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* perf trace: Don't use pager if scriptingTom Zanussi2010-03-041-1/+2
| | | | | | | | | | | It's useful for paging through raw traces, but just gets in the way when scripting. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1267599873-8193-3-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace/scripting: Remove extraneous header readTom Zanussi2010-03-041-1/+0
| | | | | | | | | | | perf_header__read() is already done in perf_session__open(), so remove it from the script gen case. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1267599873-8193-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf/scripts: Add Python scripting engineTom Zanussi2010-02-251-0/+1
| | | | | | | | | | | | | | Add base support for Python scripting to perf trace. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-6-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* perf/scripts: Fix supported language listing optionTom Zanussi2010-02-231-2/+2
| | | | | | | | | | | | | | | | | | | 'perf trace -s list' prints a list of the supported scripting languages. One problem with it is that it falls through and prints the trace as well. The use of 'list' for this also makes it easy to confuse with 'perf trace -l', used for listing available scripts. So change 'perf trace -s list' to 'perf trace -s lang' and fixes the fall-through problem. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
* perf trace: Add -i option for choosing input fileHitoshi Mitake2010-01-271-0/+2
| | | | | | | | | | | | perf trace lacks -i option for choosing input file. This patch adds it to perf trace. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1264167929-6741-1-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Don't cast RIP to pointersArnaldo Carvalho de Melo2010-01-161-5/+2
| | | | | | | | | | | | | Since they can come from another architecture with bigger pointers, i.e. processing a 64-bit perf.data on a 32-bit arch. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1263478990-8200-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Remove redundant prefix & suffix from perf_event_opsArnaldo Carvalho de Melo2009-12-281-2/+2
| | | | | | | | | | | | | Since now all that we have are perf event handlers, leave just the name of the event. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1261957026-15580-9-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Remove sample_type_check from event_opsArnaldo Carvalho de Melo2009-12-281-1/+3
| | | | | | | | | | | | | | | | | | | | This is really something tools need to do before asking for the events to be processed, leaving perf_session__process_events to do just that, process events. Also add a msg parameter to perf_session__has_traces() so that the right message can be printed, fixing a regression added by me in the previous cset (right timechart message) and also fixing 'perf kmem', that was not asking if 'perf kmem record' was ran. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1261957026-15580-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Share the common trace sample_check routine as ↵Arnaldo Carvalho de Melo2009-12-281-13/+1
| | | | | | | | | | | | perf_session__has_traces Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1261957026-15580-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf diff: Fix usage array, it must end with a NULL entryArnaldo Carvalho de Melo2009-12-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Fixing this: [acme@doppio linux-2.6-tip]$ perf diff --hell Error: unknown option `hell' usage: perf diff [<options>] [old_file] [new_file] Segmentation fault [acme@doppio linux-2.6-tip]$ Also go over the other such arrays to check if they all were OK, they are, but there were some minor changes to do like making one static and renaming another to match the command it refers to. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1261161358-23959-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf symbols: Adopt the strlists for dso, commArnaldo Carvalho de Melo2009-12-161-2/+2
| | | | | | | | | | | | Will be used in perf diff too. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260914682-29652-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf symbols: Make symbol_conf globalArnaldo Carvalho de Melo2009-12-161-2/+2
