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1 Fri Feb 03 15:40:45 2012 Google Inc. <google-perftools@googlegroups.com>
3 * gperftools: version 2.0
4 * Renamed the project from google-perftools to gperftools (csilvers)
5 * Renamed the .deb/.rpm packagse from google-perftools to gperftools too
6 * Renamed include directory from google/ to gperftools/ (csilvers)
7 * Changed the 'official' perftools email in setup.py/etc
8 * Renamed google-perftools.sln to gperftools.sln
9 * PORTING: Removed bash-isms & grep -q in heap-checker-death_unittest.sh
10 * Changed copyright text to reflect Google's relinquished ownership
12 Tue Jan 31 10:43:50 2012 Google Inc. <opensource@google.com>
14 * google-perftools: version 1.10 release
15 * PORTING: Support for patching assembly on win x86_64! (scott.fr...)
16 * PORTING: Work around atexit-execution-order bug on freebsd (csilvers)
17 * PORTING: Patch _calloc_crt for windows (roger orr)
18 * PORTING: Add C++11 compatibility method for stl allocator (jdennett)
19 * PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd (csilvers)
20 * PORTING: Don't use SYS_open when not supported on solaris (csilvers)
21 * PORTING: Do not assume uname() returns 0 on success (csilvers)
22 * LSS: Improved ARM support in linux-syscall-support (dougkwan)
23 * LSS: Get rid of unused syscalls in linux-syscall-support (csilvers)
24 * LSS: Fix broken mmap wrapping for ppc (markus)
25 * LSS: Emit .cfi_adjust_cfa_offset when appropriate (ppluzhnikov)
26 * LSS: Be more accurate in register use in __asm__ (markus)
27 * LSS: Fix __asm__ calls to compile under clang (chandlerc)
28 * LSS: Fix ARM inline assembly bug around r7 and swi (lcwu)
29 * No longer log when an allocator fails (csilvers)
30 * void* -> const void* for MallocExtension methods (llib)
31 * Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube)
32 * Replace int-based abs with more correct fabs in a test (pmurin)
34 Thu Dec 22 16:22:45 2011 Google Inc. <opensource@google.com>
36 * google-perftools: version 1.9 release
37 * Lightweight check for double-frees (blount)
38 * BUGFIX: Fix pprof to exit properly if run with no args (dagitses)
39 * Suggest ASan as a way to diagnose buggy code (ppluzhnikov)
40 * Get rid of unused CACHELINE_SIZE (csilvers)
41 * Replace atexit() calls with global dtors; helps freebsd (csilvers)
42 * Disable heap-checker under AddressSanitizer (kcc)
43 * Fix bug in powerpc stacktracing (ppluzhnikov)
44 * PERF: Use exponential backoff waiting for spinlocks (m3b)
45 * Fix 64-bit nm on 32-bit binaries in pprof (csilvers)
46 * Add ProfileHandlerDisallowForever (rsc)
47 * BUGFIX: Shell escape when forking in pprof (csilvers)
48 * No longer combine overloaded functions in pprof (csilvers)
49 * Fix address-normalizing bug in pprof (csilvers)
50 * More consistently call abort() instead of exit() on failure (csilvers)
51 * Allow NoGlobalLeaks to be safely called more than once (csilvers)
52 * PORTING/BUGFIX: Fix ARM cycleclock to use volatile asm (dougkwan)
53 * PORTING: 64-bit atomic ops for ARMv7 (dougkwan)
54 * PORTING: Implement stacktrace for ARM (dougkwan)
55 * PORTING: Fix malloc_hook_mmap_linux for ARM (dougkwan)
56 * PORTING: Update linux_syscall_support.h for ARM/etc (evannier, sanek)
57 * PORTING: Fix freebsd to work on x86_64 (chapp...@gmail.com)
58 * PORTING: Added additional SYS_mmap fixes for FreeBSD (chappedm)
59 * PORTING: Allow us to compile on OS X 10.6 and run on 10.5 (raltherr)
60 * PORTING: Check for mingw compilers that *do* define timespec
61 * PORTING: Add "support" for MIPS cycletimer
62 * PORTING: Fix fallback cycle-timer to work with Now (dougkwan)
63 * PERF: Move stack trace collecting out of the mutex (taylorc)
64 * PERF: Get the deallocation stack trace outside the mutex (sean)
65 * Make PageHeap dynamically allocated for leak checks (maxim)
66 * BUGFIX: Fix probing of nm -f behavior in pprof (dpeng)
67 * BUGFIX: Fix a race with the CentralFreeList lock before main (sanjay)
68 * Support /pprof/censusprofile url arguments (rajatjain)
69 * Change IgnoreObject to return its argument (nlewycky)
70 * Update malloc-hook files to support more CPUs
71 * BUGFIX: write our own strstr to avoid libc problems (csilvers)
72 * Use simple callgrind compression facility in pprof
73 * Print an error message when we can't run pprof to symbolize (csilvers)
74 * Die in configure when g++ is't installed (csilvers)
75 * DOC: Beef up the documentation a bit about using libunwind (csilvers)
77 Fri Aug 26 13:29:25 2011 Google Inc. <opensource@google.com>
79 * google-perftools: version 1.8.3 release
80 * Added back the 'pthreads unsafe early' #define, needed for FreeBSD
82 Thu Aug 11 15:01:47 2011 Google Inc. <opensource@google.com>
84 * google-perftools: version 1.8.2 release
85 * Fixed calculation of patchlevel, 'make check' should all pass again
87 Tue Jul 26 20:57:51 2011 Google Inc. <opensource@google.com>
89 * google-perftools: version 1.8.1 release
90 * Added an #include to fix compile breakage on latest gcc's
91 * Removed an extra , in the configure.ac script
93 Fri Jul 15 16:10:51 2011 Google Inc. <opensource@google.com>
95 * google-perftools: version 1.8 release
96 * PORTING: (Disabled) support for patching mmap on freebsd (chapp...)
