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Posted to commits@quickstep.apache.org by hb...@apache.org on 2017/01/19 20:07:17 UTC

[40/51] [abbrv] [partial] incubator-quickstep git commit: Added shell script to download prerequisite third party libs

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/b249eb11/third_party/gperftools/NEWS
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-== 10 Jan 2014 ==
-
-gperftools 2.4 is out! The code is exactly same as 2.4rc.
-
-== 28 Dec 2014 ==
-
-gperftools 2.4rc is out!
-
-Here are changes since 2.3:
-
-* enabled aggressive decommit option by default. It was found to
-  significantly improve memory fragmentation with negligible impact on
-  performance. (Thanks to investigation work performed by Adhemerval
-  Zanella)
-
-* added ./configure flags for tcmalloc pagesize and tcmalloc
-  allocation alignment. Larger page sizes have been reported to
-  improve performance occasionally. (Patch by Raphael Moreira Zinsly)
-
-* sped-up hot-path of malloc/free. By about 5% on static library and
-  about 10% on shared library. Mainly due to more efficient checking
-  of malloc hooks.
-
-* improved stacktrace capturing in cpu profiler (due to issue found by
-  Arun Sharma). As part of that issue pprof's handling of cpu profiles
-  was also improved.
-
-== 7 Dec 2014 ==
-
-gperftools 2.3 is out!
-
-Here are changes since 2.3rc:
-
-* (issue 658) correctly close socketpair fds on failure (patch by glider)
-
-* libunwind integration can be disabled at configure time (patch by
-  Raphael Moreira Zinsly)
-
-* libunwind integration is disabled by default for ppc64 (patch by
-  Raphael Moreira Zinsly)
-
-* libunwind integration is force-disabled for OSX. It was not used by
-  default anyways. Fixes compilation issue I saw.
-
-== 2 Nov 2014 ==
-
-gperftools 2.3rc is out!
-
-Most small improvements in this release were made to pprof tool.
-
-New experimental Linux-only (for now) cpu profiling mode is a notable
-big improvement.
-
-Here are notable changes since 2.2.1:
-
-* (issue-631) fixed debugallocation miscompilation on mmap-less
-  platforms (courtesy of user iamxujian)
-
-* (issue-630) reference to wrong PROFILE (vs. correct CPUPROFILE)
-  environment variable was fixed (courtesy of WenSheng He)
-
-* pprof now has option to display stack traces in output for heap
-  checker (courtesy of Michael Pasieka)
-
-* (issue-636) pprof web command now works on mingw
-
-* (issue-635) pprof now handles library paths that contain spaces
-  (courtesy of user mich...@sebesbefut.com)
-
-* (issue-637) pprof now has an option to not strip template arguments
-  (patch by jiakai)
-
-* (issue-644) possible out-of-bounds access in GetenvBeforeMain was
-  fixed (thanks to user abyss.7)
-
-* (issue-641) pprof now has an option --show_addresses (thanks to user
-  yurivict). New option prints instruction address in addition to
-  function name in stack traces
-
-* (issue-646) pprof now works around some issues of addr2line
-  reportedly when DWARF v4 format is used (patch by Adam McNeeney)
-
-* (issue-645) heap profiler exit message now includes remaining memory
-  allocated info (patch by user yurivict)
-
-* pprof code that finds location of /proc/<pid>/maps in cpu profile
-  files is now fixed (patch by Ricardo M. Correia)
-
-* (issue-654) pprof now handles "split text segments" feature of
-  Chromium for Android. (patch by simonb)
-
-* (issue-655) potential deadlock on windows caused by early call to
-  getenv in malloc initialization code was fixed (bug reported and fix
-  proposed by user zndmitry)
-
-* incorrect detection of arm 6zk instruction set support
-  (-mcpu=arm1176jzf-s) was fixed. (Reported by pedronavf on old
-  issue-493)
-
-* new cpu profiling mode on Linux is now implemented. It sets up
-  separate profiling timers for separate threads. Which improves
-  accuracy of profiling on Linux a lot. It is off by default. And is
-  enabled if both librt.f is loaded and CPUPROFILE_PER_THREAD_TIMERS
-  environment variable is set. But note that all threads need to be
-  registered via ProfilerRegisterThread.
-
-== 21 Jun 2014 ==
-
-gperftools 2.2.1 is out!
-
-Here's list of fixes:
-
-* issue-626 was closed. Which fixes initialization statically linked
-  tcmalloc.
-
-* issue 628 was closed. It adds missing header file into source
-  tarball. This fixes for compilation on PPC Linux.
-
-== 3 May 2014 ==
-
-gperftools 2.2 is out!
-
-Here are notable changes since 2.2rc:
-
-* issue 620 (crash on windows when c runtime dll is reloaded) was
-  fixed
-
-== 19 Apr 2014 ==
-
-gperftools 2.2rc is out!
-
-Here are notable changes since 2.1:
-
-* a number of fixes for a number compilers and platforms. Notably
-  Visual Studio 2013, recent mingw with c++ threads and some OSX
-  fixes.