| | | | | | | | | | | | | This simplifies a lot of functions, less stuff to be done by tool writers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260914682-29652-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace/scripting: Add 'record' and 'report' optionsTom Zanussi2009-12-151-1/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow scripts to be recorded/executed by simply specifying the script root name (the script name minus extension) along with 'record' or 'report' to 'perf trace'. The script names shown by 'perf trace -l' can be directly used to run the command-line contained within the corresponding '-record' and '-report' versions of scripts in the scripts/*/bin directories. For example, to record the trace data needed to run the wakeup-latency.pl script, the user can easily find the name of the corresponding script from the script list and invoke it using 'perf trace record', without having to remember the details of how to do the same thing using the lower-level perf trace command-line options: root@tropicana:~# perf trace -l List of available trace scripts: workqueue-stats workqueue stats (ins/exe/create/destroy) wakeup-latency system-wide min/max/avg wakeup latency rw-by-file <comm> r/w activity for a program, by file check-perf-trace useless but exhaustive test script rw-by-pid system-wide r/w activity root@tropicana:~# perf trace record wakeup-latency ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.296 MB perf.data (~12931 samples) ] To run the wakeup-latency.pl script using the captured data, change 'record' to 'report' in the command-line: root@tropicana:~# perf trace report wakeup-latency wakeup_latency stats: total_wakeups: 65 avg_wakeup_latency (ns): 22417 min_wakeup_latency (ns): 3470 max_wakeup_latency (ns): 223311 perf trace Perl script stopped If the script takes options, thay can be simply added to the end of the 'report' invocation: root@tropicana:~# perf trace record rw-by-file ^C[ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.782 MB perf.data (~34171 samples) ] root@tropicana:~# perf trace report rw-by-file perf file read counts for perf: fd # reads bytes_requested ------ ---------- ----------- 122 1934 1980416 120 1 32 file write counts for perf: fd # writes bytes_written ------ ---------- ----------- 3 4006 280568 perf trace Perl script stopped Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1260867220-15699-6-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace/scripting: List available scriptsTom Zanussi2009-12-151-1/+198
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lists the available perf trace scripts, one per line e.g.: root@tropicana:~# perf trace -l List of available trace scripts: workqueue-stats workqueue stats (ins/exe/create/destroy) wakeup-latency system-wide min/max/avg wakeup latency rw-by-file <comm> r/w activity for a program, by file check-perf-trace useless but exhaustive test script rw-by-pid system-wide r/w activity To be consistent with the other listing options in perf, the current latency trace option was changed to '-L', and '-l' is now used to access the script listing as: To create the list, it searches each scripts/*/bin directory for files ending with "-report" and reads information found in certain comment lines contained in those shell scripts: - if the comment line starts with "description:", the rest of the line is used as a 'half-line' description. To keep each line in the list to a single line, the description should be limited to 40 characters (the rest of the line contains the script name and args) - if the comment line starts with "args:", the rest of the line names the args the script supports. Required args should be surrounded by <> brackets, optional args by [] brackets. The current scripts in scripts/perl/bin have also been updated with description: and args: comments. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1260867220-15699-5-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace/scripting: Add support for script argsTom Zanussi2009-12-151-12/+7
| | | | | | | | | | | | | | | One oversight of the original scripting_ops patch was a lack of support for passing args to handler scripts. This adds argc/argv to the start_script() scripting_op, and changes the rw-by-file script to take 'comm' arg rather than the 'perf' value currently hard-coded. It also takes the opportunity to do some related minor cleanup. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org LKML-Reference: <1260867220-15699-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Event statistics also are per sessionArnaldo Carvalho de Melo2009-12-151-1/+1
| | | | | | | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260810361-22828-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Adopt the sample_type variableArnaldo Carvalho de Melo2009-12-141-8/+4
| | | | | | | | | | | | | All tools had copies, and perf diff would have to specify a sample_type_check method just for copying it. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260807780-19377-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Move the hist_entries rb tree to perf_sessionArnaldo Carvalho de Melo2009-12-141-1/+1
