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2010-02-23perf/scripts: Move common code out of Perl-specific filesTom Zanussi
This stuff is needed by all scripting engines; move it from the Perl engine source to a more common place. 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: <1264580883-15324-4-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Fix bug in Util.pmTom Zanussi
Fix bogus calculation. 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: <1264580883-15324-3-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Fix supported language listing optionTom Zanussi
'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>
2010-02-21perf tools: Don't use parent comm if not set at fork timeArnaldo Carvalho de Melo
As the parent comm then is worthless, confusing users about the thread where the sample really happened, leading to think that the sample happened in the parent, not where it really happened, in the children of a thread for which a PERF_RECORD_COMM event was not received. 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: <1266627727-19715-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-21perf symbols: Fix up map end too on modular kernels with no modules installedArnaldo Carvalho de Melo
In 2161db9 we stopped failing when not finding modules when asked too, but then the kernel maps (just one, for vmlinux) wasn't having its ->end field correctly set up, so symbols were not being found for the vmlinux map because its range was 0-0. Reported-by: Ingo Molnar <mingo@elte.hu> 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: <1266702793-29434-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-08perf record: Fix existing process callgraph symbolaustin_zhang@linux.intel.com
When 'perf record -g' a existing process, even with debuginfo packages, still cannnot get symbol from 'perf report'. try: perf record -g -p `pidof xxx` -f perf report 68.26% :1181 b74870f2 [.] 0x000000b74870f2 | |--32.09%-- 0xb73b5b44 | 0xb7487102 | 0xb748a4e2 | 0xb748633d | 0xb73b41cd | 0xb73b4467 | 0xb747d531 The reason is: for existing process, in __cmd_record(), the pid is 0 rather than the existing process id. Signed-off-by: Austin Zhang <austin_zhang@linux.intel.com> Acked-by: 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: <4710.10.255.24.35.1265389362.squirrel@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-07perf top: Use address pattern in lookup_sym_sourceArnaldo Carvalho de Melo
Because we may have aliases, like __GI___strcoll_l in /lib64/libc-2.10.2.so that appears in objdump as: $ objdump --start-address=0x0000003715a86420 \ --stop-address=0x0000003715a872dc -dS /lib64/libc-2.10.2.so 0000003715a86420 <__strcoll_l>: 3715a86420: 55 push %rbp 3715a86421: 48 89 e5 mov %rsp,%rbp 3715a86424: 41 57 push %r15 [root@doppio linux-2.6-tip]# So look for the address exactly at the start of the line instead so that annotation can work for in these cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Kirill Smelkov <kirr@landau.phys.spbu.ru> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1265550376-12665-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-07perf top: Fix annotate for userspaceKirill Smelkov
First, for programs and prelinked libraries, annotate code was fooled by objdump output IPs (src->eip in the code) being wrongly converted to absolute IPs. In such case there were no conversion needed, but in src->eip = strtoull(src->line, NULL, 16); src->eip = map->unmap_ip(map, src->eip); // = eip + map->start - map->pgoff we were reading absolute address from objdump (e.g. 8048604) and then almost doubling it, because eip & map->start are approximately close for small programs. Needless to say, that later, in record_precise_ip() there was no matching with real runtime IPs. And second, like with `perf annotate` the problem with non-prelinked *.so was that we were doing rip -> objdump address conversion wrong. Also, because unlike `perf annotate`, `perf top` code does annotation based on absolute IPs for performance reasons(*), new helper for mapping objdump addresse to IP is introduced. (*) we get samples info in absolute IPs, and since we do lots of hit-testing on absolute IPs at runtime in record_precise_ip(), it's better to convert objdump addresses to IPs once and do no conversion at runtime. I also had to fix how objdump output is parsed (with hardcoded 8/16 characters format, which was inappropriate for ET_DYN dsos with small addresses like '4ac') Also note, that not all objdump output lines has associtated IPs, e.g. look at source lines here: 000004ac <my_strlen>: extern "C" int my_strlen(const char *s) 4ac: 55 push %ebp 4ad: 89 e5 mov %esp,%ebp 4af: 83 ec 10 sub $0x10,%esp { int len = 0; 4b2: c7 45 fc 00 00 00 00 movl $0x0,-0x4(%ebp) 4b9: eb 08 jmp 4c3 <my_strlen+0x17> while (*s) { ++len; 4bb: 83 45 fc 01 addl $0x1,-0x4(%ebp) ++s; 4bf: 83 45 08 01 addl $0x1,0x8(%ebp) So we mark them with eip=0, and ignore such lines in annotate lookup code. Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru> [ Note: one hunk of this patch was applied by Mike in 57d8188 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1265550376-12665-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf tools: Fix session init on non-modular kernelsIngo Molnar