-
-* we now have mips and mips64 support! (courtesy of Jovan Zelincevic,
-  Jean Lee, user xiaoyur347 and others)
-
-* we now have aarch64 (aka arm64) support! (contributed by Riku
-  Voipio)
-
-* there's now support for ppc64-le (by Raphael Moreira Zinsly and
-  Adhemerval Zanella)
-
-* there's now some support of uclibc (contributed by user xiaoyur347)
-
-* google/ headers will now give you deprecation warning. They are
-  deprecated since 2.0
-
-* there's now new api: tc_malloc_skip_new_handler (ported from chromium
-  fork)
-
-* issue-557: added support for dumping heap profile via signal (by
-  Jean Lee)
-
-* issue-567: Petr Hosek contributed SysAllocator support for windows
-
-* Joonsoo Kim contributed several speedups for central freelist code
-
-* TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES environment variable now works
-
-* configure scripts are now using AM_MAINTAINER_MODE. It'll only
-  affect folks who modify source from .tar.gz and want automake to
-  automatically rebuild Makefile-s. See automake documentation for
-  that.
-
-* issue-586: detect main executable even if PIE is active (based on
-  patch by user themastermind1). Notably, it fixes profiler use with
-  ruby.
-
-* there is now support for switching backtrace capturing method at
-  runtime (via TCMALLOC_STACKTRACE_METHOD and
-  TCMALLOC_STACKTRACE_METHOD_VERBOSE environment variables)
-
-* there is new backtrace capturing method using -finstrument-functions
-  prologues contributed by user xiaoyur347
-
-* few cases of crashes/deadlocks in profiler were addressed. See
-  (famous) issue-66, issue-547 and issue-579.
-
-* issue-464 (memory corruption in debugalloc's realloc after
-  memallign) is now fixed
-
-* tcmalloc is now able to release memory back to OS on windows
-  (issue-489). The code was ported from chromium fork (by a number of
-  authors).
-
-* Together with issue-489 we ported chromium's "aggressive decommit"
-  mode. In this mode (settable via malloc extension and via
-  environment variable TCMALLOC_AGGRESSIVE_DECOMMIT), free pages are
-  returned back to OS immediately.
-
-* MallocExtension::instance() is now faster (based on patch by
-  Adhemerval Zanella)
-
-* issue-610 (hangs on windows in multibyte locales) is now fixed
-
-The following people helped with ideas or patches (based on git log,
-some contributions purely in bugtracker might be missing): Andrew
-C. Morrow, yurivict, Wang YanQing, Thomas Klausner,
-davide.italiano@10gen.com, Dai MIKURUBE, Joon-Sung Um, Jovan
-Zelincevic, Jean Lee, Petr Hosek, Ben Avison, drussel, Joonsoo Kim,
-Hannes Weisbach, xiaoyur347, Riku Voipio, Adhemerval Zanella, Raphael
-Moreira Zinsly
-
-== 30 July 2013 ==
-
-gperftools 2.1 is out!
-
-Just few fixes where merged after rc. Most notably:
-
-* Some fixes for debug allocation on POWER/Linux
-
-== 20 July 2013 ==
-
-gperftools 2.1rc is out!
-
-As a result of more than a year of contributions we're ready for 2.1
-release.
-
-But before making that step I'd like to create RC and make sure people
-have chance to test it.
-
-Here are notable changes since 2.0:
-
-* fixes for building on newer platforms. Notably, there's now initial
-  support for x32 ABI (--enable-minimal only at this time))
-
-* new getNumericProperty stats for cache sizes
-
-* added HEAP_PROFILER_TIME_INTERVAL variable (see documentation)
-
-* added environment variable to control heap size (TCMALLOC_HEAP_LIMIT_MB)
-
-* added environment variable to disable release of memory back to OS
-  (TCMALLOC_DISABLE_MEMORY_RELEASE)
-
-* cpu profiler can now be switched on and off by sending it a signal
-  (specified in CPUPROFILESIGNAL)
-
-* (issue 491) fixed race-ful spinlock wake-ups
-
-* (issue 496) added some support for fork-ing of process that is using
-  tcmalloc
-
-* (issue 368) improved memory fragmentation when large chunks of
-  memory are allocated/freed
-
-== 03 February 2012 ==
-
-I've just released gperftools 2.0
-
-The `google-perftools` project has been renamed to `gperftools`.  I
-(csilvers) am stepping down as maintainer, to be replaced by
-David Chappelle.  Welcome to the team, David!  David has been an
-an active contributor to perftools in the past -- in fact, he's the
-only person other than me that already has commit status.  I am
-pleased to have him take over as maintainer.
-
-I have both renamed the project (the Google Code site renamed a few
-weeks ago), and bumped the major version number up to 2, to reflect
-the new community ownership of the project.  Almost all the
-[http://gperftools.googlecode.com/svn/tags/gperftools-2.0/ChangeLog changes]
-are related to the renaming.
-
-The main functional change from google-perftools 1.10 is that
-I've renamed the `google/` include-directory to be `gperftools/`
-instead.  New code should `#include <gperftools/tcmalloc.h>`/etc.
-(Most users of perftools don't need any perftools-specific includes at
-all, so this is mostly directed to "power users.")  I've kept the old
-names around as forwarding headers to the new, so `#include
-<google/tcmalloc.h>` will continue to work.