| | | | | | | | | | | | | As we'll need to sort multiple times for multiple perf sessions, so that we can then do a diff. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260803439-16783-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Move kmaps to perf_sessionArnaldo Carvalho de Melo2009-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | There is still some more work to do to disentangle map creation from DSO loading, but this happens only for the kernel, and for the early adopters of perf diff, where this disentanglement matters most, we'll be testing different kernels, so no problem here. Further clarification: right now we create the kernel maps for the various modules and discontiguous kernel text maps when loading the DSO, we should do it as a two step process, first creating the maps, for multiple mappings with the same DSO store, then doing the dso load just once, for the first hit on one of the maps sharing this DSO backing store. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Move the global threads list to perf_sessionArnaldo Carvalho de Melo2009-12-141-2/+2
| | | | | | | | | | | | | | | So that we can process two perf.data files. We still need to add a O_MMAP mode for perf_session so that we can do all the mmap stuff in it. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Reduce the number of parms to perf_session__process_eventsArnaldo Carvalho de Melo2009-12-141-2/+1
| | | | | | | | | | | | | | | By having the cwd/cwdlen in the perf_session struct and full_paths in perf_event_ops. Now its just a matter of passing the ops. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-4-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Register the idle thread in perf_session__process_eventsArnaldo Carvalho de Melo2009-12-141-1/+0
| | | | | | | | | | | | | No need for all tools to register it and then immediately call perf_session__process_events. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Ditch register_perf_file_handlerArnaldo Carvalho de Melo2009-12-141-5/+3
| | | | | | | | | | | | | | | | Pass the event_ops to perf_session__process_events instead. Also move the event_ops definition to session.h, starting to move things around to their right place, trimming the many unneeded headers we have. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf session: Pass the perf_session to the event handling operationsArnaldo Carvalho de Melo2009-12-141-13/+10
| | | | | | | | | | | | They will need it to get the right threads list, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260741029-4430-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Introduce perf_session classArnaldo Carvalho de Melo2009-12-121-8/+12
| | | | | | | | | | | | | | | | | That does all the initialization boilerplate, opening the file, reading the header, checking if it is valid, etc. And that will as well have the threads list, kmap (now) global variable, etc, so that we can handle two (or more) perf.data files describing sessions to compare. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260573842-19720-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf: Make common SAMPLE_EVENT parserOGAWA Hirofumi2009-12-061-33/+15
| | | | | | | | | | | | | | | | | | | | | | Currently, sample event data is parsed for each commands, and it is assuming that the data is not including other data. (E.g. timechart, trace, etc. can't parse the event if it has PERF_SAMPLE_CALLCHAIN) So, even if we record the superset data for multiple commands at a time, commands can't parse. etc. To fix it, this makes common sample event parser, and use it to parse sample event correctly. (PERF_SAMPLE_READ is unsupported for now though, it seems to be not using.) Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <87hbs48imv.fsf@devron.myhome.or.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf scripting: Fix buildIngo Molnar2009-11-281-0/+2
| | | | | | | | | | Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace: Add Perl scripting supportTom Zanussi2009-11-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement trace_scripting_ops to make Perl a supported perf trace scripting language. Additionally adds code that allows Perl trace scripts to access the 'flag' and 'symbolic' (__print_flags(), __print_symbolic()) field information parsed from the trace format files. Also adds the Perl implementation of the generate_script() trace_scripting_op, which creates a ready-to-run perf trace Perl script based on existing trace data. Scripts generated by this implementation print out all the fields for each event mentioned in perf.data (and will detect and generate the proper scripting code for 'flag' and 'symbolic' fields), and will additionally generate handlers for the special 'trace_unhandled', 'trace_begin' and 'trace_end' handlers. Script authors can simply remove the printing code to implement their own custom event handling. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: anton@samba.org Cc: hch@infradead.org LKML-Reference: <1259133352-23685-4-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace: Add scripting opsTom Zanussi2009-11-281-5/+250
