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* perf probe: Use wrapper functionsMasami Hiramatsu2010-03-173-40/+24
| | | | | | | | | | | | | | | | Use wrapped functions as much as possible, to check out of memory conditions in perf probe. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100316220530.32050.53951.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* perf tools: Introduce xzalloc() for detecting out of memory conditionsMasami Hiramatsu2010-03-171-0/+9
| | | | | | | | | | | | | | | | | Introducing xzalloc() which wrapping zalloc() for detecting out of memory conditions. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100316220521.32050.85155.stgit@localhost6.localdomain6> [ -v2: small cleanups in surrounding code ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'perf/urgent' into perf/coreIngo Molnar2010-03-177-24/+32
|\ | | | | | | | | | | Merge reason: We'll be queueing dependent changes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf top: Add missing initialization to zeroArnaldo Carvalho de Melo2010-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The dso_short_width has to start as zero, as we're calculating the maximum short DSO name length, somehow I missed this one. Reported-by: Frédéric Weisbecker <fweisbec@gmail.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: <1268774926-27488-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf probe: Use original address instead of CU-based addressMasami Hiramatsu2010-03-162-10/+2
| | | | | | | | | | | | | | | | | | | | | | Use original address for looking up the location of variables for dwarf_getlocation_addr() instead of CU-based address. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> LKML-Reference: <20100315170235.31852.91195.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf probe: Fix offset to allow signed valueMasami Hiramatsu2010-03-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Fix dereference offset to intmax_t from uintmax_t, because it can have negative values (for example local variable's offset from frame pointer). Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> LKML-Reference: <20100315170228.31852.71946.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf top: Improve the autosizing of column lenghtsArnaldo Carvalho de Melo2010-03-163-10/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When profiling C++ workloads the symbol name length can be really big, so cap it before it garbles the result. This builds upon the autosizing already present where we choose to use the short, basename of DSOs instead of its long, full pathname. Reported-by: Pavel Krauz <krauz@cngroup.cz> 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: <1268676230-9261-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf probe: Fix need_dwarf flag if lazy matching is usedMasami Hiramatsu2010-03-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Set need_dwarf if lazy matching pattern is specified, because lazy matching requires real source path for which we must use debuginfo. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> LKML-Reference: <20100312232224.2017.54550.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf probe: Fix probe_point buffer overrunMasami Hiramatsu2010-03-132-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix probe_point array-size overrun problem. In some cases (e.g. inline function), one user-specified probe-point can be translated to many probe address, and it overruns pre-defined array-size. This also removes redundant MAX_PROBES macro definition. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: <stable@kernel.org> LKML-Reference: <20100312232217.2017.45017.stgit@localhost6.localdomain6> [ Note that only root can create new probes. Eventually we should remove the MAX_PROBES limit, but that is a larger patch not eligible to perf/urgent treatment. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf annotate: Properly notify the user that vmlinux is missingArnaldo Carvalho de Melo2010-03-153-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this patch we would not find a vmlinux, then try to pass objdump "[kernel.kallsyms]" as the filename, it would get confused and produce no output: [root@doppio ~]# perf annotate n_tty_write ------------------------------------------------ Percent | Source code & Disassembly of [kernel.kallsyms] ------------------------------------------------ Now we check that and emit meaningful warning: [root@doppio ~]# perf annotate n_tty_write Can't annotate n_tty_write: No vmlinux file was found in the path: [0] vmlinux [1] /boot/vmlinux [2] /boot/vmlinux-2.6.34-rc1-tip+ [3] /lib/modules/2.6.34-rc1-tip+/build/vmlinux [4] /usr/lib/debug/lib/modules/2.6.34-rc1-tip+/vmlinux [root@doppio ~]# This bug was introduced when we added automatic search for vmlinux, before that time the user had to specify a vmlinux file. v2: Print the warning just for the first symbol found when no symbol name is specified, otherwise it will spam the screen repeating the warning for each symbol. 