Changbin Du 85acbb21b9 tracing: Change the function format to display function names by perf ... Here is an example for this change. $ sudo perf record -e 'ftrace:function' --filter='ip==schedule' $ sudo perf report The output of perf before this patch: \# Samples: 100 of event 'ftrace:function' \# Event count (approx.): 100 \# \# Overhead Trace output \# ........ ...................................... \# 51.00% ffffffff81f6aaa0 <-- ffffffff81158e8d 29.00% ffffffff81f6aaa0 <-- ffffffff8116ccb2 8.00% ffffffff81f6aaa0 <-- ffffffff81f6f2ed 4.00% ffffffff81f6aaa0 <-- ffffffff811628db 4.00% ffffffff81f6aaa0 <-- ffffffff81f6ec5b 2.00% ffffffff81f6aaa0 <-- ffffffff81f6f21a 1.00% ffffffff81f6aaa0 <-- ffffffff811b04af 1.00% ffffffff81f6aaa0 <-- ffffffff8143ce17 After this patch: \# Samples: 36 of event 'ftrace:function' \# Event count (approx.): 36 \# \# Overhead Trace output \# ........ ............................................ \# 38.89% schedule <-- schedule_hrtimeout_range_clock 27.78% schedule <-- worker_thread 13.89% schedule <-- schedule_timeout 11.11% schedule <-- smpboot_thread_fn 5.56% schedule <-- rcu_gp_kthread 2.78% schedule <-- exit_to_usermode_loop Link: http://lkml.kernel.org/r/20190209161919.32350-1-changbin.du@gmail.com Signed-off-by: Changbin Du <changbin.du@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2019-02-11 14:53:43 -05:00
..
blktrace.c	blkcg: remove bio->bi_css and instead use bio->bi_blkg	2018-12-07 22:26:37 -07:00
bpf_trace.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
fgraph.c	tracing: Fix ftrace_graph_get_ret_stack() to use task and not current	2018-12-22 08:21:03 -05:00
ftrace_internal.h	ftrace: Create new ftrace_internal.h header	2018-12-08 20:54:06 -05:00
ftrace.c	Tracing changes for v4.21:	2018-12-31 11:46:59 -08:00
Kconfig	tracing: Use dyn_event framework for synthetic events	2018-12-08 20:54:10 -05:00
Makefile	tracing: Add unified dynamic event framework	2018-12-08 20:54:09 -05:00
power-traces.c
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c	ring-buffer: Remove unused function ring_buffer_page_len()	2019-02-06 11:58:33 -05:00
rpm-traces.c
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_dynevent.c	tracing: Add generic event-name based remove event method	2018-12-10 12:22:44 -05:00
trace_dynevent.h	tracing: Add unified dynamic event framework	2018-12-08 20:54:09 -05:00
trace_entries.h	tracing: Change the function format to display function names by perf	2019-02-11 14:53:43 -05:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c	tracing: Add comment to predicate_parse() about "&&" or "||"	2019-02-06 11:56:19 -05:00
trace_events_hist.c	tracing: Have the historgram use the result of str_has_prefix() for len of prefix	2018-12-22 22:52:09 -05:00
trace_events_trigger.c	tracing: Fix memory leak in set_trigger_filter()	2018-12-11 13:50:19 -05:00
trace_events.c	tracing: Use str_has_prefix() instead of using fixed sizes	2018-12-22 22:51:54 -05:00
trace_export.c
trace_functions_graph.c	tracing: Put a margin between flags and duration for wakeup tracers	2019-02-06 11:56:19 -05:00
trace_functions.c
trace_hwlat.c
trace_irqsoff.c	function_graph: Support displaying relative timestamp	2019-02-06 11:56:18 -05:00
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing/kprobes: Fix NULL pointer dereference in trace_kprobe_create()	2019-01-15 11:33:45 -05:00
trace_mmiotrace.c
trace_nop.c
trace_output.c	tracing: Simplify printf'ing in seq_print_sym	2018-12-22 08:21:06 -05:00
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe_tmpl.h
trace_probe.c	tracing: Annotate implicit fall through in parse_probe_arg()	2019-02-06 11:56:18 -05:00
trace_probe.h	tracing/kprobes: Use dyn_event framework for kprobe events	2018-12-08 20:54:09 -05:00
trace_sched_switch.c
trace_sched_wakeup.c	tracing: Show stacktrace for wakeup tracers	2019-02-06 11:56:19 -05:00
trace_selftest_dynamic.c
trace_selftest.c	fgraph: Add new fgraph_ops structure to enable function graph hooks	2018-12-08 20:54:07 -05:00
trace_seq.c
trace_stack.c	tracing: Use the return of str_has_prefix() to remove open coded numbers	2018-12-22 22:52:30 -05:00
trace_stat.c
trace_stat.h
trace_syscalls.c
trace_uprobe.c	tracing: Consolidate trace_add/remove_event_call back to the nolock functions	2018-12-10 12:22:10 -05:00
trace.c	Tracing changes for v4.21:	2018-12-31 11:46:59 -08:00
trace.h	function_graph: Support displaying relative timestamp	2019-02-06 11:56:18 -05:00
tracing_map.c
tracing_map.h