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Diffstat (limited to 'man/stapprobes.irq.3stap.in')
| -rw-r--r-- | man/stapprobes.irq.3stap.in | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/man/stapprobes.irq.3stap.in b/man/stapprobes.irq.3stap.in new file mode 100644 index 00000000..84eaab16 --- /dev/null +++ b/man/stapprobes.irq.3stap.in @@ -0,0 +1,155 @@ +.\" -*- nroff -*- +.TH STAPPROBES.SNMP 3stap @DATE@ "IBM" +.SH NAME +stapprobes.irq \- Systemtap probes for IRQ, workqueue,etc + +.\" macros +.de SAMPLE +.br +.RS +.nf +.nh +.. +.de ESAMPLE +.hy +.fi +.RE +.. + +.SH DESCRIPTION + +Probe points for probing irq handler execution, softirqs, workqueues,etc + +.P +.TP +.B workqueue.create +probes creation of a new workqueue + +.B Arguments: +.I wq_thread + task_struct of the workqueue thread. +.I cpu + cpu for which the worker thread is created. + +.P +.TP +.B workqueue.insert +probes queuing of work on a workqueue. + +.B Arguments: +.I wq_thread + task_struct of the workqueue thread. +.I work + work_struct* being executed. +.I work_func + pointer to handler func. + +.P +.TP +.B workqueue.execute +probes execution of deferred work. + +.B Arguments: +.I wq_thread + task_struct of the workqueue thread. +.I work + work_struct* being executed. +.I work_func + pointer to handler func. + +.P +.TP +.B workqueue.destroy +probes destruction of each worker thread of each cpu for a workqueue. + +.B Arguments: +.I wq_thread + task_struct of the workqueue thread. + +.P +.TP +.B irq_handler.entry +Fires prior to execution of interrupt handler. +.B Arguments: +.I irq + irq number +.I action + struct irqaction* for this interrupt number +.I handler + interrupt handler function +.I flags + flags for this irq. +.I flags_str + A formatted string of flags. +.I dev_name + name of device +.I dev_id + cookie to identify device +.I next_irqaction + pointer to next irqaction for shared interrupts +.I dir + pointer to the /proc/irq/NN/name entry +.I thread_fn + interrupt handler function for threaded interrupts +.I thread + thread pointer for threaded interrupts +.I thread_flags + flags related to thread + +.P +.TP +.B irq_handler.exit +Fires post execution of interrupt handler. +.B Arguments: +.I irq + irq number +.I action + struct irqaction* for this interrupt number +.I ret + return value from interrupt handler that just executed. +.I handler + interrupt handler function +.I flags + flags for this irq. +.I flags_str + A formatted string of flags. +.I dev_name + name of device +.I dev_id + cookie to identify device +.I next_irqaction + pointer to next irqaction for shared interrupts +.I dir + pointer to the /proc/irq/NN/name entry +.I thread_fn + interrupt handler function for threaded interrupts +.I thread + thread pointer for threaded interrupts +.I thread_flags + flags related to thread + +.P +.TP +.B softirq.entry +triggered just before executing handler for a pending softirq +.I h + struct softirq* for current pending softirq. +.I vec + softirq_action vector +.I action + pointer to softirq handler just about to execute. + +.P +.TP +.B softirq.exit +triggered just after executing handler for a pending softirq +.I h + struct softirq* for just executed softirq. +.I vec + softirq_action vector +.I action + pointer to softirq handler that just finished execution. + +.SH SEE ALSO +.IR stap (1), +.IR stapprobes (3stap) |