Update cheatsheets

tldr/linux/trace-cmd

@@ -6,33 +6,37 @@ source: https://github.com/tldr-pages/tldr.git
 # trace-cmd
 
 > Utility to interact with the Ftrace Linux kernel internal tracer.
-> This utility only runs as root.
+> See also: `trace-cmd list`, `trace-cmd record`, `trace-cmd report`.
 > More information: <https://manned.org/trace-cmd>.
 
 - Display the status of tracing system:
 
-`trace-cmd stat`
+`sudo trace-cmd stat`
 
 - List available tracers:
 
-`trace-cmd list -t`
+`sudo trace-cmd list -t`
 
 - Start tracing with a specific plugin:
 
-`trace-cmd start -p {{timerlat|osnoise|hwlat|blk|mmiotrace|function_graph|wakeup_dl|wakeup_rt|wakeup|function|nop}}`
+`sudo trace-cmd start -p {{function|function_graph|preemptirqsoff|irqsoff|preemptoff|wakeup|...}}`
 
 - View the trace output:
 
-`trace-cmd show`
+`sudo trace-cmd show`
 
 - Stop the tracing but retain the buffers:
 
-`trace-cmd stop`
+`sudo trace-cmd stop`
 
 - Clear the trace buffers:
 
-`trace-cmd clear`
+`sudo trace-cmd clear`
 
-- Clear the trace buffers and stop tracing:
+- Record a trace:
 
-`trace-cmd reset`
+`sudo trace-cmd record`
+
+- Display the recorded trace:
+
+`sudo trace-cmd report`