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds an interface, scripting_ops, that when implemented for a particular scripting language enables built-in support for trace stream processing using that language. The interface is designed to enable full-fledged language interpreters to be embedded inside the perf executable and thereby make the full capabilities of the supported languages available for trace processing. See below for details on the interface. This patch also adds a couple command-line options to 'perf trace': The -s option option is used to specify the script to be run. Script names that can be used with -s take the form: [language spec:]scriptname[.ext] Scripting languages register a set of 'language specs' that can be used to specify scripts for the registered languages. The specs can be used either as prefixes or extensions. If [language spec:] is used, the script is taken as a script of the matching language regardless of any extension it might have. If [language spec:] is not used, [.ext] is used to look up the language it corresponds to. Language specs are case insensitive. e.g. Perl scripts can be specified in the following ways: Perl:scriptname pl:scriptname.py # extension ignored PL:scriptname scriptname.pl scriptname.perl The -g [language spec] option gives users an easy starting point for writing scripts in the specified language. Scripting support for a particular language can implement a generate_script() scripting op that outputs an empty (or near-empty) set of handlers for all the events contained in a given perf.data trace file - this option gives users a direct way to access that. Adding support for a scripting language --------------------------------------- The main thing that needs to be done do add support for a new language is to implement the scripting_ops interface: It consists of the following four functions: start_script() stop_script() process_event() generate_script() start_script() is called before any events are processed, and is meant to give the scripting language support an opportunity to set things up to receive events e.g. create and initialize an instance of a language interpreter. stop_script() is called after all events are processed, and is meant to give the scripting language support an opportunity to clean up e.g. destroy the interpreter instance, etc. process_event() is called once for each event and takes as its main parameter a pointer to the binary trace event record to be processed. The implementation is responsible for picking out the binary fields from the event record and sending them to the script handler function associated with that event e.g. a function derived from the event name it's meant to handle e.g. 'sched::sched_switch()'. The 'format' information for trace events can be used to parse the binary data and map it into a form usable by a given scripting language; see the Perl implemention in subsequent patches for one possible way to leverage the existing trace format parsing code in perf and map that info into specific scripting language types. generate_script() should generate a ready-to-run script for the current set of events in the trace, preferably with bodies that print out every field for each event. Again, look at the Perl implementation for clues as to how that can be done. This is an optional, but very useful op. Support for a given language should also add a language-specific setup function and call it from setup_scripting(). The language-specific setup function associates the the scripting ops for that language with one or more 'language specifiers' (see below) using script_spec_register(). When a script name is specified on the command line, the scripting ops associated with the specified language are used to instantiate and use the appropriate interpreter to process the trace stream. In general, it should be relatively easy to add support for a new language, especially if the language implementation supports an interface allowing an interpreter to be 'embedded' inside another program (in this case the containing program will be 'perf trace'). If so, it should be relatively straightforward to translate trace events into invocations of user-defined script functions where e.g. the function name corresponds to the event type and the function parameters correspond to the event fields. The event and field type information exported by the event tracing infrastructure (via the event 'format' files) should be enough to parse and send any piece of trace data to the user script. The easiest way to see how this can be done would be to look at the Perl implementation contained in perf/util/trace-event-perl.c/.h. There are a couple of other things that aren't covered by the scripting_ops or setup interface and are technically optional, but should be implemented if possible. One of these is support for 'flag' and 'symbolic' fields e.g. being able to use more human-readable values such as 'GFP_KERNEL' or HI/BLOCK_IOPOLL/TASKLET in place of raw flag values. See the Perl implementation to see how this can be done. The other thing is support for 'calling back' into the perf executable to access e.g. uncommon fields not passed by default into handler functions, or any metadata the implementation might want to make available to users via the language interface. Again, see the Perl implementation for examples. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: anton@samba.org Cc: hch@infradead.org LKML-Reference: <1259133352-23685-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Reorganize event processing routines, lotsa dups killedArnaldo Carvalho de Melo2009-11-271-35/+5