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> Cc: <stable@kernel.org> LKML-Reference: <1268669073-6856-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf top: Properly notify the user that vmlinux is missingArnaldo Carvalho de Melo2010-03-153-21/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this patch this message would very briefly appear on the screen and then the screen would get updates only on the top, for number of interrupts received, etc, but no annotation would be performed: [root@doppio linux-2.6-tip]# perf top -s n_tty_write > /tmp/bla objdump: '[kernel.kallsyms]': No such file Now this is what the user gets: [root@doppio linux-2.6-tip]# perf top -s n_tty_write Can't annotate n_tty_write: No vmlinux file was found in the path: [0] vmlinux [1] /boot/vmlinux [2] /boot/vmlinux-2.6.33-rc5 [3] /lib/modules/2.6.33-rc5/build/vmlinux [4] /usr/lib/debug/lib/modules/2.6.33-rc5/vmlinux [root@doppio linux-2.6-tip]# This bug was introduced when we added automatic search for vmlinux, before that time the user had to specify a vmlinux file. Reported-by: David S. Miller <davem@davemloft.net> 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> Cc: <stable@kernel.org> LKML-Reference: <1268664418-28328-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf record: Enable the enable_on_exec flag if record forks the targetEric B Munson2010-03-151-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When forking its target, perf record can capture data from before the target application is started. Perf stat uses the enable_on_exec flag in the event attributes to keep from displaying events from before the target program starts, this patch adds the same functionality to perf record when it is will fork the target process. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <1268664418-28328-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf tools: Fix non-newt buildArnaldo Carvalho de Melo2010-03-133-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The use_browser needs to be in a file that is always built and also we need a browser__show_help stub in that case. Reported-by: Anton Blanchard <anton@samba.org> 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: <1268438710-32697-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf hist: Don't fprintf the callgraph unconditionallyArnaldo Carvalho de Melo2010-03-121-13/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [root@doppio ~]# perf report -i newt.data | head -10 # Samples: 11999679868 # # Overhead Command Shared Object Symbol # ........ ....... ............................. ...... # 63.61% perf libslang.so.2.1.4 [.] SLsmg_write_chars 6.30% perf perf [.] symbols__find 2.19% perf libnewt.so.0.52.10 [.] newtListboxAppendEntry 2.08% perf libslang.so.2.1.4 [.] SLsmg_write_chars@plt 1.99% perf libc-2.10.2.so [.] _IO_vfprintf_internal [root@doppio ~]# Not good, the newt form for report works, but slang has to eat the cost of the additional callgraph lines everytime it prints a line, and the callgraph doesn't appear on the screen, so move the callgraph printing to a separate function and don't use it in newt.c. Newt tree widgets are being investigated to properly support callgraphs, but till that gets merged, lets remove this huge overhead and show at least the symbol overheads for a callgraph rich perf.data with good performance. 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: <1268408808-13595-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf newt: Use newtGetScreenSizeArnaldo Carvalho de Melo2010-03-121-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | For consistency, use the newt API more fully. 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: <1268408808-13595-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf newt: Add 'Q', 'q' and Ctrl+C as ways to exit from formsArnaldo Carvalho de Melo2010-03-121-4/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | These are keys people expect when pressed to exit the current widget, so have associate all of them to this semantic. Suggested-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: <1268401692-9361-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf report: Implement initial UI using newtArnaldo Carvalho de Melo2010-03-1210-21/+270
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newt has widespread availability and provides a rather simple API as can be seen by the size of this patch. The work needed to support it will benefit other frontends too. In this initial patch it just checks if the output is a tty, if not it falls back to the previous behaviour, also if newt-devel/libnewt-dev is not installed the previous behaviour is maintaned. Pressing enter on a symbol will annotate it, ESC in the annotation window will return to the report symbol list. More work will be done to remove the special casing in color_fprintf, stop using fmemopen/FILE in the printing of hist_entries, etc. Also the annotation doesn't need to be done via spawning "perf annotate" and then browsing its output, we can do better by calling directly the builtin-annotate.c functions, that would then be moved to tools/perf/util/annotate.c and shared with perf top, etc But lets go by baby steps, this patch already improves perf usability by allowing to quickly do annotations on symbols from the report screen and provides a first experimentation with libnewt/TUI integration of tools. Tested on RHEL5 and Fedora12 X86_64 and on Debian PARISC64 to browse a perf.data file collected on a Fedora12 x86_64 box. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Avi Kivity <avi@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: <1268349164-5822-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf tools: Add missing bytes printed in hist_entry__fprintfArnaldo Carvalho de Melo2010-03-121-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | We need those to properly size the browser widht in the newt TUI. 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: <1268349164-5822-4-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf tools: Use eprintf for pr_{err,warning,info} tooArnaldo Carvalho de Melo2010-03-122-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Just like we do for pr_debug, so that we can have a single point where to redirect to the currently used output system, be it stdio or newt. 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: <1268349164-5822-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf top: Export get_window_dimensionsArnaldo Carvalho de Melo2010-03-122-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | Will be used by the newt code 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: <1268349164-5822-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf symbols: Bump plt synthesizing warning debug levelArnaldo Carvalho de Melo2010-03-121-2/+2