-
-(The other functional change which I snuck in is getting rid of some
-bash-isms in one of the unittest driver scripts, so it could run on
-Solaris.)
-
-Note that some internal names still contain the text `google`, such as
-the `google_malloc` internal linker section.  I think that's a
-trickier transition, and can happen in a future release (if at all).
-
-
-=== 31 January 2012 ===
-
-I've just released perftools 1.10
-
-There is an API-incompatible change: several of the methods in the
-`MallocExtension` class have changed from taking a `void*` to taking a
-`const void*`.  You should not be affected by this API change
-unless you've written your own custom malloc extension that derives
-from `MallocExtension`, but since it is a user-visible change, I have
-upped the `.so` version number for this release.
-
-This release focuses on improvements to linux-syscall-support.h,
-including ARM and PPC fixups and general cleanups.  I hope this will
-magically fix an array of bugs people have been seeing.
-
-There is also exciting news on the porting front, with support for
-patching win64 assembly contributed by IBM Canada!  This is an
-important step -- perhaps the most difficult -- to getting perftools
-to work on 64-bit windows using the patching technique (it doesn't
-affect the libc-modification technique).  `premable_patcher_test` has
-been added to help test these changes; it is meant to compile under
-x86_64, and won't work under win32.
-
-For the full list of changes, including improved `HEAP_PROFILE_MMAP`
-support, see the
-[http://gperftools.googlecode.com/svn/tags/google-perftools-1.10/ChangeLog ChangeLog].
-
-
-=== 24 January 2011 ===
-
-The `google-perftools` Google Code page has been renamed to
-`gperftools`, in preparation for the project being renamed to
-`gperftools`.  In the coming weeks, I'll be stepping down as
-maintainer for the perftools project, and as part of that Google is
-relinquishing ownership of the project; it will now be entirely
-community run.  The name change reflects that shift.  The 'g' in
-'gperftools' stands for 'great'. :-)
-
-=== 23 December 2011 ===
-
-I've just released perftools 1.9.1
-
-I missed including a file in the tarball, that is needed to compile on
-ARM.  If you are not compiling on ARM, or have successfully compiled
-perftools 1.9, there is no need to upgrade.
-
-
-=== 22 December 2011 ===
-
-I've just released perftools 1.9
-
-This change has a slew of improvements, from better ARM and freebsd
-support, to improved performance by moving some code outside of locks,
-to better pprof reporting of code with overloaded functions.
-
-The full list of changes is in the
-[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.9/ChangeLog ChangeLog].
-
-
-=== 26 August 2011 ===
-
-I've just released perftools 1.8.3
-
-The star-crossed 1.8 series continues; in 1.8.1, I had accidentally
-removed some code that was needed for FreeBSD.  (Without this code
-many apps would crash at startup.)  This release re-adds that code.
-If you are not on FreeBSD, or are using FreeBSD with perftools 1.8 or
-earlier, there is no need to upgrade.
-
-=== 11 August 2011 ===
-
-I've just released perftools 1.8.2
-
-I was incorrectly calculating the patch-level in the configuration
-step, meaning the TC_VERSION_PATCH #define in tcmalloc.h was wrong.
-Since the testing framework checks for this, it was failing.  Now it
-should work again.  This time, I was careful to re-run my tests after
-upping the version number. :-)
-
-If you don't care about the TC_VERSION_PATCH #define, there's no
-reason to upgrae.
-
-=== 26 July 2011 ===
-
-I've just released perftools 1.8.1
-
-I was missing an #include that caused the build to break under some
-compilers, especially newer gcc's, that wanted it.  This only affects
-people who build from source, so only the .tar.gz file is updated from
-perftools 1.8.  If you didn't have any problems compiling perftools
-1.8, there's no reason to upgrade.
-
-=== 15 July 2011 ===
-
-I've just released perftools 1.8
-
-Of the many changes in this release, a good number pertain to porting.
-I've revamped OS X support to use the malloc-zone framework; it should
-now Just Work to link in tcmalloc, without needing
-`DYLD_FORCE_FLAT_NAMESPACE` or the like.  (This is a pretty major
-change, so please feel free to report feedback at
-google-perftools@googlegroups.com.)  64-bit Windows support is also
-improved, as is ARM support, and the hooks are in place to improve
-FreeBSD support as well.
-
-On the other hand, I'm seeing hanging tests on Cygwin.  I see the same
-hanging even with (the old) perftools 1.7, so I'm guessing this is
-either a problem specific to my Cygwin installation, or nobody is
-trying to use perftools under Cygwin.  If you can reproduce the
-problem, and even better have a solution, you can report it at
-google-perftools@googlegroups.com.
-
-Internal changes include several performance and space-saving tweaks.
-One is user-visible (but in "stealth mode", and otherwise
-undocumented): you can compile with `-DTCMALLOC_SMALL_BUT_SLOW`.  In
-this mode, tcmalloc will use less memory overhead, at the cost of
-running (likely not noticeably) slower.
-
-There are many other changes as well, too numerous to recount here,
-but present in the
-[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.8/ChangeLog ChangeLog].
