linux/tools/perf/util
Ingo Molnar cdd6c482c9 perf: Do the big rename: Performance Counters -> Performance Events
Bye-bye Performance Counters, welcome Performance Events!

In the past few months the perfcounters subsystem has grown out its
initial role of counting hardware events, and has become (and is
becoming) a much broader generic event enumeration, reporting, logging,
monitoring, analysis facility.

Naming its core object 'perf_counter' and naming the subsystem
'perfcounters' has become more and more of a misnomer. With pending
code like hw-breakpoints support the 'counter' name is less and
less appropriate.

All in one, we've decided to rename the subsystem to 'performance
events' and to propagate this rename through all fields, variables
and API names. (in an ABI compatible fashion)

The word 'event' is also a bit shorter than 'counter' - which makes
it slightly more convenient to write/handle as well.

Thanks goes to Stephane Eranian who first observed this misnomer and
suggested a rename.

User-space tooling and ABI compatibility is not affected - this patch
should be function-invariant. (Also, defconfigs were not touched to
keep the size down.)

This patch has been generated via the following script:

  FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')

  sed -i \
    -e 's/PERF_EVENT_/PERF_RECORD_/g' \
    -e 's/PERF_COUNTER/PERF_EVENT/g' \
    -e 's/perf_counter/perf_event/g' \
    -e 's/nb_counters/nb_events/g' \
    -e 's/swcounter/swevent/g' \
    -e 's/tpcounter_event/tp_event/g' \
    $FILES

  for N in $(find . -name perf_counter.[ch]); do
    M=$(echo $N | sed 's/perf_counter/perf_event/g')
    mv $N $M
  done

  FILES=$(find . -name perf_event.*)

  sed -i \
    -e 's/COUNTER_MASK/REG_MASK/g' \
    -e 's/COUNTER/EVENT/g' \
    -e 's/\<event\>/event_id/g' \
    -e 's/counter/event/g' \
    -e 's/Counter/Event/g' \
    $FILES

... to keep it as correct as possible. This script can also be
used by anyone who has pending perfcounters patches - it converts
a Linux kernel tree over to the new naming. We tried to time this
change to the point in time where the amount of pending patches
is the smallest: the end of the merge window.

Namespace clashes were fixed up in a preparatory patch - and some
stylistic fallout will be fixed up in a subsequent patch.

( NOTE: 'counters' are still the proper terminology when we deal
  with hardware registers - and these sed scripts are a bit
  over-eager in renaming them. I've undone some of that, but
  in case there's something left where 'counter' would be
  better than 'event' we can undo that on an individual basis
  instead of touching an otherwise nicely automated patch. )

Suggested-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-21 14:28:04 +02:00
..
include perf report: Adjust column width to the values sampled 2009-07-11 10:24:11 +02:00
abspath.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
alias.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
cache.h perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
callchain.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
callchain.h perf tools: Factorize the map helpers 2009-08-12 12:37:37 +02:00
color.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
color.h perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
config.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
ctype.c perf_counter tools: Add and use isprint() 2009-06-18 09:46:00 +02:00
debug.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
debug.h perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
environment.c
event.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
exec_cmd.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
exec_cmd.h
generate-cmdlist.sh
header.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
header.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
help.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
help.h perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
levenshtein.c
levenshtein.h
map.c perf tools: Factorize the map helpers 2009-08-12 12:37:37 +02:00
module.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
module.h perf_counter tools: Add infrastructure to support loading of kernel module symbols 2009-07-02 08:42:20 +02:00
pager.c perf_counter tools: Remove dead code 2009-06-27 06:06:39 +02:00
parse-events.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
parse-events.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
parse-options.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
parse-options.h perf: Allow perf utilities to have "callback" options without arguments 2009-09-19 11:42:11 +02:00
path.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
PERF-VERSION-GEN
quote.c perf: Fix read buffer overflow 2009-08-04 11:09:56 +02:00
quote.h perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
run-command.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
run-command.h perf_counter tools: Remove dead code 2009-06-27 06:06:39 +02:00
sigchain.c
sigchain.h
strbuf.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
strbuf.h perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
string.c perf_counter tools: Define and use our own u64, s64 etc. definitions 2009-06-19 18:25:47 +02:00
string.h perf_counter: Detect debugfs location 2009-07-22 18:05:57 +02:00
strlist.c strlist: Introduce strlist__entry and strlist__nr_entries methods 2009-07-11 19:20:25 +02:00
strlist.h strlist: Introduce strlist__entry and strlist__nr_entries methods 2009-07-11 19:20:25 +02:00
svghelper.c perf util: SVG performance improvements 2009-09-20 19:37:36 +02:00
svghelper.h perf util: Make the timechart SVG width dynamic 2009-09-20 19:37:35 +02:00
symbol.c perf tools: Librarize trace_event() helper 2009-08-16 23:06:45 +02:00
symbol.h perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
thread.c perf sched: Add 'perf sched map' scheduling event map printout 2009-09-16 16:41:30 +02:00
thread.h perf sched: Add 'perf sched map' scheduling event map printout 2009-09-16 16:41:30 +02:00
trace-event-info.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
trace-event-parse.c perf tools: Implement counter output multiplexing 2009-09-14 15:45:11 +02:00
trace-event-read.c perf sched: Display time in milliseconds, reorganize output 2009-09-13 10:22:44 +02:00
trace-event.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
types.h perf_counter tools: Rework the file format 2009-06-25 21:39:04 +02:00
usage.c perf top: Fall back to cpu-clock-tick hrtimer sampling if no cycle counter available 2009-06-07 17:31:52 +02:00
util.h Merge branch 'perfcounters/tracing' into perfcounters/core 2009-08-31 10:03:27 +02:00
values.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
values.h perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
wrapper.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00