97 * PORTING: Support volatile __malloc_hook for glibc 2.14 (csilvers)
98 * PORTING: Use _asm rdtsc and __rdtsc to get cycleclock in windows (koda)
99 * PORTING: Fix fd vs. HANDLE compiler error on cygwin (csilvers)
100 * PORTING: Do not test memalign or double-linking on OS X (csilvers)
101 * PORTING: Actually enable TLS on windows (jontra)
102 * PORTING: Some work to compile under Native Client (krasin)
103 * PORTING: deal with pthread_once w/o -pthread on freebsd (csilvers)
104 * Rearrange libc-overriding to make it easier to port (csilvers)
105 * Display source locations in pprof disassembly (sanjay)
106 * BUGFIX: Actually initialize allocator name (mec)
107 * BUGFIX: Keep track of 'overhead' bytes in malloc reporting (csilvers)
108 * Allow ignoring one object twice in the leak checker (glider)
109 * BUGFIX: top10 in pprof should print 10 lines, not 11 (rsc)
110 * Refactor vdso source files (tipp)
111 * Some documentation cleanups
112 * Document MAX_TOTAL_THREAD_CACHE_SIZE <= 1Gb (nsethi)
113 * Add MallocExtension::GetOwnership(ptr) (csilvers)
114 * BUGFIX: We were leaving out a needed $(top_srcdir) in the Makefile
115 * PORTING: Support getting argv0 on OS X
116 * Add 'weblist' command to pprof: like 'list' but html (sanjay)
117 * Improve source listing in pprof (sanjay)
118 * Cap cache sizes to reduce fragmentation (ruemmler)
119 * Improve performance by capping or increasing sizes (ruemmler)
120 * Add M{,un}mapReplacmenet hooks into MallocHook (ribrdb)
121 * Refactored system allocator logic (gangren)
122 * Include cleanups (csilvers)
123 * Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler)
124 * Clarify that tcmalloc stats are MiB (robinson)
125 * Remove support for non-tcmalloc debugallocation (blount)
126 * Add a new test: malloc_hook_test (csilvers)
127 * Change the configure script to be more crosstool-friendly (mcgrathr)
128 * PORTING: leading-underscore changes to support win64 (csilvers)
129 * Improve debugallocation tc_malloc_size (csilvers)
130 * Extend atomicops.h and cyceclock to use ARM V6+ optimized code (sanek)
131 * Change malloc-hook to use a list-like structure (llib)
132 * Add flag to use MAP_PRIVATE in memfs_malloc (gangren)
133 * Windows support for pprof: nul and /usr/bin/file (csilvers)
134 * TESTING: add test on strdup to tcmalloc_test (csilvers)
135 * Augment heap-checker to deal with no-inode maps (csilvers)
136 * Count .dll/.dylib as shared libs in heap-checker (csilvers)
137 * Disable sys_futex for arm; it's not always reliable (sanek)
138 * PORTING: change lots of windows/port.h macros to functions
139 * BUGFIX: Generate correct version# in tcmalloc.h on windows (csilvers)
140 * PORTING: Some casting to make solaris happier about types (csilvers)
141 * TESTING: Disable debugallocation_test in 'minimal' mode (csilvers)
142 * Rewrite debugallocation to be more modular (csilvers)
143 * Don't try to run the heap-checker under valgrind (ppluzhnikov)
144 * BUGFIX: Make focused stat %'s relative, not absolute (sanjay)
145 * BUGFIX: Don't use '//' comments in a C file (csilvers)
146 * Quiet new-gcc compiler warnings via -Wno-unused-result, etc (csilvers)
148 Fri Feb 04 15:54:31 2011 Google Inc. <opensource@google.com>
150 * google-perftools: version 1.7 release
151 * Reduce page map key size under x86_64 by 4.4MB (rus)
152 * Remove a flaky malloc-extension test (fdabek)
153 * Improve the performance of PageHeap::New (ond..., csilvers)