-
-
-=== 7 February 2011 ===
-
-Thanks to endlessr..., who
-[http://code.google.com/p/google-perftools/issues/detail?id=307 identified]
-why some tests were failing under MSVC 10 in release mode.  It does not look
-like these failures point toward any problem with tcmalloc itself; rather, the
-problem is with the test, which made some assumptions that broke under the
-some aggressive optimizations used in MSVC 10.  I'll fix the test, but in
-the meantime, feel free to use perftools even when compiled under MSVC
-10.
-
-=== 4 February 2011 ===
-
-I've just released perftools 1.7
-
-I apologize for the delay since the last release; so many great new
-patches and bugfixes kept coming in (and are still coming in; I also
-apologize to those folks who have to slip until the next release).  I
-picked this arbitrary time to make a cut.
-
-Among the many new features in this release is a multi-megabyte
-reduction in the amount of tcmalloc overhead uder x86_64, improved
-performance in the case of contention, and many many bugfixes,
-especially architecture-specific bugfixes.  See the
-[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.7/ChangeLog ChangeLog]
-for full details.
-
-One architecture-specific change of note is added comments in the
-[http://google-perftools.googlecode.com/svn/tags/perftools-1.7/README README]
-for using tcmalloc under OS X.  I'm trying to get my head around the
-exact behavior of the OS X linker, and hope to have more improvements
-for the next release, but I hope these notes help folks who have been
-having trouble with tcmalloc on OS X.
-
-*Windows users*: I've heard reports that some unittests fail on
-Windows when compiled with MSVC 10 in Release mode.  All tests pass in
-Debug mode.  I've not heard of any problems with earlier versions of
-MSVC.  I don't know if this is a problem with the runtime patching (so
-the static patching discussed in README_windows.txt will still work),
-a problem with perftools more generally, or a bug in MSVC 10.  Anyone
-with windows expertise that can debug this, I'd be glad to hear from!
-
-
-=== 5 August 2010 ===
-
-I've just released perftools 1.6
-
-This version also has a large number of minor changes, including
-support for `malloc_usable_size()` as a glibc-compatible alias to
-`malloc_size()`, the addition of SVG-based output to `pprof`, and
-experimental support for tcmalloc large pages, which may speed up
-tcmalloc at the cost of greater memory use.  To use tcmalloc large
-pages, see the
-[http://google-perftools.googlecode.com/svn/tags/perftools-1.6/INSTALL
-INSTALL file]; for all changes, see the
-[http://google-perftools.googlecode.com/svn/tags/perftools-1.6/ChangeLog
-ChangeLog].
-
-OS X NOTE: improvements in the profiler unittest have turned up an OS
-X issue: in multithreaded programs, it seems that OS X often delivers
-the profiling signal (from sigitimer()) to the main thread, even when
-it's sleeping, rather than spawned threads that are doing actual work.
-If anyone knows details of how OS X handles SIGPROF events (from
-setitimer) in threaded programs, and has insight into this problem,
-please send mail to google-perftools@googlegroups.com.
-
-To see if you're affected by this, look for profiling time that pprof
-attributes to `___semwait_signal`.  This is work being done in other
-threads, that is being attributed to sleeping-time in the main thread.
-
-
-=== 20 January 2010 ===
-
-I've just released perftools 1.5
-
-This version has a slew of changes, leading to somewhat faster
-performance and improvements in portability.  It adds features like
-`ITIMER_REAL` support to the cpu profiler, and `tc_set_new_mode` to
-mimic the windows function of the same name.  Full details are in the
-[http://google-perftools.googlecode.com/svn/tags/perftools-1.5/ChangeLog
-ChangeLog].
-
-
-=== 11 September 2009 ===
-
-I've just released perftools 1.4
-
-The major change this release is the addition of a debugging malloc
-library!  If you link with `libtcmalloc_debug.so` instead of
-`libtcmalloc.so` (and likewise for the `minimal` variants) you'll get
-a debugging malloc, which will catch double-frees, writes to freed
-data, `free`/`delete` and `delete`/`delete[]` mismatches, and even
-(optionally) writes past the end of an allocated block.
-
-We plan to do more with this library in the future, including
-supporting it on Windows, and adding the ability to use the debugging
-library with your default malloc in addition to using it with
-tcmalloc.
-
-There are also the usual complement of bug fixes, documented in the
-ChangeLog, and a few minor user-tunable knobs added to components like
-the system allocator.
-
-
-=== 9 June 2009 ===
-
-I've just released perftools 1.3
-
-Like 1.2, this has a variety of bug fixes, especially related to the
-Windows build.  One of my bugfixes is to undo the weird `ld -r` fix to
-`.a` files that I introduced in perftools 1.2: it caused problems on
-too many platforms.  I've reverted back to normal `.a` files.  To work
-around the original problem that prompted the `ld -r` fix, I now
-provide `libtcmalloc_and_profiler.a`, for folks who want to link in
-both.
-
-The most interesting API change is that I now not only override
-`malloc`/`free`/etc, I also expose them via a unique set of symbols:
-`tc_malloc`/`tc_free`/etc.  This enables clients to write their own
-memory wrappers that use tcmalloc:
-{{{
-   void* malloc(size_t size) { void* r = tc_malloc(size); Log(r); return r; }
-}}}
-
-
-=== 17 April 2009 ===
-
-I've just released perftools 1.2.
