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diff --git a/CIAO/docs/Purify.html b/CIAO/docs/Purify.html new file mode 100644 index 00000000000..fff258db120 --- /dev/null +++ b/CIAO/docs/Purify.html @@ -0,0 +1,72 @@ +<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> +<html> + <head> + <title>Using Rational Purify with CIAO</title> + <!-- $Id$ --> + </head> + <body> + <h1>Using Rational Purify with CIAO</h1> + <p>This document is about using Purify with Visual Studio 7.1 to track down + memory leaks and other bugs in CIAO applications. For the Linux/Unix + environment, Valgrind is a better-suited tool - see Will Otte's documentation + on using Valgrind with CIAO in this directory.</p> + <p>Purify can be run from within Visual Studio, or standalone. The executable is + c:\Program Files\Rational\PurifyPlus\purifyw.exe. Typing this will bring up the + same Purify window you see if you run it from within Visual Studio. You can + install Purify from the web by going to <A href="file://\\Atlantis\software\RationSuiteEnterprise-v2003-06-12"> + \\Atlantis\software\RationSuiteEnterprise-v2003-06-12</A> and clicking + on <code>C57BPML.zip</code>. This will install a whole bunch of Rational stuff + by default, so you will probaby want to deselect everything but PurifyPlus, + although Quantify is a good bottleneck-finder when you're trying to improve + performance, so that might be worth installing and playing with as well. During + the installation process, you'll be prompted for a mode of licensing. Select + the use of a license server, and then you'll be prompted for its address. Use <code> + rational.vuse.vanderbilt.edu</code>.</p> + <p>The option to exclude all modules in Windows directories will probably be set + by default, but if you notice memory leaks reported for Windows stuff, you + might want to double check this and turn it off. From the PurifyPlus menu bar + item in Visual Studio, it's at <b>PurifyPlus->Purify->Settings->DefaultSettings->PowerCheck</b>. + When run for the first time, Purify will instrument all libraries linked to the + executable. Select <b>PurifyPlus->Purify->Run</b>, and a window will pop + up prompting you for the executable name, command line options, and working + directory.</p> + <p>Purify's output will appear in the Visual Studio text editing window. This + output can be saved to the given filename. The type of error reported is + indicated by a 3-letter code - the most common are UMR (Unitialized Memory + Read), FMM (Freeing Mismatched Memory), and MLK (Memory Leak). Each of these + can be expanded to show the call stack. The depth of the call stack can be + modified in Settings if it's not deep enough. FMM messages will show both + allocation and deallocation call stacks.</p> + Quite often in CIAO, we will want to Purify a process that is spawned by + another process, and therefore not directly runnable in Purify. This is fairly + easy to do, but it must be done from the command line. If the name of the child + process we want to instrument is <code>child.exe</code>, then it can be + instrumented by typing + <br> + <code>purifyw /Run=no /Replace=yes child.exe</code><br> + This will rename the original executable as <code>child.exe.Original</code>, + and the new instrumented executable will be <code>child.exe</code>. Now when + you run the parent process under Purify, you'll see one window opened up in + Visual Studio's text editor for this process, and when the child process is + spawned, a second window will open. A couple of caveats to make this work + smoothly: + <ul> + <li> + Instrumented executables run 2 to 5 times slower than uninstrumented ones, so + any timeouts in the code should be extended accordingly. For example, if an + instrumented NodeApplication is spawned by NodeManager, add <code>-d 15</code> or + <code>-d 20</code> + to NodeManager's command line. + <li> + If an instrumented process is simply killed, there will probably be many + spurious error messages, mostly related to ORB resources that were not cleaned + up by a graceful shutdown. All processes tested with Purify should have a + graceful shutdown built in to eliminate these bogus memory leak messages. + </li> + </ul> + <hr> + <address>Jeff Parsons</address> + <!-- hhmts start --> Last modified: Oct 3 2005 + <!-- hhmts end --> + </body> +</html> |