154 * Improve sampling_test with no-inline additions/etc (fdabek)
155 * 16-byte align debug allocs (jyasskin)
156 * Change FillProcSelfMaps to detect out-of-buffer-space (csilvers)
157 * Document the need for sampling to use GetHeapSample (csilvers)
158 * Try to read TSC frequency from tsc_freq_khs (adurbin)
159 * Do better at figuring out if tests are running under gdb (ppluzhnikov)
160 * Improve spinlock contention performance (ruemmler)
161 * Better internal-function list for pprof's /contention (ruemmler)
162 * Speed up GoogleOnce (m3b)
163 * Limit number of incoming/outgoing edges in pprof (sanjay)
164 * Add pprof --evince to go along with --gv (csilvers)
165 * Document the various ways to get heap-profiling information (csilvers)
166 * Separate out synchronization profiling routines (ruemmler)
167 * Improve malloc-stats output to be more understandable (csilvers)
168 * Add support for census profiler in pporf (nabeelmian)
169 * Document how pprof's /symbol must support GET requests (csilvers)
170 * Improve acx_pthread.m4 (ssuomi, liujisi)
171 * Speed up pprof's ExtractSymbols (csilvers)
172 * Ignore some known-leaky (java) libraries in the heap checker (davidyu)
173 * Make kHideMask use all 64 bits in tests (ppluzhnikov)
174 * Clean up pprof input-file handling (csilvers)
175 * BUGFIX: Don't crash if __environ is NULL (csilvers)
176 * BUGFIX: Fix totally broken debugallocation tests (csilvers)
177 * BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov)
178 * BUGFIX: Suppress all large allocs when report threshold is 0 (lexie)
179 * BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers)
180 * PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers)
181 * PORTING: Add stddef.h to make newer gcc's happy (csilvers)
182 * PORTING: Document some tricks for working under OS X (csilvers)
183 * PORTING: Don't try to check valgrind for windows (csilvers)
184 * PORTING: Make array-size a var to compile under clang (chandlerc)
185 * PORTING: No longer hook _aligned_malloc and _aligned_free (csilvers)
186 * PORTING: Quiet some gcc warnings (csilvers)
187 * PORTING: Replace %PRIxPTR with %p to be more portable (csilvers)
188 * PORTING: Support systems that capitalize /proc weirdly (sanek)
189 * PORTING: Treat arm3 the same as arm5t in cycletimer (csilvers)
190 * PORTING: Update windows logging to not allocate memory (csilvers)
191 * PORTING: avoid double-patching newer windows DLLs (roger.orr)
192 * PORTING: get dynamic_annotations.c to work on windows (csilvers)
193 * Add pkg-config .pc files for the 5 libraries we produce (csilvers)
194 * Added proper libtool versioning, so this lib will be 0.1.0 (csilvers)
195 * Moved from autoconf 2.64 to 2.65
197 Thu Aug 5 12:48:03 PDT 2010 Google Inc. <opensource@google.com>
199 * google-perftools: version 1.6 release
200 * Add tc_malloc_usable_size for compatibility with glibc (csilvers)
201 * Override malloc_usable_size with tc_malloc_usable_size (csilvers)
202 * Default to no automatic heap sampling in tcmalloc (csilvers)
203 * Add -DTCMALLOC_LARGE_PAGES, a possibly faster tcmalloc (rus)
204 * Make some functions extern "C" to avoid false ODR warnings (jyasskin)
205 * pprof: Add SVG-based output (rsc)
206 * pprof: Extend pprof --tools to allow per-tool configs (csilvers)
207 * pprof: Improve support of 64-bit and big-endian profiles (csilvers)
208 * pprof: Add interactive callgrind suport (weidenri...)
