projects / deliverable / tracecompass.git / blame
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1 | <?xml version='1.0' encoding='utf-8' ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| 2 | <html xmlns="http://www.w3.org/1999/xhtml"> | |
| 3 | <head> | |
| 4 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> | |
| 6dc1ef9f | 5 | <title>LTTng Plug-in User Guide (legacy) - Limitations</title> |
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6 | <link type="text/css" rel="stylesheet" href="../../../book.css"/> |
| 7 | </head> | |
| 8 | <body> | |
| 9 | <table class="navigation" style="width: 100%;" border="0" summary="navigation"> | |
| 10 | <tr> | |
| 11 | <th style="width: 100%" align="center" colspan="3">Limitations</th> | |
| 12 | </tr> | |
| 13 | <tr> | |
| 14 | <td style="width: 20%" align="left"> | |
| 1507e5df | 15 | <a href="LTTng-Tracer-Control.html" title="LTTng Tracer Control"> |
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16 | <img alt="Previous" border="0" src="../../../images/prev.gif"/> |
| 17 | </a> | |
| 18 | </td> | |
| 19 | <td style="width: 60%" align="center"></td> | |
| 20 | <td style="width: 20%" align="right"> | |
| 6dc1ef9f | 21 | <a href="References.html" title="References"> |
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22 | <img alt="Next" border="0" src="../../../images/next.gif"/> |
| 23 | </a> | |
| 24 | </td> | |
| 25 | </tr> | |
| 26 | <tr> | |
| 1507e5df | 27 | <td style="width: 20%" align="left" valign="top">LTTng Tracer Control</td> |
| 70f06a6f | 28 | <td style="width: 60%" align="center"></td> |
| 6dc1ef9f | 29 | <td style="width: 20%" align="right" valign="top">References</td> |
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30 | </tr> |
| 31 | </table><hr/> | |
| 32 | <h1 id="Limitations">Limitations</h1> | |
| 33 | <p>The current implementation is under heavy development and some important features are still missing. Here is a list of the known bugs and missing features that are being worked on.</p> | |
| 34 | <p> | |
| 35 | <b>Performance</b> | |
| 36 | </p> | |
| 12bf6834 | 37 | <p>The current version takes 3-5 more time to fully parse a trace than the finely optimized C version (LTTv). However, once a trace/experiment is selected, the user has immediate feedback and can start navigating and visualizing the trace while the parsing takes place in the background.</p> |
| 70f06a6f | 38 | <p> |
| 1507e5df | 39 | <b>Tracer control limitations (for LTTng Tracer Toolchain v0.x)</b> |
| 70f06a6f | 40 | </p> |
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41 | <p>Due to errors in the LTTng remote agent, controlling of user space traces is currently not possible.</p> |
| 42 | <p>The LTTng agent doesn't allow to retrieve the trace state, i.e. whether a trace is started or stopped. Therefore, when reconnecting with Eclipse, the LTTng control is not able to display the correct state. Currently, the trace is considered as started.</p> | |
| 43 | <p>For kernel traces, it's currently not possible to configure the channels. This will be added in the next release. </p> | |
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44 | <p> |
| 45 | <b>64-bits and non-x86 host architectures</b> | |
| 46 | </p> | |
| 6dc1ef9f | 47 | <p>The parser libraries have not been extensively tested for 64-bits and not tested at all on non-x86 architectures. The code is believed to work on a broad range of architectures but this cannot be certified for now.</p><hr/> |
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48 | <table class="navigation" style="width: 100%;" border="0" summary="navigation"> |
| 49 | <tr> | |
| 50 | <td style="width: 20%" align="left"> | |
| 1507e5df | 51 | <a href="LTTng-Tracer-Control.html" title="LTTng Tracer Control"> |
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52 | <img alt="Previous" border="0" src="../../../images/prev.gif"/> |
| 53 | </a> | |
| 54 | </td> | |
| 55 | <td style="width: 60%" align="center"> | |
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56 | <a href="User-Guide.html" title="LTTng Plug-in User Guide (legacy)"> |
| 57 | <img alt="LTTng Plug-in User Guide (legacy)" border="0" src="../../../images/home.gif"/> | |
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58 | </a> |
| 59 | </td> | |
| 60 | <td style="width: 20%" align="right"> | |
| 6dc1ef9f | 61 | <a href="References.html" title="References"> |
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62 | <img alt="Next" border="0" src="../../../images/next.gif"/> |
| 63 | </a> | |
| 64 | </td> | |
| 65 | </tr> | |
| 66 | <tr> | |
| 1507e5df | 67 | <td style="width: 20%" align="left" valign="top">LTTng Tracer Control</td> |
| 70f06a6f | 68 | <td style="width: 60%" align="center"></td> |
| 6dc1ef9f | 69 | <td style="width: 20%" align="right" valign="top">References</td> |
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70 | </tr> |
| 71 | </table> | |
| 72 | </body> | |
| 73 | </html> |