Lines Matching refs:snapshot

296   snapshot:
298 	This displays the "snapshot" buffer and also lets the user
299 	take a snapshot of the current running trace.
457   per_cpu/cpu0/snapshot:
459 	This is similar to the main "snapshot" file, but will only
460 	snapshot the current CPU (if supported). It only displays
461 	the content of the snapshot for a given CPU, and if
467 	from the snapshot buffer for the given CPU.
2025   system clock since it started. A snapshot of this time is
2487 - snapshot
2488   Will cause a snapshot to be triggered when the function is hit.
2490    echo 'native_flush_tlb_others:snapshot' > set_ftrace_filter
2492   To only snapshot once:
2494    echo 'native_flush_tlb_others:snapshot:1' > set_ftrace_filter
2498    echo '!native_flush_tlb_others:snapshot' > set_ftrace_filter
2499    echo '!native_flush_tlb_others:snapshot:0' > set_ftrace_filter
2634 CONFIG_TRACER_SNAPSHOT makes a generic snapshot feature
2637 this feature, since those are already using the snapshot
2648   snapshot:
2650 	This is used to take a snapshot and to read the output
2651 	of the snapshot. Echo 1 into this file to allocate a
2652 	spare buffer and to take a snapshot (swap), then read
2653 	the snapshot from this file in the same format as
2655 	System"). Both reads snapshot and tracing are executable
2658 	snapshot contents.
2668 Here is an example of using the snapshot feature.
2671  # echo 1 > snapshot
2672  # cat snapshot
2684 …prev_comm=swapper/5 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2685 …sleep-2242  [005] d...  2440.603846: sched_switch: prev_comm=snapshot-test-2 prev_pid=2242 prev_pr…
2687 …prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2701 …prev_comm=swapper/7 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2702 …snapshot-test-2-2229  [002] d...  2440.707438: sched_switch: prev_comm=snapshot-test-2 prev_pid=22…
2706 If you try to use this snapshot feature when current tracer is
2710  # echo 1 > snapshot
2712  # cat snapshot
2713 cat: snapshot: Device or resource busy
2727 set_event  snapshot  trace  trace_clock  trace_marker  trace_options