perf top and perf record refuses to initialize on non-modular kernels: refuse to initialize: $ perf top -v map_groups__set_modules_path_dir: cannot open /lib/modules/2.6.33-rc6-tip-00586-g398dde3-dirty/ Cc: 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: <1265223128-11786-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf tools: Clean up O_LARGEFILE et al usageXiao Guangrong
Setting _FILE_OFFSET_BITS and using O_LARGEFILE, lseek64, etc, is redundant. Thanks H. Peter Anvin for pointing it out. So, this patch removes O_LARGEFILE, lseek64, etc. Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4B6A8972.3070605@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf annotate: Fix perf top module symbol annotationMike Galbraith
Signed-off-by: Mike Galbraith <efault@gmx.de> Cc: Kirill Smelkov <kirr@landau.phys.spbu.ru> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1265265106.6364.5.camel@marge.simson.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf top: Teach it to autolocate vmlinuxKirill Smelkov
By relying on logic in dso__load_kernel_sym(), we can automatically load vmlinux. The only thing which needs to be adjusted, is how --sym-annotate option is handled - now we can't rely on vmlinux been loaded until full successful pass of dso__load_vmlinux(), but that's not the case if we'll do sym_filter_entry setup in symbol_filter(). So move this step right after event__process_sample() where we know the whole dso__load_kernel_sym() pass is done. By the way, though conceptually similar `perf top` still can't annotate userspace - see next patches with fixes. Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1265223128-11786-9-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf annotate: Fix it for non-prelinked *.soKirill Smelkov
The problem was we were incorrectly calculating objdump addresses for sym->start and sym->end, look: For simple ET_DYN type DSO (*.so) with one function, objdump -dS output is something like this: 000004ac <my_strlen>: int my_strlen(const char *s) 4ac: 55 push %ebp 4ad: 89 e5 mov %esp,%ebp 4af: 83 ec 10 sub $0x10,%esp { i.e. we have relative-to-dso-mapping IPs (=RIP) there. For ET_EXEC type and probably for prelinked libs as well (sorry can't test - I don't use prelink) objdump outputs absolute IPs, e.g. 08048604 <zz_strlen>: extern "C" int zz_strlen(const char *s) 8048604: 55 push %ebp 8048605: 89 e5 mov %esp,%ebp 8048607: 83 ec 10 sub $0x10,%esp { So, if sym->start is always relative to dso mapping(*), we'll have to unmap it for ET_EXEC like cases, and leave as is for ET_DYN cases. (*) and it is - we've explicitely made it relative. Look for adjust_symbols handling in dso__load_sym() Previously we were always unmapping sym->start and for ET_DYN dsos resulting addresses were wrong, and so objdump output was empty. The end result was that perf annotate output for symbols from non-prelinked *.so had always 0.00% percents only, which is wrong. To fix it, let's introduce a helper for converting rip to objdump address, and also let's document what map_ip() and unmap_ip() do -- I had to study sources for several hours to understand it. Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1265223128-11786-8-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf tools: Adjust some verbosity levelsArnaldo Carvalho de Melo
Not to pollute too much 'perf annotate' debugging sessions. 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: <1265223128-11786-7-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf record: Stop intercepting events, use postprocessing to get build-idsArnaldo Carvalho de Melo
We want to stream events as fast as possible to perf.data, and also in the future we want to have splice working, when no interception will be possible. Using build_id__mark_dso_hit_ops to create the list of DSOs that back MMAPs we also optimize disk usage in the build-id cache by only caching DSOs that had hits. Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1265223128-11786-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf build-id: Move the routine to find DSOs with hits to the libArnaldo Carvalho de Melo
Because 'perf record' will have to find the build-ids in after we stop recording, so as to reduce even more the impact in the workload while we do the measurement. 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: <1265223128-11786-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf probe: Don't use a perf_session instance just to resolve symbolsArnaldo Carvalho de Melo
With the recent modifications done to untie the session and symbol layers, 'perf probe' now can use just the symbols layer. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf symbols: Ditch vdso global variableArnaldo Carvalho de Melo