-
-This is mostly a bugfix release.  The major change is internal: I have
-a new system for creating packages, which allows me to create 64-bit
-packages.  (I still don't do that for perftools, because there is
-still no great 64-bit solution, with libunwind still giving problems
-and --disable-frame-pointers not practical in every environment.)
-
-Another interesting change involves Windows: a
-[http://code.google.com/p/google-perftools/issues/detail?id=126 new
-patch] allows users to choose to override malloc/free/etc on Windows
-rather than patching, as is done now.  This can be used to create
-custom CRTs.
-
-My fix for this
-[http://groups.google.com/group/google-perftools/browse_thread/thread/1ff9b50043090d9d/a59210c4206f2060?lnk=gst&q=dynamic#a59210c4206f2060
-bug involving static linking] ended up being to make libtcmalloc.a and
-libperftools.a a big .o file, rather than a true `ar` archive.  This
-should not yield any problems in practice -- in fact, it should be
-better, since the heap profiler, leak checker, and cpu profiler will
-now all work even with the static libraries -- but if you find it
-does, please file a bug report.
-
-Finally, the profile_handler_unittest provided in the perftools
-testsuite (new in this release) is failing on FreeBSD.  The end-to-end
-test that uses the profile-handler is passing, so I suspect the
-problem may be with the test, not the perftools code itself.  However,
-I do not know enough about how itimers work on FreeBSD to be able to
-debug it.  If you can figure it out, please let me know!
-
-=== 11 March 2009 ===
-
-I've just released perftools 1.1!
-
-It has many changes since perftools 1.0 including
-
-  * Faster performance due to dynamically sized thread caches
-  * Better heap-sampling for more realistic profiles
-  * Improved support on Windows (MSVC 7.1 and cygwin)
-  * Better stacktraces in linux (using VDSO)
-  * Many bug fixes and feature requests
-
-Note: if you use the CPU-profiler with applications that fork without
-doing an exec right afterwards, please see the README.  Recent testing
-has shown that profiles are unreliable in that case.  The problem has
-existed since the first release of perftools.  We expect to have a fix
-for perftools 1.2.  For more details, see
-[http://code.google.com/p/google-perftools/issues/detail?id=105 issue 105].
-
-Everyone who uses perftools 1.0 is encouraged to upgrade to perftools
-1.1.  If you see any problems with the new release, please file a bug
-report at http://code.google.com/p/google-perftools/issues/list.
-
-Enjoy!

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/b249eb11/third_party/gperftools/README
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diff --git a/third_party/gperftools/README b/third_party/gperftools/README
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@@ -1,265 +0,0 @@
-IMPORTANT NOTE FOR 64-BIT USERS
--------------------------------
-There are known issues with some perftools functionality on x86_64
-systems.  See 64-BIT ISSUES, below.
-
-
-TCMALLOC
---------
-Just link in -ltcmalloc or -ltcmalloc_minimal to get the advantages of
-tcmalloc -- a replacement for malloc and new.  See below for some
-environment variables you can use with tcmalloc, as well.
-
-tcmalloc functionality is available on all systems we've tested; see
-INSTALL for more details.  See README_windows.txt for instructions on
-using tcmalloc on Windows.
-
-NOTE: When compiling with programs with gcc, that you plan to link
-with libtcmalloc, it's safest to pass in the flags
-
- -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
-
-when compiling.  gcc makes some optimizations assuming it is using its
-own, built-in malloc; that assumption obviously isn't true with
-tcmalloc.  In practice, we haven't seen any problems with this, but
-the expected risk is highest for users who register their own malloc
-hooks with tcmalloc (using gperftools/malloc_hook.h).  The risk is
-lowest for folks who use tcmalloc_minimal (or, of course, who pass in
-the above flags :-) ).
-
-
-HEAP PROFILER
--------------
-See doc/heap-profiler.html for information about how to use tcmalloc's
-heap profiler and analyze its output.
-
-As a quick-start, do the following after installing this package:
-
-1) Link your executable with -ltcmalloc
-2) Run your executable with the HEAPPROFILE environment var set:
-     $ HEAPPROFILE=/tmp/heapprof <path/to/binary> [binary args]
-3) Run pprof to analyze the heap usage
-     $ pprof <path/to/binary> /tmp/heapprof.0045.heap  # run 'ls' to see options
-     $ pprof --gv <path/to/binary> /tmp/heapprof.0045.heap
-
-You can also use LD_PRELOAD to heap-profile an executable that you
-didn't compile.
-
-There are other environment variables, besides HEAPPROFILE, you can
-set to adjust the heap-profiler behavior; c.f. "ENVIRONMENT VARIABLES"
-below.
-
-The heap profiler is available on all unix-based systems we've tested;
-see INSTALL for more details.  It is not currently available on Windows.
-
-
-HEAP CHECKER
-------------
-See doc/heap-checker.html for information about how to use tcmalloc's
-heap checker.
