The dtrace command converts probe descriptions defined in file.d into a probe header file via the -h option or a probe description file via the -G option. OPTIONS -h generate a systemtap header file. -G generate a systemtap probe
The DTraceschedprovider allows the tracing of events related to CPU scheduling in the 4BSD and ULE schedulers. Thesched:::change-pri() probe fires when a thread's active scheduling priority is about to be updated. The first two arguments are the thread whose priority is about to be change...
# chmod 755 sleepers.bt # ./sleepers.bt Attaching 1 probe... iscsid is sleeping. iscsid is sleeping. bpftrace Language The bpftrace (bt) language is inspired by the D language used by dtrace and uses the same program structure. Each script consists of a preamble and one or more action ...
The fasttrap provider provides a DTrace probe that fires each time a user process executes an instruction. The pid provider allows for the dynamic creation of DTrace probes corresponding to instruction locations inside any user process specified using a process ID and an instruction address or symb...
dtrace_go , dtrace_stop - Start and stop tracing The dtrace_go() function causes tracing to begin for a D program that has been compiled using the dtrace_program_strcompile...
The probe arguments are class name, method name and signature, and in case of method-compile-end success or failure of compilation. gc-begin, gc-end Begin and end of Garbage Collection. To verify the availability of the probes, run: dtrace -P mono'$target' -l -c mono...
-nnameA process name to snoop. -pPIDA process ID to snoop. Occasionally the pathname for the file open cannot be read and the following error will be seen: dtrace: error on enabled probe ID 6 (...): invalid addressthis is normal behaviour. ...
Attaching 1 probe... iscsid is sleeping. iscsid is sleeping.BPFTRACE LANGUAGE The bpftrace (bt) language is inspired by the D language used by dtrace and uses the same program structure. Each script consists of a preamble and one or more action blocks.preamble...
The dtrace command provides a generic interface to the essential services provided by the DTrace facility, including: o Options that list the set of probes and providers currently published by DTrace o Options that enable probes directly using any of the probe description specifiers (provider, ...
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