We can check using strcmp, most DSOs don't start with '[' so the test is cheap enough and we had to test it there anyway since when reading perf.data files we weren't calling the routine that created this global variable and thus weren't setting it as "loaded", which was causing a bogus: Failed to open [vdso], continuing without symbols Message as the first line of 'perf report'. 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: <1265223128-11786-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf symbols: Fixup vsyscall mapsArnaldo Carvalho de Melo
While debugging a problem reported by Pekka Enberg by printing the IP and all the maps for a thread when we don't find a map for an IP I noticed that dso__load_sym needs to fixup these extra maps it creates to hold symbols in different ELF sections than the main kernel one. Now we're back showing things like: [root@doppio linux-2.6-tip]# perf report | grep vsyscall 0.02% mutt [kernel.kallsyms].vsyscall_fn [.] vread_hpet 0.01% named [kernel.kallsyms].vsyscall_fn [.] vread_hpet 0.01% NetworkManager [kernel.kallsyms].vsyscall_fn [.] vread_hpet 0.01% gconfd-2 [kernel.kallsyms].vsyscall_0 [.] vgettimeofday 0.01% hald-addon-rfki [kernel.kallsyms].vsyscall_fn [.] vread_hpet 0.00% dbus-daemon [kernel.kallsyms].vsyscall_fn [.] vread_hpet [root@doppio linux-2.6-tip]# Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1265223128-11786-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-04perf symbols: Remove perf_session usage in symbols layerArnaldo Carvalho de Melo
I noticed while writing the first test in 'perf regtest' that to just test the symbol handling routines one needs to create a perf session, that is a layer centered on a perf.data file, events, etc, so I untied these layers. This reduces the complexity for the users as the number of parameters to most of the symbols and session APIs now was reduced while not adding more state to all the map instances by only having data that is needed to split the kernel (kallsyms and ELF symtab sections) maps and do vmlinux relocation on the main kernel map. 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: <1265223128-11786-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-03perf tools: Use O_LARGEFILE to open perf data fileXiao Guangrong
Open perf data file with O_LARGEFILE flag since its size is easily larger that 2G. For example: # rm -rf perf.data # ./perf kmem record sleep 300 [ perf record: Woken up 0 times to write data ] [ perf record: Captured and wrote 3142.147 MB perf.data (~137282513 samples) ] # ll -h perf.data -rw------- 1 root root 3.1G ..... Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4B68F32A.9040203@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31perf lock: Clean up various detailsIngo Molnar
Fix up a few small stylistic details: - use consistent vertical spacing/alignment - remove line80 artifacts - group some global variables better - remove dead code Plus rename 'prof' to 'report' to make it more in line with other tools, and remove the line/file keying as we really want to use IPs like the other tools do. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: 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: <1264851813-8413-12-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31perf lock: Introduce new tool "perf lock", for analyzing lock statisticsHitoshi Mitake
Adding new subcommand "perf lock" to perf. I have a lot of remaining ToDos, but for now perf lock can already provide minimal functionality for analyzing lock statistics. 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: <1264851813-8413-12-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31perf: Add util/include/linuxhash.h to include hash.h of kernelHitoshi Mitake
linux/hash.h, hash header of kernel, is also useful for perf. util/include/linuxhash.h includes linux/hash.h, so we can use hash facilities (e.g. hash_long()) in perf now. 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: <1264851813-8413-3-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31perf tools: Add __data_loc supportHitoshi Mitake
This patch is required to test the next patch for perf lock. At 064739bc4b3d7f424b2f25547e6611bcf0132415 , support for the modifier "__data_loc" of format is added. But, when I wanted to parse format of lock_acquired (or some event else), raw_field_ptr() did not returned correct pointer. So I modified raw_field_ptr() like this patch. Then raw_field_ptr() works well. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Steven Rostedt <srostedt@redhat.com> LKML-Reference: <1264851813-8413-2-git-send-email-mitake@dcl.info.waseda.ac.jp> [ v3: fixed minor stylistic detail ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31Revert "perf record: Intercept all events"Hitoshi Mitake
This reverts commit f5a2c3dce03621b55f84496f58adc2d1a87ca16f. This patch is required for making "perf lock rec" work. The commit f5a2c3dce0 changes write_event() of builtin-record.c . And changed write_event() sometimes doesn't stop with perf lock rec. 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> [ that commit also causes perf record to not be Ctrl-C-able, and it's concetually wrong to parse the data at record time (unconditionally - even when not needed), as we eventually want to be able to do zero-copy recording, at least for non-archive recordings. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29perf: Ignore perf-archive temp fileJohn Kacur