-
-In order to catch all heap leaks, tcmalloc must be linked *last* into
-your executable.  The heap checker may mischaracterize some memory
-accesses in libraries listed after it on the link line.  For instance,
-it may report these libraries as leaking memory when they're not.
-(See the source code for more details.)
-
-Here's a quick-start for how to use:
-
-As a quick-start, do the following after installing this package:
-
-1) Link your executable with -ltcmalloc
-2) Run your executable with the HEAPCHECK environment var set:
-     $ HEAPCHECK=1 <path/to/binary> [binary args]
-
-Other values for HEAPCHECK: normal (equivalent to "1"), strict, draconian
-
-You can also use LD_PRELOAD to heap-check an executable that you
-didn't compile.
-
-The heap checker is only available on Linux at this time; see INSTALL
-for more details.
-
-
-CPU PROFILER
-------------
-See doc/cpu-profiler.html for information about how to use the CPU
-profiler and analyze its output.
-
-As a quick-start, do the following after installing this package:
-
-1) Link your executable with -lprofiler
-2) Run your executable with the CPUPROFILE environment var set:
-     $ CPUPROFILE=/tmp/prof.out <path/to/binary> [binary args]
-3) Run pprof to analyze the CPU usage
-     $ pprof <path/to/binary> /tmp/prof.out      # -pg-like text output
-     $ pprof --gv <path/to/binary> /tmp/prof.out # really cool graphical output
-
-There are other environment variables, besides CPUPROFILE, you can set
-to adjust the cpu-profiler behavior; cf "ENVIRONMENT VARIABLES" below.
-
-The CPU profiler is available on all unix-based systems we've tested;
-see INSTALL for more details.  It is not currently available on Windows.
-
-NOTE: CPU profiling doesn't work after fork (unless you immediately
-      do an exec()-like call afterwards).  Furthermore, if you do
-      fork, and the child calls exit(), it may corrupt the profile
-      data.  You can use _exit() to work around this.  We hope to have
-      a fix for both problems in the next release of perftools
-      (hopefully perftools 1.2).
-
-
-EVERYTHING IN ONE
------------------
-If you want the CPU profiler, heap profiler, and heap leak-checker to
-all be available for your application, you can do:
-   gcc -o myapp ... -lprofiler -ltcmalloc
-
-However, if you have a reason to use the static versions of the
-library, this two-library linking won't work:
-   gcc -o myapp ... /usr/lib/libprofiler.a /usr/lib/libtcmalloc.a  # errors!
-
-Instead, use the special libtcmalloc_and_profiler library, which we
-make for just this purpose:
-   gcc -o myapp ... /usr/lib/libtcmalloc_and_profiler.a
-
-
-CONFIGURATION OPTIONS
----------------------
-For advanced users, there are several flags you can pass to
-'./configure' that tweak tcmalloc performace.  (These are in addition
-to the environment variables you can set at runtime to affect
-tcmalloc, described below.)  See the INSTALL file for details.
-
-
-ENVIRONMENT VARIABLES
----------------------
-The cpu profiler, heap checker, and heap profiler will lie dormant,
-using no memory or CPU, until you turn them on.  (Thus, there's no
-harm in linking -lprofiler into every application, and also -ltcmalloc
-assuming you're ok using the non-libc malloc library.)
-
-The easiest way to turn them on is by setting the appropriate
-environment variables.  We have several variables that let you
-enable/disable features as well as tweak parameters.
-
-Here are some of the most important variables:
-
-HEAPPROFILE=<pre> -- turns on heap profiling and dumps data using this prefix
-HEAPCHECK=<type>  -- turns on heap checking with strictness 'type'
-CPUPROFILE=<file> -- turns on cpu profiling and dumps data to this file.
-PROFILESELECTED=1 -- if set, cpu-profiler will only profile regions of code
-                     surrounded with ProfilerEnable()/ProfilerDisable().
-CPUPROFILE_FREQUENCY=x-- how many interrupts/second the cpu-profiler samples.
-
-TCMALLOC_DEBUG=<level> -- the higher level, the more messages malloc emits
-MALLOCSTATS=<level>    -- prints memory-use stats at program-exit
-
-For a full list of variables, see the documentation pages:
-   doc/cpuprofile.html
-   doc/heapprofile.html
-   doc/heap_checker.html
-
-
-COMPILING ON NON-LINUX SYSTEMS
-------------------------------
-
-Perftools was developed and tested on x86 Linux systems, and it works
-in its full generality only on those systems.  However, we've
-successfully ported much of the tcmalloc library to FreeBSD, Solaris
-x86, and Darwin (Mac OS X) x86 and ppc; and we've ported the basic
-functionality in tcmalloc_minimal to Windows.  See INSTALL for details.
-See README_windows.txt for details on the Windows port.
-
-
-PERFORMANCE
------------
-
-If you're interested in some third-party comparisons of tcmalloc to
-other malloc libraries, here are a few web pages that have been
-brought to our attention.  The first discusses the effect of using
-various malloc libraries on OpenLDAP.  The second compares tcmalloc to
-win32's malloc.
-  http://www.highlandsun.com/hyc/malloc/
-  http://gaiacrtn.free.fr/articles/win32perftools.html
-
-It's possible to build tcmalloc in a way that trades off faster
-performance (particularly for deletes) at the cost of more memory
-fragmentation (that is, more unusable memory on your system).  See the
-INSTALL file for details.