209 * pprof: Improve address->function mapping a bit (dpeng)
210 * Better detection of when we're running under valgrind (csilvers)
211 * Better CPU-speed detection under valgrind (saito)
212 * Use, and recommend, -fno-builtin-malloc when compiling (csilvers)
213 * Avoid false-sharing of memory between caches (bmaurer)
214 * BUGFIX: Fix heap sampling to use correct alloc size (bmauer)
215 * BUGFIX: Avoid gcc 4.0.x bug by making hook-clearing atomic (csilvers)
216 * BUGFIX: Avoid gcc 4.5.x optimization bug (csilvers)
217 * BUGFIX: Work around deps-determining bug in libtool 1.5.26 (csilvers)
218 * BUGFIX: Fixed test to use HAVE_PTHREAD, not HAVE_PTHREADS (csilvers)
219 * BUGFIX: Fix tls callback behavior on windows when using wpo (wtc)
220 * BUGFIX: properly align allocation sizes on Windows (antonm)
221 * BUGFIX: Fix prototypes for tcmalloc/debugalloc wrt throw() (csilvers)
222 * DOC: Updated heap-checker doc to match reality better (fischman)
223 * DOC: Document ProfilerFlush, ProfilerStartWithOptions (csilvers)
224 * DOC: Update docs for heap-profiler functions (csilvers)
225 * DOC: Clean up documentation around tcmalloc.slack_bytes (fikes)
226 * DOC: Renamed README.windows to README_windows.txt (csilvers)
227 * DOC: Update the NEWS file to be non-empty (csilvers)
228 * PORTING: Fix windows addr2line and nm with proper rc code (csilvers)
229 * PORTING: Add CycleClock and atomicops support for arm 5 (sanek)
230 * PORTING: Improve PC finding on cygwin and redhat 7 (csilvers)
231 * PORTING: speed up function-patching under windows (csilvers)
233 Tue Jan 19 14:46:12 2010 Google Inc. <opensource@google.com>
235 * google-perftools: version 1.5 release
236 * Add tc_set_new_mode (willchan)
237 * Make memalign functions + realloc respect tc_set_new_mode (willchan)
238 * Add ReleaseToSystem(num_bytes) (kash)
239 * Handle zero-length symbols a bit better in pprof (csilvers)
240 * Prefer __environ to /proc/self/environ in cpu profiler (csilvers)
241 * Add HEAP_CHECK_MAX_LEAKS flag to control #leaks to report (glider)
242 * Add two new numeric pageheap properties to MallocExtension (fikes)
243 * Print alloc size when mmap fails (hakon)
244 * Add ITIMER_REAL support to cpu profiler (csilvers, nabeelmian)
245 * Speed up symbolizer in heap-checker reporting (glider)
246 * Speed up futexes with FUTEX_PRIVATE_FLAG (m3b)
247 * Speed up tcmalloc but doing better span coalescing (sanjay)
248 * Better support for different wget's and addr2maps in pprof (csilvres)
249 * Implement a nothrow version of delete and delete[] (csilvers)
250 * BUGFIX: fix a race on module_libcs[i] in windows patching (csilvers)
251 * BUGFIX: Fix debugallocation to call cpp_alloc for new (willchan)
252 * BUGFIX: A simple bugfix for --raw mode (mrabkin)
253 * BUGFIX: Fix C shims to actually be valid C (csilvers)
254 * BUGFIX: Fix recursively-unmapped-region accounting (ppluzhnikov)
255 * BUGFIX: better distinguish real and fake vdso (ppluzhnikov)
256 * WINDOWS: replace debugmodule with more reliable psai (andrey)
257 * PORTING: Add .bundle as another shared library extension (csilvers)
258 * PORTING: Fixed a typo bug in the ocnfigure PRIxx m4 macro (csilvers)
259 * PORTING: Augment sysinfo to work on 64-bit OS X (csilvers)
260 * PORTING: Use sys/ucontext.h to fix compiing on OS X 10.6 (csilvers)
261 * PORTING: Fix sysinfo libname reporting for solaris x86 (jeffrey)
262 * PORTING: Use libunwind for i386 when using --omitfp (ppluzhnikov)
264 Thu Sep 10 13:51:15 2009 Google Inc. <opensource@google.com>
266 * google-perftools: version 1.4 release
267 * Add debugallocation library, to catch memory leaks, stomping, etc
268 * Add --raw mode to allow for delayed processing of pprof files
269 * Use less memory when reading CPU profiles
270 * New environment variables to control kernel-allocs (sbrk, memfs, etc)
271 * Add MarkThreadBusy(): performance improvement
272 * Remove static thread-cache-size code; all is dynamic now
273 * Add new HiddenPointer class to heap checker
274 * BUGFIX: pvalloc(0) allocates now (found by new debugalloc library)
275 * BUGFIX: valloc test (not implementation) no longer overruns memory
276 * BUGFIX: GetHeapProfile no longer deadlocks
277 * BUGFIX: Support unmapping memory regions before main
278 * BUGFIX: Fix some malloc-stats formatting
279 * BUGFIX: Don't crash as often when freeing libc-allocated memory
280 * BUGFIX: Deal better with incorrect PPROF_PATH when symbolizing
281 * BUGFIX: weaken new/delete/etc in addition to malloc/free/etc
282 * BUGFIX: Fix return value of GetAllocatedSize