Tell git to ignore perf-archive. Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1264633557-17597-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29tools/perf/perf.c: Clean up trivial style issuesThiago Farina
Checked with: ./../scripts/checkpatch.pl --terse --file perf.c perf.c: 51: ERROR: open brace '{' following function declarations go on the next line perf.c: 73: ERROR: "foo*** bar" should be "foo ***bar" perf.c:112: ERROR: space prohibited before that close parenthesis ')' perf.c:127: ERROR: space prohibited before that close parenthesis ')' perf.c:171: ERROR: "foo** bar" should be "foo **bar" perf.c:213: ERROR: "(foo*)" should be "(foo *)" perf.c:216: ERROR: "(foo*)" should be "(foo *)" perf.c:217: ERROR: space required before that '*' (ctx:OxV) perf.c:452: ERROR: do not initialise statics to 0 or NULL perf.c:453: ERROR: do not initialise statics to 0 or NULL Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> LKML-Reference: <1264633557-17597-7-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29Merge branch 'perf/urgent' into perf/coreIngo Molnar
Merge reason: We want to queue up a dependent patch. Also update to later -rc's. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29perf session: Create kernel maps in the constructorArnaldo Carvalho de Melo
Removing one extra step needed in the tools that need this, fixing a bug in 'perf probe' where this was not being done. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Masami Hiramatsu <mhiramat@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: <1264633557-17597-4-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29perf symbols: Split helpers used when creating kernel dso objectArnaldo Carvalho de Melo
To make it clear and allow for direct usage by, for instance, regression test suites. 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: <1264633557-17597-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29perf symbols: Factor out dso__load_vmlinux_path()Arnaldo Carvalho de Melo
So that we can call it directly from regression tests, and also to reduce the size of dso__load_kernel_sym(), making it more clear. 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: <1264633557-17597-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29perf top: Exit if specified --vmlinux can't be usedArnaldo Carvalho de Melo
As we do lazy loading of symtabs we only will know if the specified vmlinux file is invalid when we actually have a hit in kernel space and then try to load it. So if we get kernel hits and there are _no_ symbols in the DSO backing the kernel map, bail out. Reported-by: Mike Galbraith <efault@gmx.de> 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: <1264633557-17597-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf trace: Add -i option for choosing input fileHitoshi Mitake
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>
2010-01-27perf symbols: Use the right variable to check for kallsyms in the cacheArnaldo Carvalho de Melo
Probably this wasn't noticed when testing this on my parisc machine because I must have copied manually to its cache the vmlinux file used in the x86_64 machine, now that I tried looking on a x86-32 machine with a fresh cache, kernel symbols weren't being resolved even with the right kallsyms copy on its cache, duh. 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: <1264178102-4203-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf symbols: Fix inverted logic for showing kallsyms as the source of symbolsArnaldo Carvalho de Melo
Only if we parsed /proc/kallsyms (or a copy found in the buildid cache) we should set the dso long name to "[kernel.kallsyms]". Reported-by: Mike Galbraith <efault@gmx.de> 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: <1264178102-4203-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf top: Handle PERF_RECORD_{FORK,EXIT} eventsArnaldo Carvalho de Melo
As noticed by Mike, symbols in new tasks were not being processed as we weren't processing these events. Reported-by: Mike Galbraith <efault@gmx.de> Tested-by: Mike Galbraith <efault@gmx.de> 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: <1264086284-1431-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf top: Fix sample countingArnaldo Carvalho de Melo
Broken since "5b2bb75 perf top: Support userspace symbols too". Reported-by: Mike Galbraith <efault@gmx.de> Tested-by: Mike Galbraith <efault@gmx.de> 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: <1264086284-1431-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf: Ignore perf.data.oldAmerigo Wang
Tell git to ignore this file. Signed-off-by: WANG Cong <amwang@redhat.com> LKML-Reference: <20100125051052.3999.28082.sendpatchset@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27perf report: Fix segmentation fault when running with '-g none'Yong Wang