-
-
-OLD SYSTEM ISSUES
------------------
-
-When compiling perftools on some old systems, like RedHat 8, you may
-get an error like this:
-    ___tls_get_addr: symbol not found
-
-This means that you have a system where some parts are updated enough
-to support Thread Local Storage, but others are not.  The perftools
-configure script can't always detect this kind of case, leading to
-that error.  To fix it, just comment out (or delete) the line
-   #define HAVE_TLS 1
-in your config.h file before building.
-
-
-64-BIT ISSUES
--------------
-
-There are two issues that can cause program hangs or crashes on x86_64
-64-bit systems, which use the libunwind library to get stack-traces.
-Neither issue should affect the core tcmalloc library; they both
-affect the perftools tools such as cpu-profiler, heap-checker, and
-heap-profiler.
-
-1) Some libc's -- at least glibc 2.4 on x86_64 -- have a bug where the
-libc function dl_iterate_phdr() acquires its locks in the wrong
-order.  This bug should not affect tcmalloc, but may cause occasional
-deadlock with the cpu-profiler, heap-profiler, and heap-checker.
-Its likeliness increases the more dlopen() commands an executable has.
-Most executables don't have any, though several library routines like
-getgrgid() call dlopen() behind the scenes.
-
-2) On x86-64 64-bit systems, while tcmalloc itself works fine, the
-cpu-profiler tool is unreliable: it will sometimes work, but sometimes
-cause a segfault.  I'll explain the problem first, and then some
-workarounds.
-
-Note that this only affects the cpu-profiler, which is a
-gperftools feature you must turn on manually by setting the
-CPUPROFILE environment variable.  If you do not turn on cpu-profiling,
-you shouldn't see any crashes due to perftools.
-
-The gory details: The underlying problem is in the backtrace()
-function, which is a built-in function in libc.
-Backtracing is fairly straightforward in the normal case, but can run
-into problems when having to backtrace across a signal frame.
-Unfortunately, the cpu-profiler uses signals in order to register a
-profiling event, so every backtrace that the profiler does crosses a
-signal frame.
-
-In our experience, the only time there is trouble is when the signal
-fires in the middle of pthread_mutex_lock.  pthread_mutex_lock is
-called quite a bit from system libraries, particularly at program
-startup and when creating a new thread.
-
-The solution: The dwarf debugging format has support for 'cfi
-annotations', which make it easy to recognize a signal frame.  Some OS
-distributions, such as Fedora and gentoo 2007.0, already have added
-cfi annotations to their libc.  A future version of libunwind should
-recognize these annotations; these systems should not see any
-crashses.
-
-Workarounds: If you see problems with crashes when running the
-cpu-profiler, consider inserting ProfilerStart()/ProfilerStop() into
-your code, rather than setting CPUPROFILE.  This will profile only
-those sections of the codebase.  Though we haven't done much testing,
-in theory this should reduce the chance of crashes by limiting the
-signal generation to only a small part of the codebase.  Ideally, you
-would not use ProfilerStart()/ProfilerStop() around code that spawns
-new threads, or is otherwise likely to cause a call to
-pthread_mutex_lock!
-
----
-17 May 2011

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/b249eb11/third_party/gperftools/README_windows.txt
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---- COMPILING
-
-This project has begun being ported to Windows.  A working solution
-file exists in this directory:
-    gperftools.sln
-
-You can load this solution file into VC++ 7.1 (Visual Studio 2003) or
-later -- in the latter case, it will automatically convert the files
-to the latest format for you.
-
-When you build the solution, it will create a number of unittests,
-which you can run by hand (or, more easily, under the Visual Studio
-debugger) to make sure everything is working properly on your system.
-The binaries will end up in a directory called "debug" or "release" in
-the top-level directory (next to the .sln file).  It will also create
-two binaries, nm-pdb and addr2line-pdb, which you should install in
-the same directory you install the 'pprof' perl script.
-
-I don't know very much about how to install DLLs on Windows, so you'll
-have to figure out that part for yourself.  If you choose to just
-re-use the existing .sln, make sure you set the IncludeDir's
-appropriately!  Look at the properties for libtcmalloc_minimal.dll.
-
-Note that these systems are set to build in Debug mode by default.
-You may want to change them to Release mode.
-
-To use tcmalloc_minimal in your own projects, you should only need to
-build the dll and install it someplace, so you can link it into
-further binaries.  To use the dll, you need to add the following to
-the linker line of your executable:
-   "libtcmalloc_minimal.lib" /INCLUDE:"__tcmalloc" 
-
-Here is how to accomplish this in Visual Studio 2005 (VC8):
-
-1) Have your executable depend on the tcmalloc library by selecting
-   "Project Dependencies..." from the "Project" menu.  Your executable
-   should depend on "libtcmalloc_minimal".
-
-2) Have your executable depend on a tcmalloc symbol -- this is
-   necessary so the linker doesn't "optimize out" the libtcmalloc
-   dependency -- by right-clicking on your executable's project (in
-   the solution explorer), selecting Properties from the pull-down
-   menu, then selecting "Configuration Properties" -> "Linker" ->
-   "Input".  Then, in the "Force Symbol References" field, enter the
-   text "__tcmalloc" (without the quotes).  Be sure to do this for both
-   debug and release modes!