283 * PORTING: Fix mmap-#define problem on some 64-bit systems
284 * PORTING: Call ranlib again (some OS X versions need it)
285 * PORTING: Fix a leak when building with LLVM
286 * PORTING: Remove some unneeded bash-ishs from testing scripts
287 * WINDOWS: Support library unloading as well as loading
288 * WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when patching
290 Tue Jun 9 18:19:06 2009 Google Inc. <opensource@google.com>
292 * google-perftools: version 1.3 release
293 * Provide our own name for memory functions: tc_malloc, etc (csilvers)
294 * Weaken memory-alloc functions so user can override them (csilvers)
295 * Remove meaningless delete(nothrow) and delete[](nothrow) (csilvers)
296 * BUILD: replace clever libtcmalloc/profiler.a with a new .a (csilvers)
297 * PORTING: improve windows port by using google spinlocks (csilvers)
298 * PORTING: Fix RedHat 9 memory allocation in heapchecker (csilvers)
299 * PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS (mbelshe)
300 * PORTING/BUGFIX: Make sure we don't clobber GetLastError (mbelshe)
301 * BUGFIX: get rid of useless data for callgrind (weidenrinde)
302 * BUGFIX: Modify windows patching to deadlock sometimes (csilvers)
303 * BUGFIX: an improved fix for hook handling during fork (csilvers)
304 * BUGFIX: revamp profiler_unittest.sh, which was very broken (csilvers)
306 Fri Apr 17 16:40:48 2009 Google Inc. <opensource@google.com>
308 * google-perftools: version 1.2 release
309 * Allow large_alloc_threshold=0 to turn it off entirely (csilvers)
310 * Die more helpfully when out of memory for internal data (csilvers)
311 * Refactor profile-data gathering, add a new unittest (cgd, nabeelmian)
312 * BUGFIX: fix rounding errors with static thread-size caches (addi)
313 * BUGFIX: disable hooks better when forking in leak-checker (csilvers)
314 * BUGFIX: fix realloc of crt pointers on windows (csilvers)
315 * BUGFIX: do a better job of finding binaries in .sh tests (csilvers)
316 * WINDOWS: allow overriding malloc/etc instead of patching (mbelshe)
317 * PORTING: fix compilation error in a ppc-specific file (csilvers)
318 * PORTING: deal with quirks in cygwin's /proc/self/maps (csilvers)
319 * PORTING: use 'A' version of functions for ascii input (mbelshe)
320 * PORTING: generate .so's on cygwin and mingw (ajenjo)
321 * PORTING: disable profiler methods on cygwin (jperkins)
322 * Updated autoconf version to 2.61 and libtool version to 1.5.26
324 Wed Mar 11 11:25:34 2009 Google Inc. <opensource@google.com>
326 * google-perftools: version 1.1 release
327 * Dynamically resize thread caches -- nice perf. improvement (kash)
328 * Add VDSO support to give better stacktraces in linux (ppluzhnikov)
329 * Improve heap-profiling sampling algorithm (ford)
330 * Rewrite leak-checking code: should be faster and more robust (sanjay)
331 * Use ps2 instead of ps for dot: better page cropping for gv (csilvers)
332 * Disable malloc-failure warning messages by default (csilvers)
333 * Update config/Makefile to disable tests on a per-OS basis (csilvers)
334 * PORTING: Get perftools compiling under MSVC 7.1 again (csilvers)
335 * PORTING: Get perftools compiling under cygwin again (csilvers)
336 * PORTING: automatically set library flags for solaris x86 (csilvers)
337 * Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP (csilvers)
338 * Add --enable flags to allow selective building (csilvers)
339 * Put addr2line-pdb and nm-pdb in proper output directory (csilvers)
340 * Remove deprecated DisableChecksIn (sanjay)
341 * DOCUMENTATION: Document most MallocExtension routines (csilvers)
343 Tue Jan 6 13:58:56 2009 Google Inc. <opensource@google.com>
345 * google-perftools: version 1.0 release
346 * Exactly the same as 1.0rc2
348 Sun Dec 14 17:10:35 2008 Google Inc. <opensource@google.com>
350 * google-perftools: version 1.0rc2 release
351 * Fix compile error on 64-bit systems (casting ptr to int) (csilvers)
353 Thu Dec 11 16:01:32 2008 Google Inc. <opensource@google.com>
355 * google-perftools: version 1.0rc1 release
356 * Replace API for selectively disabling heap-checker in code (sanjay)
357 * Add a pre-mmap hook (daven, adlr)
358 * Add MallocExtension interface to set memory-releasing rate (fikes)
359 * Augment pprof to allow any string ending in /pprof/profile (csilvers)
360 * PORTING: Rewrite -- and fix -- malloc patching for windows (dvitek)
361 * PORTING: Add nm-pdb and addr2line-pdb for use by pprof (dvitek)
362 * PORTING: Improve cygwin and mingw support (jperkins, csilvers)