| | | | | | | | | | | | | | | | | | | | 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: <1268349164-5822-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'perf/urgent' into perf/coreIngo Molnar2010-03-1218-69/+289
|\ \ | |/ | | | | | | | | Merge reason: We want to queue up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf record: Don't try to find buildids in a zero sized fileArnaldo Carvalho de Melo2010-03-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing this symptom: [acme@mica linux-2.6-tip]$ perf record -a -f Fatal: Permission error - are you root? Bus error [acme@mica linux-2.6-tip]$ I.e. if for some reason no data is collected, in this case a non root user trying to do systemwide profiling, no data will be collected, and then we end up trying to mmap a zero sized file and access the file header, b00m. 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> Cc: <stable@kernel.org> LKML-Reference: <1268333592-30872-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf: Make the install relative to DESTDIR if specifiedJohn Kacur2010-03-112-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without this change, the install path is relative to prefix/DESTDIR where prefix is automatically set to $HOME. This can produce unexpected results. For example: make -C tools/perf DESTDIR=/home/jkacur/tmp install-man creates the directory: /home/jkacur/home/jkacur/tmp/share/... instead of the expected: /home/jkacur/tmp/share/... Signed-off-by: John Kacur <jkacur@redhat.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> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Kyle McMartin <kyle@redhat.com> Cc: <stable@kernel.org> LKML-Reference: <1268312220-12880-1-git-send-email-jkacur@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf tools: Fix sparse CPU numbering related bugsPaul Mackerras2010-03-116-13/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At present, the perf subcommands that do system-wide monitoring (perf stat, perf record and perf top) don't work properly unless the online cpus are numbered 0, 1, ..., N-1. These tools ask for the number of online cpus with sysconf(_SC_NPROCESSORS_ONLN) and then try to create events for cpus 0, 1, ..., N-1. This creates problems for systems where the online cpus are numbered sparsely. For example, a POWER6 system in single-threaded mode (i.e. only running 1 hardware thread per core) will have only even-numbered cpus online. This fixes the problem by reading the /sys/devices/system/cpu/online file to find out which cpus are online. The code that does that is in tools/perf/util/cpumap.[ch], and consists of a read_cpu_map() function that sets up a cpumap[] array and returns the number of online cpus. If /sys/devices/system/cpu/online can't be read or can't be parsed successfully, it falls back to using sysconf to ask how many cpus are online and sets up an identity map in cpumap[]. The perf record, perf stat and perf top code then calls read_cpu_map() in the system-wide monitoring case (instead of sysconf) and uses cpumap[] to get the cpu numbers to pass to perf_event_open. Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: Anton Blanchard <anton@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <20100310093609.GA3959@brick.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf report: Print the map table just after samples for which no map was foundArnaldo Carvalho de Melo2010-03-103-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If -vv is used just the map table will be printed, -vvv will print the symbol table too, with it we can see that we have a bug where some samples are not being resolved to a map when we get them in the perf.data stream, but after we have it all processed, we can find the right map, some reordering probably is happening. Upcoming patches will provide ways to ask for most PERF_SAMPLE_ conditional samples to be taken for !PERF_RECORD_SAMPLE events too, then we'll be able to ask for PERF_SAMPLE_TIME and PERF_SAMPLE_CPU to help diagnose this. 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: <1268161097-17761-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf report: Add multiple event supportEric B Munson2010-03-101-15/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Perf report does not handle multiple events being reported, even though perf record stores them properly on disk. This patch addresses that issue by adding the logic to perf report to use the event stream id that is saved by record and the new data structures to seperate the event streams and report them individually. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-6-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf session: Change perf_session post processing functions to take ↵Eric B Munson2010-03-105-32/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | histogram tree Now that report can store historgrams for multiple events we need to be able to do the post processing work for each histogram. This patch changes the post processing functions so that they can be called individually for each event's histogram. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> [ Guarantee bisectabilty by fixing up builtin-report.c ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf session: Add storage for seperating event types in reportEric B Munson2010-03-103-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds the structures necessary to count each event type independently in perf report. