What s the best free C profiler for Windows

Question

I m looking for a profiler in order to find the bottleneck in my C   code  I d like to find a free  non-intrusive  and good profiling tool  I m a game developer  and I use PIX for Xbox nbsp 360 and found it very good  but it s not free  I know the Intel VTune  but it s not free either

User · Answer

Microsoft has the Windows Performance Toolkit    It does require Windows nbsp Vista  Windows Server 2008  or Windows nbsp 7

User · Answer

Very Sleepy is a C C   CPU profiler for Windows systems  free

User · Answer

Another profiler is Shiny

User · Answer

CodeXL has now superseded the End Of Line d AMD Code Analyst and both are free  but not as advanced as VTune  There s also Sleepy  which is very simple  but does the job in many cases  Note  All three of the tools above are unmaintained since several years

User · Answer

I highly recommend Windows Performance Toolkit  WPT  or XPERF  The command line xperf command line tool records Event Tracing for Windows  ETW  logs that can be analyzed using the GUI xperfview tool   Using stacktrace command line arguement has proven to be an invaluable tool for my company as it profiles and troubleshoots bottlenecks  One of the most compelling things is that the WPT can be installed in any environment even on the venerable Windows XP   On Windows 8 the Windows Performance Analyzer takes xperf to an even higher level   The hard numbers and stats provided in ETW logs are unparalleled in detail except for  visual studio profiler  2010 2012  which is also great but not free AFAIK   If you have never used xperf   you do not know what you are missing

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I ve used  TrueTime - part of Compuware s DevPartner suite for years  There s a  free version  you could try Compuware DevPartner Performance Analysis Community Edition   available

User · Answer

Microsoft has the Windows Performance Toolkit    It does require Windows nbsp Vista  Windows Server 2008  or Windows nbsp 7

User · Answer

I use VSPerfMon which is the StandAlone Visual Studio Profiler  I wrote a GUI tool to help me run it and look at the results   http   code google com p vsptree

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Proffy is quite cool   http   pauldoo com proffy   Disclaimer  I wrote this

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I use AQTime  it is one of the best profiling tools I ve ever used  It isn t free but you can get a 30 day trial  so if you plan on a optimizing and profiling only one project and 30 days are enough for you then I would recommend using this application   http   www automatedqa com downloads aqtime index asp

User · Answer

There is an instrumenting  function-accurate  profiler for MS VC 7 1 and higher called MicroProfiler  You can get it here  x64  or here  x86   It doesn t require any modifications or additions to your code and is able of displaying function statistics with callers and callees in real-time without the need of closing application stopping the profiling process   It integrates with VisualStudio  so you can easily enable disable profiling for a project  It is also possible to install it on the clean machine  it only needs the symbol information be located along with the executable being profiled   This tool is useful when statistical approximation from sampling profilers like Very Sleepy isn t sufficient   Rough comparison shows  that it beats AQTime  when it is invoked in instrumenting  function-level run   The following program  full optimization  inlining disabled  runs three times faster with micro-profiler displaying results in real-time  than with AQTime simply collecting stats   void f         srand time 0         vector lt double gt  v 300000        generate n v begin    v size     amp random       sort v begin    v end         sort v rbegin    v rend         sort v begin    v end         sort v rbegin    v rend

User · Answer

I used Luke Stackwalker and it did the job for my Visual Studio project   Other interesting projects are    Proffy Dyninst

User · Answer

Proffy is quite cool   http   pauldoo com proffy   Disclaimer  I wrote this

User · Answer

I highly recommend Windows Performance Toolkit  WPT  or XPERF  The command line xperf command line tool records Event Tracing for Windows  ETW  logs that can be analyzed using the GUI xperfview tool   Using stacktrace command line arguement has proven to be an invaluable tool for my company as it profiles and troubleshoots bottlenecks  One of the most compelling things is that the WPT can be installed in any environment even on the venerable Windows XP   On Windows 8 the Windows Performance Analyzer takes xperf to an even higher level   The hard numbers and stats provided in ETW logs are unparalleled in detail except for  visual studio profiler  2010 2012  which is also great but not free AFAIK   If you have never used xperf   you do not know what you are missing

User · Answer

I use AQTime  it is one of the best profiling tools I ve ever used  It isn t free but you can get a 30 day trial  so if you plan on a optimizing and profiling only one project and 30 days are enough for you then I would recommend using this application   http   www automatedqa com downloads aqtime index asp