363 * PORTING: Fix pprof for mac os x, other pprof improvements (csilvers)
364 * PORTING: Fix some PPC bugs in our locking code (anton.blanchard)
365 * A new unittest, smapling_test, to verify tcmalloc-profiles (csilvers)
366 * Turn off TLS for gcc < 4.1.2, due to a TLS + -fPIC bug (csilvers)
367 * Prefer __builtin_frame_address to assembly for stacktraces (nlewycky)
368 * Separate tcmalloc.cc out into multiple files -- finally! (kash)
369 * Make our locking code work with -fPIC on 32-bit x86 (aruns)
370 * Fix an initialization-ordering bug for tcmalloc/profiling (csilvers)
371 * Use "initial exec" model of TLS to speed up tcmalloc (csilvers)
372 * Enforce 16-byte alignment for tcmalloc, for SSE (sanjay)
374 Tue Sep 23 08:56:31 2008 Google Inc. <opensource@google.com>
376 * google-perftools: version 0.99.2 release
377 * COMPILE FIX: add #include needed for FreeBSD and OS X (csilvers)
379 Sat Sep 20 09:37:18 2008 Google Inc. <opensource@google.com>
381 * google-perftools: version 0.99.1 release
382 * BUG FIX: look for nm, etc in /usr/bin, not /usr/crosstool (csilvers)
384 Thu Sep 18 16:00:27 2008 Google Inc. <opensource@google.com>
386 * google-perftools: version 0.99 release
387 * Add IsHeapProfileRunning (csilvers)
388 * Add C shims for some of the C++ header files (csilvers)
389 * Fix heap profile file clean-up logic (maxim)
390 * Rename linuxthreads.c to .cc for better compiler support (csilvers)
391 * Add source info to disassembly in pprof (sanjay)
392 * Use open instead of fopen to avoid memory alloc (csilvers)
393 * Disable malloc extensions when running under valgrind (kcc)
394 * BUG FIX: Fix out-of-bound error by reordering a check (larryz)
395 * Add Options struct to ProfileData (cgd)
396 * Correct PC-handling of --base in pprof (csilvers)
397 * Handle 1 function occurring twice in an image (sanjay)
398 * Improve stack-data cleaning (maxim)
399 * Use 'struct Foo' to make header C compatible (csilvers)
400 * Add 'total' line to pprof --text (csilvers)
401 * Pre-allocate buffer for heap-profiler to avoid OOM errors (csilvers)
402 * Allow a few more env-settings to control tcmalloc (csilvers)
403 * Document some of the issues involving thread-local storage (csilvers)
404 * BUG FIX: Define strtoll and friends for windows (csilvers)
406 Mon Jun 9 16:47:03 2008 Google Inc. <opensource@google.com>
408 * google-perftools: version 0.98 release
409 * Add ProfilerStartWithOptions() (cgd)
410 * Change tcmalloc_minimal to not do any stack-tracing at all (csilvers)
411 * Prefer mmap to sbrk for 64-buit debug mode (sanjay)
412 * Fix accounting for some tcmalloc stats (sanjay)
413 * Use setrlimit() to keep unittests from killing the machine (odo)
414 * Fix a bug when sbrk-ing near address 4G (csilvers)
415 * Make MallocHook thread-safe (jyasskin)
416 * Fix windows build for MemoryBarrier (jyasskin)
417 * Fix CPU-profiler docs to mention correct libs (csilvers)
418 * Fix for GetHeapProfile() when heap-profiling is off (maxim)
419 * Avoid realloc resizing ping-pongs using hysteresis (csilvers)
420 * Add --callgrind output support to pprof (klimek)
421 * Fix profiler.h and heap-profiler.h to be C-compatible (csilvers)
422 * Break malloc_hook.h into two parts to reduce dependencies (csilvers)
423 * Better handle systems that don't implement mmap (csilvers)
424 * PORTING: disable system_alloc_unittest for msvc (csilvers)
425 * PORTING: Makefile tweaks to build better on cygwin (csilvers)
427 Mon Apr 21 15:20:52 2008 Google Inc. <opensource@google.com>
429 * google-perftools: version 0.97 release
430 * Refactor GetHeapProfile to avoid using malloc (maxim)
431 * Fix heap-checker and heap-profiler hook interactions (maxim)
432 * Fix a data race in MemoryRegionMap::Lock (jyasskin)
433 * Improve thread-safety of leak checker (maxim)
434 * Fix mmap profile to no longer deadlock (maxim)
435 * Fix rpm to have devel package depend on non-devel (csilvers)
436 * PORTING: Fix clock-speed detection for Mac OS X (csilvers)
438 Tue Mar 18 14:30:44 2008 Google Inc. <opensource@google.com>
440 * google-perftools: version 0.96 release
441 * major atomicops rewrite; fixed atomic ops code for linux/ppc (vchen)
442 * nix the stacktrace library; now build structure is simpler (csilvers)
443 * Speed up heap-checker, and reduce extraneous logging (maxim)
444 * Improve itimer code for NPTL case (cgd)
445 * Add source code annotations for use by valgrind, etc (kcc)
446 * PORTING: Fix high resolution timers for Mac OS X (adlr)
448 Tue Feb 19 12:01:31 2008 Google Inc. <opensource@google.com>
450 * google-perftools: version 0.95.1 release (bugfix release)