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-4-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf session: Change add_hist_entry to take the tree root instead of sessionEric B Munson2010-03-105-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to minimize the impact of storing multiple events in a report this function will now take the root of the histogram tree so that the logic for selecting the proper tree can be inserted before the call. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf record: Add ID and to recorded event data when recording multiple eventsEric B Munson2010-03-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently perf record does not write the ID or the to disk for events. This doesn't allow report to tell if an event stream contains one or more types of events. This patch adds this entry to the list of data that record will write to disk if more than one event was requested. Signed-off-by: Eric B Munson <ebmunson@us.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1267804269-22660-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf probe: Add missing variable initializationArnaldo Carvalho de Melo2010-03-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cc1: warnings being treated as errors util/probe-finder.c: In function 'find_line_range': util/probe-finder.c:172: warning: 'src' may be used uninitialized in this function make: *** [util/probe-finder.o] Error 1 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: 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: <1267804269-22660-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * perf tools: Don't trow away old map slices not overlapped by new mapsArnaldo Carvalho de Melo2010-03-101-3/+32
| | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David S. Miller <davem@davemloft.net> 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: <1267800842-22324-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf record: Mention paranoid sysctl when failing to create counterArnaldo Carvalho de Melo2010-03-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [acme@mica linux-2.6-tip]$ perf record -a -f Fatal: Permission error - are you root? Consider tweaking /proc/sys/kernel/perf_event_paranoid. [acme@mica linux-2.6-tip]$ Suggested-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: <1268333592-30872-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf-top: Show the percentage of successfull PEBS-fixupsPeter Zijlstra2010-03-101-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the PERF_RECORD_MISC_EXACT information to measure the success rate of the PEBS fix-up. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.694233760@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | perf: Add attr->precise support to raw event parsingPeter Zijlstra2010-03-101-0/+4
|/ | | | | | | | | | | | | | | | Minimal userspace interface to the new 'precise' events flag. Can be used like "perf top -e r00c0p" which will use PEBS to sample retired instructions. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.468665803@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge commit 'v2.6.34-rc1' into perf/urgentIngo Molnar2010-03-098-626/+644
|\ | | | | | | | | | | | | | | | | Conflicts: tools/perf/util/probe-event.c Merge reason: Pick up -rc1 and resolve the conflict as well. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'perf-probes-for-linus-2' of ↵Linus Torvalds2010-03-058-626/+644
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Issue at least one memory barrier in stop_machine_text_poke() perf probe: Correct probe syntax on command line help perf probe: Add lazy line matching support perf probe: Show more lines after last line perf probe: Check function address range strictly in line finder perf probe: Use libdw callback routines perf probe: Use elfutils-libdw for analyzing debuginfo perf probe: Rename probe finder functions perf probe: Fix bugs in line range finder perf probe: Update perf probe document perf probe: Do not show --line option without dwarf support kprobes: Add documents of jump optimization kprobes/x86: Support kprobes jump optimization on x86 x86: Add text_poke_smp for SMP cross modifying code kprobes/x86: Cleanup save/restore registers kprobes/x86: Boost probes when reentering kprobes: Jump optimization sysctl interface kprobes: Introduce kprobes jump optimization kprobes: Introduce generic insn_slot framework kprobes/x86: Cleanup RELATIVEJUMP_INSTRUCTION to RELATIVEJUMP_OPCODE
| | * perf probe: Correct probe syntax on command line helpMasami Hiramatsu2010-03-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move @SRC right after FUNC in syntax according to syntax change on command line help. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> LKML-Reference: <20100304033843.3819.10087.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Add lazy line matching supportMasami Hiramatsu2010-02-257-99/+298
