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Adds autodetection for libelf as well, and simplifies the
libbfd code. Furthermore, fail make with an error when libelf
is not found and warn about the lack of libbfd.
Also provide an option to build a 32bit version even though you
might be running a 64bit kernel.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Since the C++ demangling isn't needed for everybody and
bfd/iberty aren't widely/easily available on all machines, make
it optional.
It also allows you to forcefully disable demangling by using
NO_DEMANGLE=1 and otherwise tries to detect libbfd/libiberty
combinations that result in a compiling demangler.
Reported-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
LKML-Reference: <20090801082048.GX12579@kernel.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On older distros (F8 for example) the perf build could fail
with such missing symbols:
LINK perf
/usr/lib/gcc/x86_64-redhat-linux/4.3.2/../../../../lib64/libbfd.a(bfd.o): In function `bfd_demangle':
(.text+0x2b3): undefined reference to `cplus_demangle'
/usr/lib/gcc/x86_64-redhat-linux/4.3.2/../../../../lib64/libbfd.a(bfd.o): In function `bfd_demangle':
Link in -liberty too.
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>
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[acme@doppio ~]$ perf report -s comm,dso,symbol -C firefox -d /usr/lib64/xulrunner-1.9.1/libxul.so | grep :: | head
2.21% [.] nsDeque::Push(void*)
1.78% [.] GraphWalker::DoWalk(nsDeque&)
1.30% [.] GCGraphBuilder::AddNode(void*, nsCycleCollectionParticipant*)
1.27% [.] XPCWrappedNative::CallMethod(XPCCallContext&, XPCWrappedNative::CallMode)
1.18% [.] imgContainer::DrawFrameTo(gfxIImageFrame*, gfxIImageFrame*, nsRect&)
1.13% [.] nsDeque::PopFront()
1.11% [.] nsGlobalWindow::RunTimeout(nsTimeout*)
0.97% [.] nsXPConnect::Traverse(void*, nsCycleCollectionTraversalCallback&)
0.95% [.] nsJSEventListener::cycleCollection::Traverse(void*, nsCycleCollectionTraversalCallback&)
0.95% [.] nsCOMPtr_base::~nsCOMPtr_base()
[acme@doppio ~]$
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Suggested-by: Clark Williams <williams@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090720171412.GB10410@ghostprotocols.net>
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symbols
Add infrastructure for module path discovery and section load addresses.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1246514830.13293.44.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The copy we were using came from another copy I did for the dwarves
(pahole) package, that came from the kernel years ago.
The only function that is used by the perf tools and that isn't in the
kernel is list_del_range, that I'm leaving in the perf tools only for
now.
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 <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20090701174608.GA5823@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The tools/perf/util/rbtree.c copy already drifted by three
csets:
4b324126e0c6c3a5080ca3ec0981e8766ed6f1ee
4c60117811171d867d4f27f17ea07d7419d45dae
16c047add3ceaf0ab882e3e094d1ec904d02312d
So remove the copy and use the lib/rbtree.c directly, sharing
the source code while still generating a separate object file,
since tools/perf uses a far more agressive -O6 switch.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20090701152837.GG15682@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Enable -Wextra. This found a few real bugs plus a number
of signed/unsigned type mismatches/uncleanlinesses. It
also required a few annotations
All things considered it was still worth it so lets try with
this enabled for now.
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>
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The zlib devel libraries may not be installed and since we aren't
using zlib we may as well remove it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
LKML-Reference: <20090630230140.802078956@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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So that we can filter by dso. Symbols in other dsos won't be
accounted for.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1246399282-20934-2-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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We plan to display the callchains depending on some user-configurable
parameters.
To gather the callchains stats from the recorded stream in a fast way,
this patch introduces an ad hoc radix tree adapted for callchains and also
a rbtree to sort these callchains once we have gathered every events
from the stream.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1246026481-8314-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Create a structured file format that includes the full
perf_counter_attr and all its relevant counter IDs so that
the reporting program has full information.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On 64-bit powerpc, __u64 is defined to be unsigned long rather than
unsigned long long. This causes compiler warnings every time we
print a __u64 value with %Lx.