451 * x86_64 compile-fix: nix pread64 and pwrite64 (csilvers)
452 * more heap-checker debug logging (maxim)
453 * minor improvement to x86_64 CycleClock (gpike)
455 Tue Feb 12 12:28:32 2008 Google Inc. <opensource@google.com>
457 * google-perftools: version 0.95 release
458 * Better -- not perfect -- support for linux-ppc (csilvers)
459 * Fix race condition in libunwind stacktrace (aruns)
460 * Speed up x86 spinlock locking (m3b)
461 * Improve heap-checker performance (maxim)
462 * Heap checker traverses more ptrs inside heap-alloced objects (maxim)
463 * Remove deprecated ProfilerThreadState function (cgd)
464 * Update libunwind documentation for statically linked binaries (aruns)
466 Mon Dec 3 23:51:54 2007 Google Inc. <opensource@google.com>
468 * google-perftools: version 0.94.1 release (bugfix release)
469 * Fix missing #includes for x86_64 compile using libunwind (csilvers)
471 Thu Nov 29 07:59:43 2007 Google Inc. <opensource@google.com>
473 * google-perftools: version 0.94 release
474 * PORTING: MinGW/Msys support -- runs same code as MSVC does (csilvers)
475 * PORTING: Add NumCPUs support for Mac OS X (csilvers)
476 * Work around a sscanf bug in glibc(?) (waldemar)
477 * Fix Windows MSVC bug triggered by thread deletion (csilvers)
478 * Fix bug that triggers in MSVC /O2: missing volatile (gpike)
479 * March-of-time support: quiet warnings/errors for gcc 4.2, OS X 10.5
480 * Modify pprof so it works without nm: useful for windows (csilvers)
481 * pprof: Support filtering for CPU profiles (cgd)
482 * Bugfix: have realloc report to hooks in all situations (maxim)
483 * Speed improvement: replace slow memcpy with std::copy (soren)
484 * Speed: better iterator efficiency in RecordRegionRemoval (soren)
485 * Speed: minor speed improvements via better bitfield alignment (gpike)
486 * Documentation: add documentation of binary profile output (cgd)
488 Fri Aug 17 12:32:56 2007 Google Inc. <opensource@google.com>
490 * google-perftools: version 0.93 release
491 * PORTING: everything compiles on Solaris, OS X, FreeBSD (see INSTALL)
492 * PORTING: cpu-profiler works on most platforms (much better GetPC())
493 * PORTING: heap-profiler works on most platforms
494 * PORTING: improved windows support, including release builds
495 * No longer build or run ptmalloc tests by default
496 * Add support for using memfs filesystem to allocate memory in linux
497 * WINDOWS: give debug library and release library different names
499 Tue Jul 17 22:26:27 2007 Google Inc. <opensource@google.com>
501 * google-perftools: version 0.92 release
502 * PERFORMANCE: use a packed cache to speed up tcmalloc
503 * PORTING: preliminary windows support! (see README.windows)
504 * PORTING: better support for solaris, OS X, FreeBSD (see INSTALL)
505 * Envvar support for running the heap-checker under gdb
506 * Add weak declarations to maybe_threads to fix no-pthreads compile bugs
507 * Some 64bit fixes, especially with pprof
508 * Better heap-checker support for some low-level allocations
509 * Fix bug where heap-profiles would sometimes get truncated
510 * New documentation about how to handle common heap leak situations
511 * Use computed includes for hash_map/set: easier config
512 * Added all used .m4 templates to the distribution
514 Wed Apr 18 16:43:55 2007 Google Inc. <opensource@google.com>
516 * google-perftools: version 0.91 release
517 * Brown-paper-bag bugfix: compilation error on some x86-64 machines
519 Fri Apr 13 14:50:51 2007 Google Inc. <opensource@google.com>
521 * google-perftools: version 0.90 release
522 * (As the version-number jump hints, this is a major new release:
523 almost every piece of functionality was rewritten. I can't do
524 justice to all the changes, but will concentrate on highlights.)
525 *** USER-VISIBLE CHANGES:
526 * Ability to "release" unused memory added to tcmalloc
527 * Exposed more tweaking knobs via environment variables (see docs)
528 * pprof tries harder to map addresses to functions
529 * tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10
530 *** INTERNAL CHANGES:
531 * Much better 64-bit support
532 * Better multiple-processor support (e.g. multicore contention tweaks)
533 * Support for recent kernel ABI changes (e.g. new arg to mremap)
534 * Addition of spinlocks to tcmalloc to reduce contention cost
535 * Speed up tcmalloc by using __thread on systems that support TLS
536 * Total redesign of heap-checker to improve liveness checking
537 * More portable stack-frame analysis -- no more hard-coded constants!