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add lazy line matching support for specifying new probes. This also changes the syntax of perf probe a bit. Now perf probe accepts one of below probe event definitions. 1) Define event based on function name [EVENT=]FUNC[@SRC][:RLN|+OFF|%return|;PTN] [ARG ...] 2) Define event based on source file with line number [EVENT=]SRC:ALN [ARG ...] 3) Define event based on source file with lazy pattern [EVENT=]SRC;PTN [ARG ...] - New lazy matching pattern(PTN) follows ';' (semicolon). And it must be put the end of the definition. - So, @SRC is no longer the part which must be put at the end of the definition. Note that ';' (semicolon) can be interpreted as the end of a command by the shell. This means that you need to quote it. (anyway you will need to quote the lazy pattern itself too, because it may contains other sensitive characters, like '[',']' etc.). Lazy matching ------------- The lazy line matching is similar to glob matching except ignoring spaces in both of pattern and target. e.g. 'a=*' can matches 'a=b', 'a = b', 'a == b' and so on. This provides some sort of flexibility and robustness to probe point definitions against minor code changes. (for example, actual 10th line of schedule() can be changed easily by modifying schedule(), but the same line matching 'rq=cpu_rq*' may still exist.) Changes in v3: - Cast Dwarf_Addr to uintmax_t for printf-formats. Changes in v2: - Cast Dwarf_Addr to unsigned long long for printf-formats. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133611.6725.45078.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Show more lines after last lineMasami Hiramatsu2010-02-251-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Show 2 more lines after the last probe-able line. This will clearly show the last closed-brace of inline functions. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133604.6725.76820.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Check function address range strictly in line finderMasami Hiramatsu2010-02-252-23/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check (inlined) function address range strictly for improving output of probe-able lines of inline functions. Without this change, perf probe --line <function> sometimes showed other inline function bodies too, because it didn't filter out inlined functions. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133557.6725.20697.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Use libdw callback routinesMasami Hiramatsu2010-02-252-177/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use libdw callback functions aggressively, and remove local tree-search API. This change simplifies the code. Changes in v3: - Cast Dwarf_Addr to uintmax_t for printf-formats. Changes in v2: - Cast Dwarf_Addr to unsigned long long for printf-formats. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133549.6725.81499.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Use elfutils-libdw for analyzing debuginfoMasami Hiramatsu2010-02-254-466/+314
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer gcc introduces newer & richer debuginfo, and only libdw in elfutils project can support it. So perf probe moves onto elfutils-libdw from libdwarf. Changes in v3: - Cast Dwarf_Addr/Dwarf_Word to uintmax_t for printf-formats. - Recover a sign-prefix which was removed in v2 by mistake. Changes in v2: - Fix a type-casting bug in Makefile. - Cast Dwarf_Addr/Dwarf_Word to unsigned long long for printf-formats. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133542.6725.34724.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Rename probe finder functionsMasami Hiramatsu2010-02-253-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename *_probepoint to *_probe_point, for nothing but a cosmetic reason. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133534.6725.52615.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Fix bugs in line range finderMasami Hiramatsu2010-02-251-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix find_line_range_by_line() to init line_list and remove misconseptional found marking which should be done when real lines are found (if there is no lines probe-able, find_line_range() should return 0). Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133527.6725.52418.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Update perf probe documentMasami Hiramatsu2010-02-251-2/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update perf-probe.txt to suit to current perf-probe command and add some examples. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133519.6725.58816.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * perf probe: Do not show --line option without dwarf supportMasami Hiramatsu2010-02-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not show --line option in help message when perf doesn't support dwarf. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> LKML-Reference: <20100225133512.6725.88423.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Merge branch 'perf-core-for-linus' of ↵Linus Torvalds2010-02-2888-1331/+5576
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (172 commits) perf_event, amd: Fix spinlock initialization perf_event: Fix preempt warning in perf_clock() perf tools: Flush maps on COMM events perf_events, x86: Split PMU definitions into separate files perf annotate: Handle samples not at objdump output addr boundaries perf_events, x86: Remove superflous MSR writes perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in() perf_events, x86: AMD event scheduling perf_events: Add new start/stop PMU callbacks perf_events: Report the MMAP pgoff value in bytes perf annotate: Defer allocating sym_priv->hist array perf symbols: Improve debugging information about symtab origins perf top: Use a macro instead of a constant variable perf symbols: Check the right return variable perf/scripts: Tag syscall_name helper as not yet available perf/scripts: Add perf-trace-python Documentation perf/scripts: Remove unnecessary PyTuple resizes perf/scripts: Add syscall tracing scripts perf/scripts: Add Python scripting engine perf/scripts: Remove check-perf-trace from listed scripts ... Fix trivial conflict in tools/perf/util/probe-event.c
* | | | 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>
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