-
-You can also link tcmalloc code in statically -- see the example
-project tcmalloc_minimal_unittest-static, which does this.  For this
-to work, you'll need to add "/D PERFTOOLS_DLL_DECL=" to the compile
-line of every perftools .cc file.  You do not need to depend on the
-tcmalloc symbol in this case (that is, you don't need to do either
-step 1 or step 2 from above).
-
-An alternative to all the above is to statically link your application
-with libc, and then replace its malloc with tcmalloc.  This allows you
-to just build and link your program normally; the tcmalloc support
-comes in a post-processing step.  This is more reliable than the above
-technique (which depends on run-time patching, which is inherently
-fragile), though more work to set up.  For details, see
-   https://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b
-
-
---- THE HEAP-PROFILER
-
-The heap-profiler has had a preliminary port to Windows.  It has not
-been well tested, and probably does not work at all when Frame Pointer
-Optimization (FPO) is enabled -- that is, in release mode.  The other
-features of perftools, such as the cpu-profiler and leak-checker, have
-not yet been ported to Windows at all.
-
-
---- WIN64
-
-The function-patcher has to disassemble code, and is very
-x86-specific.  However, the rest of perftools should work fine for
-both x86 and x64.  In particular, if you use the 'statically link with
-libc, and replace its malloc with tcmalloc' approach, mentioned above,
-it should be possible to use tcmalloc with 64-bit windows.
-
-As of perftools 1.10, there is some support for disassembling x86_64
-instructions, for work with win64.  This work is preliminary, but the
-test file preamble_patcher_test.cc is provided to play around with
-that a bit.  preamble_patcher_test will not compile on win32.
-
-
---- ISSUES
-
-NOTE FOR WIN2K USERS: According to reports
-(http://code.google.com/p/gperftools/issues/detail?id=127)
-the stack-tracing necessary for the heap-profiler does not work on
-Win2K.  The best workaround is, if you are building on a Win2k system
-is to add "/D NO_TCMALLOC_SAMPLES=" to your build, to turn off the
-stack-tracing.  You will not be able to use the heap-profiler if you
-do this.
-
-NOTE ON _MSIZE and _RECALLOC: The tcmalloc version of _msize returns
-the size of the region tcmalloc allocated for you -- which is at least
-as many bytes you asked for, but may be more.  (btw, these *are* bytes
-you own, even if you didn't ask for all of them, so it's correct code
-to access all of them if you want.)  Unfortunately, the Windows CRT
-_recalloc() routine assumes that _msize returns exactly as many bytes
-as were requested.  As a result, _recalloc() may not zero out new
-bytes correctly.  IT'S SAFEST NOT TO USE _RECALLOC WITH TCMALLOC.
-_recalloc() is a tricky routine to use in any case (it's not safe to
-use with realloc, for instance).
-
-
-I have little experience with Windows programming, so there may be
-better ways to set this up than I've done!  If you run across any
-problems, please post to the google-perftools Google Group, or report
-them on the gperftools Google Code site:
-   http://groups.google.com/group/google-perftools
-   http://code.google.com/p/gperftools/issues/list
-
--- craig
-
-Last modified: 2 February 2012

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/b249eb11/third_party/gperftools/TODO
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-HEAP PROFILER
-
-1) Fix heap profiling under all STLs
-   * Find out how to force non-glibc STL libraries to call new() and
-     delete() for every allocation / deallocation.
-   * Make heap profiler ignore STL-internal allocations for those
-     libraries under which we cannot profile accurately, so we only
-     see object-level leaks.
-2) Remove dependency on tcmalloc?
-3) Port to non-linux O/Ses (right now code uses /proc for library info)
-4) Port to non-x86 architectures (locking code in spinlock is x86-specific)
-5) Port to C?
-6) Figure out how to get setenv() to work properly before main() in
-   shared libaries, and get rid of the profile-naming hack once we
-   do.  (See HeapProfiler::Init().)
-
-
-HEAP CHECKER
-
-1) Remove requirement that the heap-checker must be linked last into
-   an application (hard! -- it needs its global constructor to run
-   first)
-
-TCMALLOC
-
-1) Implement mallinfo/mallopt
-2) Have tcmalloc work correctly when libpthread is not linked in
-   (currently working for glibc, could use other libc's too)
-3) Return memory to the system when requirements drop
-4) Explore coloring allocated objects to avoid cache conflicts
-5) Explore biasing reclamation to larger addresses
-6) Add contention stats to a synchronization.cc (can do spinlocks,
-   but threads? -- may have to provide our own thread implementation)
-
-CPU PROFILER
-
-1) Figure out how to get setenv() to work properly before main() in
-   shared libaries(), and get rid of the profile-naming hack once we
-   do.  (See Profiler::GetUniquePathFromEnv().)
-2) Resolve crashing problems on x86_64 (see README)
-
-STACKTRACE
-
-1) Remove dependency on linux/x86
-
----
-11 March 2008

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