| | | | | | | | | | | | | | | | | | | | | | | | While implementing event__preprocess_sample, that will do all of the symbol lookup in one convenient function, I noticed that util/process_event.[ch] were not being used at all, then started looking if there were other functions that could be shared and... All those functions really don't need to receive offset + head, the only thing they did was common to all of them, so do it at one place instead. Stats about number of each type of event processed now is done in a central place. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: John Kacur <jkacur@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1259346563-12568-11-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf symbols: Simplify symbol machinery setupArnaldo Carvalho de Melo2009-11-241-1/+1
| | | | | | | | | | | | | | | | | | | | | And also express its configuration toggles via a struct. Now all one has to do is to call symbol__init(NULL) if the defaults are OK, or pass a struct symbol_conf pointer with the desired configuration. If a tool uses kernel_maps__find_symbol() to look at the kernel and modules mappings for a symbol but didn't call symbol__init() first, that will generate a one time warning too, alerting the subcommand developer that symbol__init() must be called. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1259071517-3242-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf symbols: Look for vmlinux in more placesArnaldo Carvalho de Melo2009-11-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | Now that we can check the buildid to see if it really matches, this can be done safely: vmlinux /boot/vmlinux /boot/vmlinux-<uts.release> /lib/modules/<uts.release>/build/vmlinux /usr/lib/debug/lib/modules/%s/vmlinux More can be added - if you know about distros that put the vmlinux somewhere else please let us know. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1259001550-8194-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Simplify the symbol priv area mechanismArnaldo Carvalho de Melo2009-11-021-1/+1
| | | | | | | | | | | | | | | Before we were storing this in the DSO, but in fact this is a property of the 'symbol' class, not something that will vary among DSOs, so move it to a global variable and initialize it using the existing symbol__init routine. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1256927305-4628-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Unify debug messages mechanismsArnaldo Carvalho de Melo2009-10-231-2/+2
| | | | | | | | | | | | | | | We were using eprintf in some places, that looks at a global 'verbose' level, and at other places passing a 'v' parameter to specify the verbosity level, unify it by introducing pr_{err,warning,debug,etc}, just like in the kernel. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1256153646-10097-1-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Move dereference after NULL testJulia Lawall2009-10-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | In each case, if the NULL test on thread is needed, then the dereference should be after the NULL test. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != \(x = E\|&x\) * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> LKML-Reference: <Pine.LNX.4.64.0910170842500.9213@ask.diku.dk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Add latency format to trace outputSteven Rostedt2009-10-151-0/+2
| | | | | | | | | | | | | | | | | Add the irqs disabled, preemption count, need resched, and other info that is shown in the latency format of ftrace. # perf trace -l perf-16457 2..s2. 53636.260344: kmem_cache_free: call_site=ffffffff811198f perf-16457 2..s2. 53636.264330: kmem_cache_free: call_site=ffffffff811198f perf-16457 2d.s4. 53636.300006: kmem_cache_free: call_site=ffffffff810d889 Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <20091014194400.076588953@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Move threads & last_match to threads.cArnaldo Carvalho de Melo2009-10-131-10/+3
| | | | | | | | | | | | This was just being copy'n'pasted all over. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <20091013141629.GD21809@ghostprotocols.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Unify perf.data mapping and events handlingFrederic Weisbecker2009-10-081-111/+18
