diff options
Diffstat (limited to 'lib/observer/doc')
| -rw-r--r-- | lib/observer/doc/src/observer_ug.xml | 109 |
1 files changed, 86 insertions, 23 deletions
diff --git a/lib/observer/doc/src/observer_ug.xml b/lib/observer/doc/src/observer_ug.xml index be5d249f37..6eb72f3e58 100644 --- a/lib/observer/doc/src/observer_ug.xml +++ b/lib/observer/doc/src/observer_ug.xml @@ -168,7 +168,7 @@ <item><p>The length of the message queue for the process.</p></item> </taglist> - <p>Option <em>Process info</em> opens a detailed information window on the selected process, + <p>Option <em>Process info</em> opens a detailed information window on the process under the mouse pointer, including the following:</p> <taglist> <tag>Process Information</tag> @@ -195,12 +195,53 @@ </p> </note> - <p>Option <em>Trace Processes</em> adds the selected process identifiers to tab + <p>Option <em>Trace selected processes</em> adds the selected process identifiers to tab <em>Trace Overview</em> plus the node that the processes reside on. </p> - <p>Option <em>Trace Named Processes</em> adds the registered name of the processes. This can be + <p>Option <em>Trace selected processes by name</em> adds the registered name of the processes. This can be useful when tracing is done on many nodes, as processes with that name are then traced on all traced nodes.</p> + <p>Option <em>Kill process</em> brutally kills the processes under + the mouse pointer by sending an exit signal with + reason <c>kill</c>.</p> + + </section> + + <section> + <title>Ports Tab</title> + <p>Tab <em>Ports</em> lists port information in columns. + For each port the following information is displayed: + </p> + <taglist> + <tag>Id</tag> + <item><p>The port identifier.</p></item> + <tag>Connected</tag> + <item><p>The process identifier for the process that owns the + port.</p></item> + <tag>Name</tag> + <item><p>The registered name of the port, if any.</p></item> + <tag>Controls</tag> + <item><p>The name of the command set by <seealso marker="erts:erlang#open_port-2"><c>erlang:open_port/2</c></seealso>.</p></item> + <tag>Slot</tag> + <item><p>The internal index of the port.</p></item> + </taglist> + + <p>Option <em>Port info</em> opens a detailed information window + for the port under the mouse pointer. In addition to the + information above, it also shows links and monitors.</p> + + <p>Option <em>Trace selected ports</em> adds the selected port + identifiers, and the nodes that the ports reside on, + to tab <em>Trace Overview</em>.</p> + + <p>Option <em>Trace selected ports by name</em> adds the + registered name of the port to tab <em>Trace Overview</em>. This + can be useful when tracing is done on many nodes, as ports with + that name are then traced on all traced nodes.</p> + + <p>Option <em>Close</em> + executes <seealso marker="erts:erlang#port_close-1"><c>erlang:port_close/1</c></seealso> + on the port under the mouse pointer.</p> </section> @@ -211,8 +252,11 @@ applications are not diplayed. Use menu <em>View</em> to view "system" ETS tables, unreadable ETS tables, or Mnesia tables. </p> - <p>Double-click to view the table content. To view table information, select the table - and activate menu <em>View > Table information</em>.</p> + <p>Double-click to view the table content, or right-click and + select option <em>Show Table Content</em>. To view table + information, select the table and activate menu <em>View > + Table information</em>, or right-click and select option <em>Table + info</em>.</p> <p>You can use <seealso marker="stdlib:re">regular expressions</seealso> and search for objects, and edit or delete them. </p> @@ -220,11 +264,12 @@ <section> <title>Trace Overview Tab</title> - <p>Tab <em>Trace Overview</em> handles tracing. Trace - by selecting the processes to be traced and how to trace - them. You can trace messages, function calls, and events, where - events are process-related events such as <c>spawn</c>, - <c>exit</c>, and many others. + <p>Tab <em>Trace Overview</em> handles tracing. Trace by selecting + the processes or ports to be traced and how to trace them. For + processes, you can trace messages, function calls, scheduling, + garbage collections, and process-related events such + as <c>spawn</c>, <c>exit</c>, and many others. For ports, you can + trace messages, scheduling and port-related events. </p> <p>To trace function calls, you also need to set up @@ -234,31 +279,49 @@ specifications can also be used to trigger more information in the trace messages. </p> - <note><p>Trace patterns only apply to the traced processes.</p></note> + + <p>You can also set match specifications on messages. By default, + if tracing messages, all messages sent and/or received by the + process or port are traced. Match specifications can be used to + reduce the number of traced messages and/or to trigger more + information in the trace messages.</p> + + <note><p>Trace patterns only apply to the traced processes and + ports.</p></note> <p> - Processes are added from the <em>Applications</em> or <em>Processes</em> tabs. - A special <em>new</em> identifier, meaning all processes spawned after trace - start, can be added with button <em>Add 'new' Process</em>. + Processes are added from the <em>Applications</em> + or <em>Processes</em> tabs. Ports are added from + the <em>Ports</em> tab. A special <em>new</em> identifier, + meaning all processes, or ports, started after trace start, can + be added with buttons <em>Add 'new' Processes</em> and <em>Add + 'new' Ports</em>, respecively. </p> <p> - When adding processes, a window with trace options is displayed. The chosen - options are set for the selected processes. - Process options can be changed by right-clicking a process. + When adding processes or ports, a window with trace options is + displayed. The chosen options are set for the selected + processes/ports. To change the options, right-click the process + or port and select <em>Edit process options</em>. To remove a + process or port from the list, right-click and select <em>Remove + process</em> or <em>Remove port</em>, respectively. </p> <p> - Processes added by process identifiers add the nodes these - processes reside on in the node list. More nodes can be added by clicking - button <em>Add Nodes</em>. + Processes and ports added by process/port identifiers add the + nodes these processes/ports reside on in the node list. More + nodes can be added by clicking button <em>Add Nodes</em>, or by + right-clicking in the <em>Nodes</em> list and select <em>Add + Nodes</em>. To remove nodes, select them, then right-click and + choose <em>Remove nodes</em>. </p> <p> If function calls are traced, trace patterns must be added by clicking button <em>Add Trace Pattern</em>. Select a module, function(s), and a match specification. If no functions are selected, all functions in the module are traced.</p> <p> - Trace patterns can also be added for traced messages. This is - done in the same way as for traced function calls. Separate - trace patterns must be set for sent and received messages. + Trace patterns can also be added for traced messages. Click + button <em>Add Trace Pattern</em> and select <em>Messages + sent</em> or <em>Messages received</em>, and a match + specification. </p> <p> A few basic match specifications are provided in the tool, and |