sysperfana/perfinvestigator/com.nokia.carbide.cpp.pi.doc.user/html/reference/analyzer/troubleshooting.htm
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     6   <title>Troubleshooting</title>
       
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    11 
       
    12 <body>
       
    13 <h2>Troubleshooting</h2>
       
    14 
       
    15 <p>Below are listed the error messages and resolutions for problems with the PI
       
    16 Import wizard during file import.</p>
       
    17 
       
    18 <table border="1" cellspacing="1" cellpadding="2">
       
    19   <colgroup><col width="250*">
       
    20     <col width="356*">
       
    21   </colgroup>
       
    22   <tbody>
       
    23     <tr>
       
    24       <th>Message</th>
       
    25       <th align="center">Resolution</th>
       
    26     </tr>
       
    27     <tr>
       
    28       <td>Unable to resolve current connection. Please check your connection
       
    29         settings.</td>
       
    30       <td>This message usually appears when you select to get profiler files
       
    31         form device via TraceViewer for the first time, and the connections
       
    32         settings have not yet defined. 
       
    33 
       
    34         <p>To resolve the problem, click <strong>Connection
       
    35         Settings...</strong> to open the dialog where you can select the
       
    36         correct settings for the connection you want to use. After saving the
       
    37         settings, click Refresh Plug-ins List and continue with tracing. For
       
    38         more specific instructions, see <a
       
    39         href="../../tasks/analyser/an_load_trace_files.htm">Importing Profiler
       
    40         Data files</a>.</p>
       
    41       </td>
       
    42     </tr>
       
    43     <tr>
       
    44       <td>Could not read available plug-ins from device. See Troubleshooting
       
    45         topic from Help.</td>
       
    46       <td><p>This message appears when the connection settings have been
       
    47         defined, but the information for the plug-in list cannot be fetched.</p>
       
    48 
       
    49         <p>To resolve the problem, test that the Tracing service connection is
       
    50         working:</p>
       
    51         <ol>
       
    52           <li>Click <strong>Connection Settings... </strong></li>
       
    53           <li>Select the connection you are using and click
       
    54             <strong>Edit...</strong></li>
       
    55           <li>Select the <strong>Test Connection</strong> tab</li>
       
    56           <li>Select the Device OS</li>
       
    57           <li>Select Tracing as the service to test</li>
       
    58           <li>Click <strong>Initiate Service Testing</strong>.</li>
       
    59         </ol>
       
    60 
       
    61         <p>If the connection works, but you still get the error message, makes
       
    62         sure that PI Profiler is installed on the device.</p>
       
    63       </td>
       
    64     </tr>
       
    65     <tr>
       
    66       <td>Received corrupted data! See Troubleshooting topic from Help 
       
    67 
       
    68         <p></p>
       
    69       </td>
       
    70       <td>This message appears when try to use a USB connections for profiling
       
    71         several plugins, and the connection cannot handle the amount of data. 
       
    72 
       
    73         <p>To resolve the problem, try profiling fewer plugins; or, if you need
       
    74         to profile several plugins in the same trace, change to TCP/IP Musti
       
    75         connection. For more specific instructions, see <a
       
    76         href="../../tasks/analyser/an_load_trace_files.htm">Importing Profiler
       
    77         Data files</a>.</p>
       
    78       </td>
       
    79     </tr>
       
    80     <tr>
       
    81       <td>Multiple problems have occurred. Jave heap space.</td>
       
    82       <td>This message can appear when you try to import a large profiler date
       
    83         file. 
       
    84 
       
    85         <p>Although Carbide.c++ reserves a large block of memory for the Java
       
    86         Virtual Machine (JVM) to run the whole IDE, in some cases, the trace
       
    87         import process may fail due to out-of-memory situation. This is usually
       
    88         due to the Profiler trace log being too long in time and/or CPU load
       
    89         being extensively high over the use case. The out-of-menory may also
       
    90         lead to instability issues with Carbide itself, in which case the error
       
    91         is shown.</p>
       
    92 
       
    93         <p>This problem can be avoided by keeping the profiled use cases
       
    94         shorter (the recommendation is maximum 5 minutes), and by selecting
       
    95         only those Profiler plug-ins that are needed for analysing the use
       
    96         case. Shorter use cases (in time) and smaller amount of selected
       
    97         profiler plug-ins also ease up the analysis phase, since it is easier
       
    98         to a browse shorter set of data and to pinpoint the possible
       
    99         performance issues within the trace.</p>
       
   100 
       
   101         <p>If you need to analyse longer use cases, there are also other tools
       
   102         available for long-period-testing (LPT). For example, you can run the
       
   103         Nokia Energy Profiler (NEP) directly on target and it can be used for
       
   104         LPT type of use cases.</p>
       
   105       </td>
       
   106     </tr>
       
   107   </tbody>
       
   108 </table>
       
   109 
       
   110 <p></p>
       
   111 
       
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