| | | | | | | | | | | | | | | | | | | | | | This librarizes the perf.data file mapping and handling in various perf tools, roughly reducing the amount of code and fixing the places that mmap from beginning of the file whereas we want to mmap from the beginning of the data, leading to page fault because the mmap window is too small since the trace info are written in the file too. TODO: - convert perf timechart too Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arjan van de Ven <arjan@infradead.org> LKML-Reference: <20091007104729.GD5043@nowhere> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Merge trace.info content into perf.dataFrederic Weisbecker2009-10-071-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This drops the trace.info file and move its contents into the common perf.data file. This is done by creating a new trace_info section into this file. A user of perf headers needs to call perf_header__set_trace_info() to save the trace meta informations into the perf.data file. A file created by perf after his patch is unsupported by previous version because the size of the headers have increased. That said, it's two new fields that have been added in the end of the headers, and those could be ignored by previous versions if they just handled the dynamic header size and then ignore the unknow part. The offsets guarantee the compatibility. We'll do a -stable fix for that. But current previous versions handle the header size using its static size, not dynamic, then it's not backward compatible with trace records. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20091006213643.GA5343@nowhere> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Start the perf.data mapping at data offset in perf traceFrederic Weisbecker2009-10-071-1/+6
| | | | | | | | | | | | | | | | | | | | | | | Currently, we are mapping perf.data in the beginning of the file and use the data offset as a buffer offset. This may exceed the mapping area if the data offset is upper than page_size * mmap_window and result in a page fault (thing that happen if we merge trace.info in perf.data). Instead, let's start the mapping in the page that matches our data offset. v2: Drop a junk from another patch (trace_report() removal) Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <1254856886-10348-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'perf/urgent' into perf/coreIngo Molnar2009-10-061-6/+0
|\ | | | | | | | | | | Merge reason: Upcoming patch is dependent on a fix in perf/urgent. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf trace: Remove unused code in builtin-trace.cTom Zanussi2009-10-061-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And some minor whitespace cleanup. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: rostedt@goodmis.org Cc: lizf@cn.fujitsu.com Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1254808849-7829-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf trace: Remove dead codeArnaldo Carvalho de Melo2009-09-301-28/+0
|/ | | | | | | | | | | | Several variables are not used at all, cut'n'paste leftovers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mike Galbraith <efault@gmx.de> Cc: "H. Peter Anvin" <hpa@zytor.com> LKML-Reference: <20090928200818.GF3361@ghostprotocols.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf: Do the big rename: Performance Counters -> Performance EventsIngo Molnar2009-09-211-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* perf trace: Fix parsing of perf.dataIngo Molnar2009-09-031-0/+1
| | | | | | | | | | | | | | | | We started parsing perf.data at head 0. This caused -D to segfault and it could possibly also case incorrect trace entries to be displayed. Parse it at data_offset instead. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace: Sample timestamps as wellIngo Molnar2009-09-031-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: perf-21082 [013] 0.000000: sched_wakeup_new: task perf:21083 [120] success=1 [015] perf-21082 [013] 0.000000: sched_migrate_task: task perf:21082 [120] from: 13 to: 15 perf-21082 [013] 0.000000: sched_process_fork: parent perf:21082 child perf:21083 true-21083 [015] 0.000000: sched_wakeup: task migration/15:33 [0] success=1 [015] perf-21082 [013] 0.000000: sched_switch: task perf:21082 [120] (S) ==> swapper:0 [140] true-21083 [015] 0.000000: sched_switch: task perf:21083 [120] (R) ==> migration/15:33 [0] true-21083 [011] 0.000000: sched_process_exit: task true:21083 [120] After: perf-21082 [013] 14674.797613: sched_wakeup_new: task perf:21083 [120] success=1 [015] perf-21082 [013] 14674.797506: sched_migrate_task: task perf:21082 [120] from: 13 to: 15 perf-21082 [013] 14674.797610: sched_process_fork: parent perf:21082 child perf:21083 true-21083 [015] 14674.797725: sched_wakeup: task migration/15:33 [0] success=1 [015] perf-21082 [013] 14674.797722: sched_switch: task perf:21082 [120] (S) ==> swapper:0 [140] true-21083 [015] 14674.797729: sched_switch: task perf:21083 [120] (R) ==> migration/15:33 [0] true-21083 [011] 14674.798159: sched_process_exit: task true:21083 [120] Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace: Sample the CPU tooIngo Molnar2009-09-021-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sample, record, parse and print the CPU field - it had all zeroes before. Before (watch the second column, the CPU values): perf-32685 [000] 0.000000: sched_wakeup_new: task perf:32686 [120] success=1 [011] perf-32685 [000] 0.000000: sched_migrate_task: task perf:32685 [120] from: 1 to: 11 perf-32685 [000] 0.000000: sched_process_fork: parent perf:32685 child perf:32686 true-32686 [000] 0.000000: sched_wakeup: task migration/11:25 [0] success=1 [011] true-32686 [000] 0.000000: sched_wakeup: task distccd:12793 [125] success=1 [015] true-32686 [000] 0.000000: sched_wakeup: task distccd:12793 [125] success=1 [015] perf-32685 [000] 0.000000: sched_switch: task perf:32685 [120] (S) ==> swapper:0 [140] true-32686 [000] 0.000000: sched_switch: task perf:32686 [120] (R) ==> migration/11:25 [0] true-32686 [000] 0.000000: sched_switch: task perf:32686 [120] (R) ==> distccd:12793 [125] true-32686 [000] 0.000000: sched_switch: task true:32686 [120] (R) ==> distccd:12793 [125] true-32686 [000] 0.000000: sched_process_exit: task true:32686 [120] true-32686 [000] 0.000000: sched_stat_wait: task: distccd:12793 wait: 6767985949080 [ns] true-32686 [000] 0.000000: sched_stat_wait: task: distccd:12793 wait: 6767986139446 [ns] true-32686 [000] 0.000000: sched_stat_sleep: task: distccd:12793 sleep: 132844 [ns] true-32686 [000] 0.000000: sched_stat_sleep: task: distccd:12793 sleep: 131724 [ns] After: perf-32685 [001] 0.000000: sched_wakeup_new: task perf:32686 [120] success=1 [011] perf-32685 [001] 0.000000: sched_migrate_task: task perf:32685 [120] from: 1 to: 11 perf-32685 [001] 0.000000: sched_process_fork: parent perf:32685 child perf:32686 true-32686 [011] 0.000000: sched_wakeup: task migration/11:25 [0] success=1 [011] true-32686 [015] 0.000000: sched_wakeup: task distccd:12793 [125] success=1 [015] true-32686 [015] 0.000000: sched_wakeup: task distccd:12793 [125] success=1 [015] perf-32685 [001] 0.000000: sched_switch: task perf:32685 [120] (S) ==> swapper:0 [140] true-32686 [011] 0.000000: sched_switch: task perf:32686 [120] (R) ==> migration/11:25 [0] true-32686 [015] 0.000000: sched_switch: task perf:32686 [120] (R) ==> distccd:12793 [125] true-32686 [015] 0.000000: sched_switch: task true:32686 [120] (R) ==> distccd:12793 [125] true-32686 [015] 0.000000: sched_process_exit: task true:32686 [120] true-32686 [015] 0.000000: sched_stat_wait: task: distccd:12793 wait: 6767985949080 [ns] true-32686 [015] 0.000000: sched_stat_wait: task: distccd:12793 wait: 6767986139446 [ns] true-32686 [015] 0.000000: sched_stat_sleep: task: distccd:12793 sleep: 132844 [ns] true-32686 [015] 0.000000: sched_stat_sleep: task: distccd:12793 sleep: 131724 [ns] So we can now see how this workload migrated between CPUs. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Resolve idle thread cmdline for perf traceFrederic Weisbecker2009-08-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | The cmd-trace tool used the cmdline file and resolved the idle thread using a hardcoded check for the 0 task pid. Now we have a centralized way to do that from perf using register_idle_thread() API. Before: :0-0 [000] 0.000000: irq_handler_entry: irq=0 handler=name :0-0 [000] 0.000000: irq_handler_entry: irq=0 handler=name After: [idle]-0 [000] 0.000000: irq_handler_entry: irq=0 handler=name [idle]-0 [000] 0.000000: irq_handler_entry: irq=0 handler=name Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1251693921-6579-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf trace: Add OPT_END to option array of perf-traceMasami Hiramatsu2009-08-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add OPT_END to option array of perf-trace for fixing a SEGV bug when showing perf-trace help message. Without this patch; ./perf trace -h usage: perf trace [<options>] <command> -D, --dump-raw-trace dump raw trace in ASCII -v, --verbose be more verbose (show symbol address, etc) -f, Segmentation fault With this patch: ./perf trace -h usage: perf trace [<options>] <command> -D, --dump-raw-trace dump raw trace in ASCII -v, --verbose be more verbose (show symbol address, etc) Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Zhaolei <zhaolei@cn.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <20090821185603.11039.62109.stgit@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Warn while running perf trace without sampleFrederic Weisbecker2009-08-181-0/+4
| | | | | | | | | | | | | | When a user runs perf trace using an input with logged counters without PERF_SAMPLE_RAW attribute, warn by giving a nice tip. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1250543271-8383-2-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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