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17abd7c36c
Add multiple histograms support for each event. This allows user to set multiple histograms to an event. ftrace.[instance.INSTANCE.]event.GROUP.EVENT.hist[.N] { ... } The 'N' is a digit started string and it can be omitted for the default histogram. For example, multiple hist triggers example in the Documentation/trace/histogram.rst can be written as below; ftrace.event.net.netif_receive_skb.hist { 1 { keys = skbaddr.hex values = len filter = len < 0 } 2 { keys = skbaddr.hex values = len filter = len > 4096 } 3 { keys = skbaddr.hex values = len filter = len == 256 } 4 { keys = skbaddr.hex values = len } 5 { keys = len values = common_preempt_count } } Link: https://lkml.kernel.org/r/162856125628.203126.15846930277378572120.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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.. | ||
blktrace.c | ||
bpf_trace.c | ||
bpf_trace.h | ||
error_report-traces.c | ||
fgraph.c | ||
ftrace.c | ||
ftrace_internal.h | ||
Kconfig | ||
kprobe_event_gen_test.c | ||
Makefile | ||
power-traces.c | ||
preemptirq_delay_test.c | ||
ring_buffer.c | ||
ring_buffer_benchmark.c | ||
rpm-traces.c | ||
synth_event_gen_test.c | ||
trace.c | ||
trace.h | ||
trace_benchmark.c | ||
trace_benchmark.h | ||
trace_boot.c | ||
trace_branch.c | ||
trace_clock.c | ||
trace_dynevent.c | ||
trace_dynevent.h | ||
trace_entries.h | ||
trace_event_perf.c | ||
trace_events.c | ||
trace_events_filter.c | ||
trace_events_filter_test.h | ||
trace_events_hist.c | ||
trace_events_inject.c | ||
trace_events_synth.c | ||
trace_events_trigger.c | ||
trace_export.c | ||
trace_functions.c | ||
trace_functions_graph.c | ||
trace_hwlat.c | ||
trace_irqsoff.c | ||
trace_kdb.c | ||
trace_kprobe.c | ||
trace_kprobe_selftest.c | ||
trace_kprobe_selftest.h | ||
trace_mmiotrace.c | ||
trace_nop.c | ||
trace_osnoise.c | ||
trace_output.c | ||
trace_output.h | ||
trace_preemptirq.c | ||
trace_printk.c | ||
trace_probe.c | ||
trace_probe.h | ||
trace_probe_tmpl.h | ||
trace_recursion_record.c | ||
trace_sched_switch.c | ||
trace_sched_wakeup.c | ||
trace_selftest.c | ||
trace_selftest_dynamic.c | ||
trace_seq.c | ||
trace_stack.c | ||
trace_stat.c | ||
trace_stat.h | ||
trace_synth.h | ||
trace_syscalls.c | ||
trace_uprobe.c | ||
tracing_map.c | ||
tracing_map.h |