CPUPROFILESIGNAL - Takes a signal number between the value of 1 and 64 inclusive which represents a signal
number as defined by signal.h. The signal must not be in use by the program. Sending this
signal to the program turns profiling on and off like a switch. By default the switch is
off when the program starts. Successive profiles are suffixed with a monotonically increasing
number.
git-svn-id: http://gperftools.googlecode.com/svn/trunk@182 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
* gperftools: version 2.0
* Renamed the project from google-perftools to gperftools (csilvers)
* Renamed the .deb/.rpm packagse from google-perftools to gperftools too
* Renamed include directory from google/ to gperftools/ (csilvers)
* Changed the 'official' perftools email in setup.py/etc
* Renamed google-perftools.sln to gperftools.sln
* PORTING: Removed bash-isms & grep -q in heap-checker-death_unittest.sh
* Changed copyright text to reflect Google's relinquished ownership
git-svn-id: http://gperftools.googlecode.com/svn/trunk@142 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
* PORTING: Work around atexit-execution-order bug on freebsd (csilvers)
* PORTING: Patch _calloc_crt for windows (roger orr)
* PORTING: Add C++11 compatibility method for stl allocator (jdennett)
* PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd (csilvers)
* PORTING: Don't use SYS_open when not supported on solaris (csilvers)
* PORTING: Do not assume uname() returns 0 on success (csilvers)
* LSS: Improved ARM support in linux-syscall-support (dougkwan)
* LSS: Get rid of unused syscalls in linux-syscall-support (csilvers)
* LSS: Fix broken mmap wrapping for ppc (markus)
* LSS: Emit .cfi_adjust_cfa_offset when appropriate (ppluzhnikov)
* LSS: Be more accurate in register use in __asm__ (markus)
* LSS: Fix __asm__ calls to compile under clang (chandlerc)
* LSS: Fix ARM inline assembly bug around r7 and swi (lcwu)
* No longer log when an allocator fails (csilvers)
* void* -> const void* for MallocExtension methods (llib)
* Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube)
* Replace int-based abs with more correct fabs in a test (pmurin)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@134 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
* 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
* 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
* 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
* google-perftools: version 0.96 release
* major atomicops rewrite; fixed atomic ops code for linux/ppc (vchen)
* nix the stacktrace library; now build structure is simpler (csilvers)
* Speed up heap-checker, and reduce extraneous logging (maxim)
* Improve itimer code for NPTL case (cgd)
* Add source code annotations for use by valgrind, etc (kcc)
* PORTING: Fix high resolution timers for Mac OS X (adlr)
git-svn-id: http://gperftools.googlecode.com/svn/trunk@48 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
* 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
* 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
* 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
chappedm@gmail.com
csilvers