Segmentation fault occurs when running perf report with '-g none'. Reported-by: Austin Zhang <austin.zhang@intel.com> Signed-off-by: Yong Wang <yong.y.wang@intel.com> 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: <20100122014750.GA4111@ywang-moblin2.bj.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-21perf buildid-cache: Add new command to manage build-id cacheArnaldo Carvalho de Melo
For now it just has operations to examine a given file, find its build-id and add or remove it to/from the cache. Useful, for instance, when adding binaries sent together with a perf.data file, so that we can add them to the cache and have the tools find it when resolving symbols. It'll also manage the size of the cache like 'ccache' does. 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: <1264008525-29025-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf symbols: Use only --vmlinux if specifiedArnaldo Carvalho de Melo
Found while analysing a perf.data file collected on an ARM machine where an explicitely specified vmlinux was being disregarded. Reported-by: Jamie Iles <jamie.iles@picochip.com> 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: <1263904574-30732-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf symbols: Set dso->kernel when handling the fake vmlinux MMAP eventArnaldo Carvalho de Melo
Because it may be possible that there was no buildid section, where we would set this to 1. Found while analysing a perf.data file collected on an ARM machine where an explicitely specified vmlinux was being disregarded. Reported-by: Jamie Iles <jamie.iles@picochip.com> 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: <1263904574-30732-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf archive: Fix installation steps in the MakefileArnaldo Carvalho de Melo
Fix these warning: acme@parisc:~/git/linux-2.6-tip$ make -C tools/perf/ install make: Entering directory `/home/acme/git/linux-2.6-tip/tools/perf' Makefile:833: warning: overriding commands for target `perf-archive' Makefile:822: warning: ignoring old commands for target `perf-archive' Reported-by: Ingo Molnar <mingo@elte.hu> 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: <1263846102-24841-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf archive: Add documentationArnaldo Carvalho de Melo
This also makes it appear on the 'perf --help' output, i.e. util/generate-cmdlist.sh now takes it into account. 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: <1263837559-24168-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf kmem: Print usage help for unknown commandsPekka Enberg
This patch fixes "perf kmem" to print usage help instead of doing nothing. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <1263921971-10782-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-20perf kmem: Increase "Hit" column lengthPekka Enberg
It's fairly easy to overflow the "Hit" column with just few seconds of tracing so increase the column length to avoid broken formatting. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> LKML-Reference: <1263921803-10214-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-17perf probe: Fix build error of builtin-probe.cHitoshi Mitake
I got this build error when building tip tree: | cc1: warnings being treated as errors | builtin-probe.c:123: error: 'opt_show_lines' defined but not used This error is caused by: | #ifndef NO_LIBDWARF | OPT_CALLBACK('L', "line", NULL, | "FUNC[:RLN[+NUM|:RLN2]]|SRC:ALN[+NUM|:ALN2]", | "Show source code lines.", opt_show_lines), | #endif My environment defines NO_LIBDWARF, so gcc treated opt_show_lines() as garbage. So I moved opt_show_lines() into #ifndef NO_LIBDWARF ... #endif block. 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> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1263645076-9993-1-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-17perf: Fix implicit declaration of getline in util.cFrederic Weisbecker
getline() is considered as undeclared in util/util.c because it includes string.h, that in turn includes stdio.h, without having defined _GNU_SOURCE. But util.c also includes util.h that handles the _GNU_SOURCE and all the needed inclusions already. Let's include only util.h and sys/mman.h which is the only one header not handled by util.h This fixes the following build error: util/util.c: In function 'slow_copyfile': util/util.c:49: erreur: implicit declaration of function 'getline' util/util.c:49: erreur: nested extern declaration of 'getline' 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> LKML-Reference: <1263648075-3858-1-git-send-regression-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-17perf timechart: Use tid not pid for COMM changeArjan van de Ven
A process that changes its comm field, does this on a per kernel task struct basis. The timechart tool used, incorrectly, the pid to track this, and should have used the tid instead... Signed-off-by: Arjan van de Ven <arjan@linux.intel.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> Cc: Frederic Weisbecker <fweisbec@gmail.com> CC: <stable@kernel.org> LKML-Reference: <20100116125319.34ac3edd@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 09:41:50 +0000