User · Answer

I used Luke Stackwalker and it did the job for my Visual Studio project   Other interesting projects are    Proffy Dyninst

User · Answer

Please try my profiler  called cRunWatch   It is just two files  so it is easy to integrate with your projects  and requires adding exactly one line to instrument a piece of code   http   ravenspoint wordpress com 2010 06 16 timing   Requires the Boost library

User · Answer

I ve used  TrueTime - part of Compuware s DevPartner suite for years  There s a  free version  you could try Compuware DevPartner Performance Analysis Community Edition   available

User · Answer

You can use EmbeddedProfiler  it s free for both Linux and Windwos   The profiler is intrusive  by functionality  but it doens t require any code modifications  Just add a specific compiler flag  -finstrument-functios for gcc MinGW or  GH for MSVC  and link the profiler s library  It can provide you a full call tree or just a funciton list  It has it s own analyzer GUI

User · Answer

CodeXL has now superseded the End Of Line d AMD Code Analyst and both are free  but not as advanced as VTune  There s also Sleepy  which is very simple  but does the job in many cases  Note  All three of the tools above are unmaintained since several years

User · Answer

I ve used  TrueTime - part of Compuware s DevPartner suite for years  There s a  free version  you could try Compuware DevPartner Performance Analysis Community Edition   available

User · Answer

I use AQTime  it is one of the best profiling tools I ve ever used  It isn t free but you can get a 30 day trial  so if you plan on a optimizing and profiling only one project and 30 days are enough for you then I would recommend using this application   http   www automatedqa com downloads aqtime index asp

User · Answer

Very Sleepy is a C C   CPU profiler for Windows systems  free

User · Answer

CodeXL has now superseded the End Of Line d AMD Code Analyst and both are free  but not as advanced as VTune  There s also Sleepy  which is very simple  but does the job in many cases  Note  All three of the tools above are unmaintained since several years

User · Answer

There is an instrumenting  function-accurate  profiler for MS VC 7 1 and higher called MicroProfiler  You can get it here  x64  or here  x86   It doesn t require any modifications or additions to your code and is able of displaying function statistics with callers and callees in real-time without the need of closing application stopping the profiling process   It integrates with VisualStudio  so you can easily enable disable profiling for a project  It is also possible to install it on the clean machine  it only needs the symbol information be located along with the executable being profiled   This tool is useful when statistical approximation from sampling profilers like Very Sleepy isn t sufficient   Rough comparison shows  that it beats AQTime  when it is invoked in instrumenting  function-level run   The following program  full optimization  inlining disabled  runs three times faster with micro-profiler displaying results in real-time  than with AQTime simply collecting stats   void f         srand time 0         vector lt double gt  v 300000        generate n v begin    v size     amp random       sort v begin    v end         sort v rbegin    v rend         sort v begin    v end         sort v rbegin    v rend

User · Answer

I use AQTime  it is one of the best profiling tools I ve ever used  It isn t free but you can get a 30 day trial  so if you plan on a optimizing and profiling only one project and 30 days are enough for you then I would recommend using this application   http   www automatedqa com downloads aqtime index asp

User · Answer

Please try my profiler  called cRunWatch   It is just two files  so it is easy to integrate with your projects  and requires adding exactly one line to instrument a piece of code   http   ravenspoint wordpress com 2010 06 16 timing   Requires the Boost library

User · Answer

I ve used  TrueTime - part of Compuware s DevPartner suite for years  There s a  free version  you could try Compuware DevPartner Performance Analysis Community Edition   available

User · Answer

You can use EmbeddedProfiler  it s free for both Linux and Windwos   The profiler is intrusive  by functionality  but it doens t require any code modifications  Just add a specific compiler flag  -finstrument-functios for gcc MinGW or  GH for MSVC  and link the profiler s library  It can provide you a full call tree or just a funciton list  It has it s own analyzer GUI

User · Answer

Another profiler is Shiny

User · Answer

CodeXL has now superseded the End Of Line d AMD Code Analyst and both are free  but not as advanced as VTune  There s also Sleepy  which is very simple  but does the job in many cases  Note  All three of the tools above are unmaintained since several years

User · Answer

I use VSPerfMon which is the StandAlone Visual Studio Profiler  I wrote a GUI tool to help me run it and look at the results   http   code google com p vsptree

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