ppluzhnikov)
* Add ReleaseToSystem(num_bytes) (kash)
* Provide correct library filenames under solaris (jeffrey)
* BUGFIX: simple fix in pprof --raw mode (mrabkin)
* PORTING: Prefer sys/ucontext.h to fix OS 10.6 builds (csilvers)
* Improve support for inlined functions in pprof (sanjay)
* Update wget code to not use keepalive (mrabkin, csilvers)
* PORTING: correctly handle x86_64 machines that use fp's (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@79 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* Fix unsetting of hooks before forking, in debug mode (maxim)
* Add some documention for pmuprofile (aruns)
* Speed up futex with FUTEX_PRIVATE_FLAG (m3b)
* Fix os x 10.6: prefer sys/ucontext.h to ucontext.h (csilvers)
* Fix C shims to be actually valid C: malloc_extension/etc (csilvers)
* Fix a longtime memset bug (csilvers)
* Implement nothrow versions of delete (csilvers)
* Fix recursively-unmapped-region accounting (ppluzhnikov)
* Better distinguish between real and fake VDSO (ppluzhnikov)
* Modify span coalescing to improve performance (sanjay)
* WINDOWS: Remove unnecessary lock around VirtualAlloc (mbelshe)
* Remove performance tests for ptmalloc2 (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@77 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 1.4 release
* Add debugallocation library, to catch memory leaks, stomping, etc
* Add --raw mode to allow for delayed processing of pprof files
* Use less memory when reading CPU profiles
* New environment variables to control kernel-allocs (sbrk, memfs, etc)
* Add MarkThreadBusy(): performance improvement
* Remove static thread-cache-size code; all is dynamic now
* Add new HiddenPointer class to heap checker
* BUGFIX: pvalloc(0) allocates now (found by new debugalloc library)
* BUGFIX: valloc test (not implementation) no longer overruns memory
* BUGFIX: GetHeapProfile no longer deadlocks
* BUGFIX: Support unmapping memory regions before main
* BUGFIX: Fix some malloc-stats formatting
* BUGFIX: Don't crash as often when freeing libc-allocated memory
* BUGFIX: Deal better with incorrect PPROF_PATH when symbolizing
* BUGFIX: weaken new/delete/etc in addition to malloc/free/etc
* BUGFIX: Fix return value of GetAllocatedSize
* PORTING: Fix mmap-#define problem on some 64-bit systems
* PORTING: Call ranlib again (some OS X versions need it)
* PORTING: Fix a leak when building with LLVM
* PORTING: Remove some unneeded bash-ishs from testing scripts
* WINDOWS: Support library unloading as well as loading
* WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when patching
git-svn-id: http://gperftools.googlecode.com/svn/trunk@76 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 1.3 release
* Provide our own name for memory functions: tc_malloc, etc (csilvers)
* Weaken memory-alloc functions so user can override them (csilvers)
* Remove meaningless delete(nothrow) and delete[](nothrow) (csilvers)
* BUILD: replace clever libtcmalloc/profiler.a with a new .a (csilvers)
* PORTING: improve windows port by using google spinlocks (csilvers)
* PORTING: Fix RedHat 9 memory allocation in heapchecker (csilvers)
* PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS (mbelshe)
* PORTING/BUGFIX: Make sure we don't clobber GetLastError (mbelshe)
* BUGFIX: get rid of useless data for callgrind (weidenrinde)
* BUGFIX: Modify windows patching to deadlock sometimes (csilvers)
* BUGFIX: an improved fix for hook handling during fork (csilvers)
* BUGFIX: revamp profiler_unittest.sh, which was very broken (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@74 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 1.2 release
* Allow large_alloc_threshold=0 to turn it off entirely (csilvers)
* Die more helpfully when out of memory for internal data (csilvers)
* Refactor profile-data gathering, add a new unittest (cgd, nabeelmian)
* BUGFIX: fix rounding errors with static thread-size caches (addi)
* BUGFIX: disable hooks better when forking in leak-checker (csilvers)
* BUGFIX: fix realloc of crt pointers on windows (csilvers)
* BUGFIX: do a better job of finding binaries in .sh tests (csilvers)
* WINDOWS: allow overriding malloc/etc instead of patching (mbelshe)
* PORTING: fix compilation error in a ppc-specific file (csilvers)
* PORTING: deal with quirks in cygwin's /proc/self/maps (csilvers)
* PORTING: use 'A' version of functions for ascii input (mbelshe)
* PORTING: generate .so's on cygwin and mingw (ajenjo)
* PORTING: disable profiler methods on cygwin (jperkins)
* Updated autoconf version to 2.61 and libtool version to 1.5.26
git-svn-id: http://gperftools.googlecode.com/svn/trunk@68 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 1.1 release
* Dynamically resize thread caches -- nice perf. improvement (kash)
* Add VDSO support to give better stacktraces in linux (ppluzhnikov)
* Improve heap-profiling sampling algorithm (ford)
* Rewrite leak-checking code: should be faster and more robust (sanjay)
* Use ps2 instead of ps for dot: better page cropping for gv (csilvers)