538 * Disentangled heap-profiler code and heap-checker code
539 * Several new unittests to test, e.g., thread-contention costs
540 * Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64
541 *** KNOWN PROBLEMS:
542 * CPU-profiling may crash on x86_64 (64-bit) systems. See the README
543 * Profiling/heap-checking may deadlock on x86_64 systems. See README
545 Wed Jun 14 15:11:14 2006 Google Inc. <opensource@google.com>
547 * google-perftools: version 0.8 release
548 * Experimental support for remote profiling added to pprof (many)
549 * Fixed race condition in ProfileData::FlushTable (etune)
550 * Better support for weird /proc maps (maxim, mec)
551 * Fix heap-checker interaction with gdb (markus)
552 * Better 64-bit support in pprof (aruns)
553 * Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay)
554 * Cast syscall(SYS_mmap); works on more 64-bit systems now (menage)
555 * Document the text output of pprof! (csilvers)
556 * Better compiler support for no-THREADS and for old compilers (csilvers)
557 * Make libunwind the default stack unwinder for x86-64 (aruns)
558 * Somehow the COPYING file got erased. Regenerate it (csilvers)
560 Thu Apr 13 20:59:09 2006 Google Inc. <opensource@google.com>
562 * google-perftools: version 0.7 release
563 * Major rewrite of thread introspection for new kernels (markus)
564 * Major rewrite of heap-checker to use new thread tools (maxim)
565 * Add proper support for following data in thread registers (maxim)
566 * Syscall support for older kernels, including _syscall6 (markus)
567 * Support PIC mode (markus, mbland, iant)
568 * Better support for running in non-threaded contexts (csilvers)
570 Fri Jan 27 14:04:27 2006 Google Inc. <opensource@google.com>
572 * google-perftools: version 0.6 release
573 * More sophisticated stacktrace usage, possibly using libunwind (aruns)
574 * Update pprof to handle 64-bit profiles (dehnert)
575 * Fix GetStackTrace to correctly return top stackframe (sanjay)
576 * Add ANSI compliance for new and new[], including new_handler (jkearney)
577 * More accuracy by reading ELF files directly rather than objdump (mec)
578 * Add readline support for pprof (addi)
579 * Add #includes for PPC (csilvers)
580 * New PC-detection routine for ibook powerpc (asbestoshead)
581 * Vastly improved tcmalloc unittest (csilvers)
582 * Move documentation from /usr/doc to /usr/share/doc
584 Mon Nov 14 17:28:59 2005 Google Inc. <opensource@google.com>
586 * google-perftools: version 0.5 release
587 * Add va_start/va_end calls around vsnprintf() (csilvers)
588 * Write our own __syscall_return(), since it's not defined
589 consistently on all 64-bit linux distros (markus)
591 Wed Oct 26 15:19:16 2005 Google Inc. <opensource@google.com>
593 * google-perftools: version 0.4 release
594 * Decrease fragmentation in tcmalloc (lefevere)
595 * Support for ARM in some of the thread-specific code (markus)
596 * Turn off heap-checker for statically-linked binaries, which
597 cause error leak reports now (etune)
598 * Many pprof improvements, including a command-line interface (jeff)
599 * CPU profiling now automatically affects all threads in linux 2.6.
600 (Kernel bugs break CPU profiling and threads in linux 2.4 a bit.)
601 ProfilerEnable() and ProfilerDisable() are deprecated. (sanjay)
602 * tcmalloc now correctly intercepts memalign (m3b, maxim)
603 * Syntax fix: added missing va_end()s. Helps non-gcc compiling (etune)
604 * Fixed a few coredumper bugs: race condition after PTRACE_DETACH,
605 ignore non-aligned stackframe pointers (markus, menage)
606 * 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay)
607 * Better support for finding threads in linux (markus)
608 * tcmalloc now tracks those stack traces that allocate memory (sanjay)
609 * Work around a weird setspecific problem (sanjay)
610 * Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay)
612 Fri Jun 24 18:02:26 2005 Google Inc. <opensource@google.com>
614 * google-perftools: version 0.3 release
615 * Add missing errno include for one of the unittests (csilvers)
616 * Reduce tcmalloc startup memory from 5M to 256K (sanjay)
617 * Add support for mallopt() and mallinfo (sanjay)
618 * Improve stacktrace's performance on some 64-bit systems (etune)
619 * Improve the stacktrace unittest (etune)
621 Tue May 31 08:14:38 2005 Google Inc. <opensource@google.com>
623 * google-perftools: version 0.2 release
624 * Use mmap2() instead of mmap(), to map more memory (menage)
625 * Do correct pthread-local checking in heap-checker! (maxim)
626 * Avoid overflow on 64-bit machines in pprof (sanjay)
627 * Add a few more GetPC() functions, including for AMD (csilvers)
628 * Better method for overriding pthread functions (menage)
629 * (Hacky) fix to avoid overwriting profile files after fork() (csilvers)
630 * Crashing bugfix involving dumping heaps on small-stack threads (tudor)
631 * Allow library versions with letters at the end (csilvers)
632 * Config fixes for systems that don't define PATH_MAX (csilvers)
633 * Confix fixes so we no longer need config.h after install (csilvers)
634 * Fix to pprof to correctly read very big cpu profiles (csilvers)
635 * Fix to pprof to deal with new commandline flags in modern gv's
636 * Better error reporting when we can't access /proc/maps (etune)
637 * Get rid of the libc-preallocate code (which could crash on some
638 systems); no longer needed with local-threads fix (csilvers)
640 Tue Feb 8 09:57:17 2005 Google Inc. <opensource@google.com>
642 * google-perftools: initial release:
643 The google-perftools package contains some utilities to improve
644 and analyze the performance of C++ programs. This includes an
645 optimized thread-caching malloc() and cpu and heap profiling
646 utilities.