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head/en_US.ISO8859-1/books/handbook/dtrace/chapter.xml
| Show First 20 Lines • Show All 50 Lines • ▼ Show 20 Lines | <sect1 xml:id="dtrace-synopsis"> | ||||
| <para>The &os; implementation provides full support for kernel | <para>The &os; implementation provides full support for kernel | ||||
| &dtrace; and experimental support for userland &dtrace;. | &dtrace; and experimental support for userland &dtrace;. | ||||
| Userland &dtrace; allows users to perform function boundary | Userland &dtrace; allows users to perform function boundary | ||||
| tracing for userland programs using the <literal>pid</literal> | tracing for userland programs using the <literal>pid</literal> | ||||
| provider, and to insert static probes into userland programs for | provider, and to insert static probes into userland programs for | ||||
| later tracing. Some ports, such as | later tracing. Some ports, such as | ||||
| <package>databases/postgres-server</package> and | <package>databases/postgres-server</package> and | ||||
| <package>lang/php5</package> have a &dtrace; option to enable | <package>lang/php56</package> have a &dtrace; option to enable | ||||
| static probes. &os; 10.0-RELEASE has reasonably good userland | static probes. &os; 10.0-RELEASE has reasonably good userland | ||||
| &dtrace; support, but it is not considered production ready. In | &dtrace; support, but it is not considered production ready. In | ||||
| particular, it is possible to crash traced programs.</para> | particular, it is possible to crash traced programs.</para> | ||||
| <para>The official guide to DTrace is maintained by the Illumos | <para>The official guide to DTrace is maintained by the Illumos | ||||
| project at <uri | project at <uri | ||||
| xlink:href="http://dtrace.org/guide">DTrace | xlink:href="http://dtrace.org/guide">DTrace | ||||
| Guide</uri>.</para> | Guide</uri>.</para> | ||||
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