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Tue May 31 08:14:38 2005 Google Inc. <opensource@google.com> * google-perftools: version 0.2 release * Use mmap2() instead of mmap(), to map more memory (menage) * Do correct pthread-local checking in heap-checker! (maxim) * Avoid overflow on 64-bit machines in pprof (sanjay) * Add a few more GetPC() functions, including for AMD (csilvers) * Better method for overriding pthread functions (menage) * (Hacky) fix to avoid overwriting profile files after fork() (csilvers) * Crashing bugfix involving dumping heaps on small-stack threads (tudor) * Allow library versions with letters at the end (csilvers) * Config fixes for systems that don't define PATH_MAX (csilvers) * Confix fixes so we no longer need config.h after install (csilvers) * Fix to pprof to correctly read very big cpu profiles (csilvers) * Fix to pprof to deal with new commandline flags in modern gv's * Better error reporting when we can't access /proc/maps (etune) * Get rid of the libc-preallocate code (which could crash on some systems); no longer needed with local-threads fix (csilvers) git-svn-id: http://gperftools.googlecode.com/svn/trunk@11 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
2007-03-22 03:28:56 +00:00
<HTML>
<HEAD>
<title>Google Performance Tools</title>
</HEAD>
<BODY>
<ul>
<li> <A HREF="tcmalloc.html">thread-caching malloc</A>
<li> <A HREF="heap_checker.html">heap-checking using tcmalloc</A>
Fri Apr 13 14:50:51 2007 Google Inc. <opensource@google.com> * 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
2007-04-16 20:49:32 +00:00
<li> <A HREF="heapprofile.html">heap-profiling using tcmalloc</A>
<li> <A HREF="cpuprofile.html">CPU profiler</A>
Tue May 31 08:14:38 2005 Google Inc. <opensource@google.com> * google-perftools: version 0.2 release * Use mmap2() instead of mmap(), to map more memory (menage) * Do correct pthread-local checking in heap-checker! (maxim) * Avoid overflow on 64-bit machines in pprof (sanjay) * Add a few more GetPC() functions, including for AMD (csilvers) * Better method for overriding pthread functions (menage) * (Hacky) fix to avoid overwriting profile files after fork() (csilvers) * Crashing bugfix involving dumping heaps on small-stack threads (tudor) * Allow library versions with letters at the end (csilvers) * Config fixes for systems that don't define PATH_MAX (csilvers) * Confix fixes so we no longer need config.h after install (csilvers) * Fix to pprof to correctly read very big cpu profiles (csilvers) * Fix to pprof to deal with new commandline flags in modern gv's * Better error reporting when we can't access /proc/maps (etune) * Get rid of the libc-preallocate code (which could crash on some systems); no longer needed with local-threads fix (csilvers) git-svn-id: http://gperftools.googlecode.com/svn/trunk@11 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
2007-03-22 03:28:56 +00:00
</ul>
<hr>
Fri Apr 13 14:50:51 2007 Google Inc. <opensource@google.com> * 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
2007-04-16 20:49:32 +00:00
Last modified: Wed Mar 21 22:46:51 PDT 2007
Tue May 31 08:14:38 2005 Google Inc. <opensource@google.com> * google-perftools: version 0.2 release * Use mmap2() instead of mmap(), to map more memory (menage) * Do correct pthread-local checking in heap-checker! (maxim) * Avoid overflow on 64-bit machines in pprof (sanjay) * Add a few more GetPC() functions, including for AMD (csilvers) * Better method for overriding pthread functions (menage) * (Hacky) fix to avoid overwriting profile files after fork() (csilvers) * Crashing bugfix involving dumping heaps on small-stack threads (tudor) * Allow library versions with letters at the end (csilvers) * Config fixes for systems that don't define PATH_MAX (csilvers) * Confix fixes so we no longer need config.h after install (csilvers) * Fix to pprof to correctly read very big cpu profiles (csilvers) * Fix to pprof to deal with new commandline flags in modern gv's * Better error reporting when we can't access /proc/maps (etune) * Get rid of the libc-preallocate code (which could crash on some systems); no longer needed with local-threads fix (csilvers) git-svn-id: http://gperftools.googlecode.com/svn/trunk@11 6b5cf1ce-ec42-a296-1ba9-69fdba395a50
2007-03-22 03:28:56 +00:00
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