visualize this data with a histogram that is available if CONFIG_HIST_TRIGGERS
is set::
- # :> /sys/kernel/debug/tracing/trace
- # echo 'hist:keys=latency' > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/trigger
- # echo 1 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/enable
+ # :> /sys/kernel/tracing/trace
+ # echo 'hist:keys=latency' > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/trigger
+ # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable
# echo 1 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure
- # echo 0 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/enable
- # cat /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_mem_latency/hist
+ # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/enable
+ # cat /sys/kernel/tracing/events/resctrl/pseudo_lock_mem_latency/hist
# event histogram
#
and misses using the platform's precision counters.
::
- # :> /sys/kernel/debug/tracing/trace
- # echo 1 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_l2/enable
+ # :> /sys/kernel/tracing/trace
+ # echo 1 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable
# echo 2 > /sys/kernel/debug/resctrl/newlock/pseudo_lock_measure
- # echo 0 > /sys/kernel/debug/tracing/events/resctrl/pseudo_lock_l2/enable
- # cat /sys/kernel/debug/tracing/trace
+ # echo 0 > /sys/kernel/tracing/events/resctrl/pseudo_lock_l2/enable
+ # cat /sys/kernel/tracing/trace
# tracer: nop
#