* Disable malloc-failure warning messages by default (csilvers)
* Update config/Makefile to disable tests on a per-OS basis (csilvers)
* PORTING: Get perftools compiling under MSVC 7.1 again (csilvers)
* PORTING: Get perftools compiling under cygwin again (csilvers)
* PORTING: automatically set library flags for solaris x86 (csilvers)
* Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP (csilvers)
* Add --enable flags to allow selective building (csilvers)
* Put addr2line-pdb and nm-pdb in proper output directory (csilvers)
* Remove deprecated DisableChecksIn (sanjay)
* DOCUMENTATION: Document most MallocExtension routines (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@66 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 0.98 release
* Add ProfilerStartWithOptions() (cgd)
* Change tcmalloc_minimal to not do any stack-tracing at all (csilvers)
* Prefer mmap to sbrk for 64-buit debug mode (sanjay)
* Fix accounting for some tcmalloc stats (sanjay)
* Use setrlimit() to keep unittests from killing the machine (odo)
* Fix a bug when sbrk-ing near address 4G (csilvers)
* Make MallocHook thread-safe (jyasskin)
* Fix windows build for MemoryBarrier (jyasskin)
* Fix CPU-profiler docs to mention correct libs (csilvers)
* Fix for GetHeapProfile() when heap-profiling is off (maxim)
* Avoid realloc resizing ping-pongs using hysteresis (csilvers)
* Add --callgrind output support to pprof (klimek)
* Fix profiler.h and heap-profiler.h to be C-compatible (csilvers)
* Break malloc_hook.h into two parts to reduce dependencies (csilvers)
* Better handle systems that don't implement mmap (csilvers)
* PORTING: disable system_alloc_unittest for msvc (csilvers)
* PORTING: Makefile tweaks to build better on cygwin (csilvers)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@52 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 0.94 release
* PORTING: MinGW/Msys support -- runs same code as MSVC does (csilvers)
* PORTING: Add NumCPUs support for Mac OS X (csilvers)
* Work around a sscanf bug in glibc(?) (waldemar)
* Fix Windows MSVC bug triggered by thread deletion (csilvers)
* Fix bug that triggers in MSVC /O2: missing volatile (gpike)
* March-of-time support: quiet warnings/errors for gcc 4.2, OS X 10.5
* Modify pprof so it works without nm: useful for windows (csilvers)
* pprof: Support filtering for CPU profiles (cgd)
* Bugfix: have realloc report to hooks in all situations (maxim)
* Speed improvement: replace slow memcpy with std::copy (soren)
* Speed: better iterator efficiency in RecordRegionRemoval (soren)
* Speed: minor speed improvements via better bitfield alignment (gpike)
* Documentation: add documentation of binary profile output (cgd)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@40 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* PORTING: everything compiles on Solaris, OS X, FreeBSD (see INSTALL)
* PORTING: cpu-profiler works on most platforms (much better GetPC())
* PORTING: heap-profiler works on most platforms
* PORTING: improved windows support, including release builds
* No longer build or run ptmalloc tests by default
* Add support for using memfs filesystem to allocate memory in linux
* WINDOWS: give debug library and release library different names
Tue Jul 17 22:26:27 2007 Google Inc. <opensource@google.com>
git-svn-id: http://gperftools.googlecode.com/svn/trunk@38 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: version 0.92 release
* PERFORMANCE: use a packed cache to speed up tcmalloc
* PORTING: preliminary windows support! (see README.windows)
* PORTING: better support for solaris, OS X, FreeBSD (see INSTALL)
* Envvar support for running the heap-checker under gdb
* Add weak declarations to maybe_threads to fix no-pthreads compile bugs
* Some 64bit fixes, especially with pprof
* Better heap-checker support for some low-level allocations
* Fix bug where heap-profiles would sometimes get truncated
* New documentation about how to handle common heap leak situations
* Use computed includes for hash_map/set: easier config
* Added all used .m4 templates to the distribution
git-svn-id: http://gperftools.googlecode.com/svn/trunk@36 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* 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
git-svn-id: http://gperftools.googlecode.com/svn/trunk@28 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* 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
git-svn-id: http://gperftools.googlecode.com/svn/trunk@19 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* 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)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@17 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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* google-perftools: 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.
git-svn-id: http://gperftools.googlecode.com/svn/trunk@9 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
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