Lines Matching refs:snapshot

290   snapshot:
292 	This displays the "snapshot" buffer and also lets the user
293 	take a snapshot of the current running trace.
446   per_cpu/cpu0/snapshot:
448 	This is similar to the main "snapshot" file, but will only
449 	snapshot the current CPU (if supported). It only displays
450 	the content of the snapshot for a given CPU, and if
456 	from the snapshot buffer for the given CPU.
1989   system clock since it started. A snapshot of this time is
2434 - snapshot
2435   Will cause a snapshot to be triggered when the function is hit.
2437    echo 'native_flush_tlb_others:snapshot' > set_ftrace_filter
2439   To only snapshot once:
2441    echo 'native_flush_tlb_others:snapshot:1' > set_ftrace_filter
2445    echo '!native_flush_tlb_others:snapshot' > set_ftrace_filter
2446    echo '!native_flush_tlb_others:snapshot:0' > set_ftrace_filter
2581 CONFIG_TRACER_SNAPSHOT makes a generic snapshot feature
2584 this feature, since those are already using the snapshot
2595   snapshot:
2597 	This is used to take a snapshot and to read the output
2598 	of the snapshot. Echo 1 into this file to allocate a
2599 	spare buffer and to take a snapshot (swap), then read
2600 	the snapshot from this file in the same format as
2602 	System"). Both reads snapshot and tracing are executable
2605 	snapshot contents.
2615 Here is an example of using the snapshot feature.
2618  # echo 1 > snapshot
2619  # cat snapshot
2631 …prev_comm=swapper/5 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2632 …sleep-2242  [005] d...  2440.603846: sched_switch: prev_comm=snapshot-test-2 prev_pid=2242 prev_pr…
2634 …prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2648 …prev_comm=swapper/7 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2…
2649 …snapshot-test-2-2229  [002] d...  2440.707438: sched_switch: prev_comm=snapshot-test-2 prev_pid=22…
2653 If you try to use this snapshot feature when current tracer is
2657  # echo 1 > snapshot
2659  # cat snapshot
2660 cat: snapshot: Device or resource busy
2674 set_event  snapshot  trace  trace_clock  trace_marker  trace_options