Rather than changing __u64, we define our own u64 to be unsigned long
long on all architectures, and similarly s64 as signed long long.
For consistency we also define u32, s32, u16, s16, u8 and s8. These
definitions are put in a new header, types.h, because these definitions
are needed in util/string.h and util/symbol.h.
The main change here is the mechanical change of __[us]{64,32,16,8}
to remove the "__". The other changes are:
* Create types.h
* Include types.h in perf.h, util/string.h and util/symbol.h
* Add types.h to the LIB_H definition in Makefile
* Added (u64) casts in process_overflow_event() and print_sym_table()
to kill two remaining warnings.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: benh@kernel.crashing.org
LKML-Reference: <19003.33494.495844.956580@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Make it easier to use parent filtering - default to a filtered
output. Also add the parent column so that we get collapsing but
dont display it by default.
add --no-exclude-other to override this.
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: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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On 64-bit powerpc, perf needs to be built as a 64-bit executable.
This arranges to add the -m64 flag to CFLAGS if we are running on
a 64-bit machine, indicated by the result of uname -m ending in "64".
This means that we'll use -m64 on x86_64 machines as well.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linuxppc-dev@ozlabs.org
Cc: benh@kernel.crashing.org
LKML-Reference: <19000.55666.866148.559620@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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If -vv (very verbose) is specified, print out raw data
in the following format:
$ perf stat -vv -r 3 ./loop_1b_instructions
[ perf stat: executing run #1 ... ]
[ perf stat: executing run #2 ... ]
[ perf stat: executing run #3 ... ]
debug: runtime[0]: 235871872
debug: walltime[0]: 236646752
debug: runtime_cycles[0]: 755150182
debug: counter/0[0]: 235871872
debug: counter/1[0]: 235871872
debug: counter/2[0]: 235871872
debug: scaled[0]: 0
debug: counter/0[1]: 2
debug: counter/1[1]: 235870662
debug: counter/2[1]: 235870662
debug: scaled[1]: 0
debug: counter/0[2]: 1
debug: counter/1[2]: 235870437
debug: counter/2[2]: 235870437
debug: scaled[2]: 0
debug: counter/0[3]: 140
debug: counter/1[3]: 235870298
debug: counter/2[3]: 235870298
debug: scaled[3]: 0
debug: counter/0[4]: 755150182
debug: counter/1[4]: 235870145
debug: counter/2[4]: 235870145
debug: scaled[4]: 0
debug: counter/0[5]: 1001411258
debug: counter/1[5]: 235868838
debug: counter/2[5]: 235868838
debug: scaled[5]: 0
debug: counter/0[6]: 27897
debug: counter/1[6]: 235868560
debug: counter/2[6]: 235868560
debug: scaled[6]: 0
debug: counter/0[7]: 2910
debug: counter/1[7]: 235868151
debug: counter/2[7]: 235868151
debug: scaled[7]: 0
debug: runtime[0]: 235980257
debug: walltime[0]: 236770942
debug: runtime_cycles[0]: 755114546
debug: counter/0[0]: 235980257
debug: counter/1[0]: 235980257
debug: counter/2[0]: 235980257
debug: scaled[0]: 0
debug: counter/0[1]: 3
debug: counter/1[1]: 235980049
debug: counter/2[1]: 235980049
debug: scaled[1]: 0
debug: counter/0[2]: 1
debug: counter/1[2]: 235979907
debug: counter/2[2]: 235979907
debug: scaled[2]: 0
debug: counter/0[3]: 135
debug: counter/1[3]: 235979780
debug: counter/2[3]: 235979780
debug: scaled[3]: 0
debug: counter/0[4]: 755114546
debug: counter/1[4]: 235979652
debug: counter/2[4]: 235979652
debug: scaled[4]: 0
debug: counter/0[5]: 1001439771
debug: counter/1[5]: 235979304
debug: counter/2[5]: 235979304
debug: scaled[5]: 0
debug: counter/0[6]: 23723
debug: counter/1[6]: 235979050
debug: counter/2[6]: 235979050
debug: scaled[6]: 0
debug: counter/0[7]: 2213
debug: counter/1[7]: 235978820
debug: counter/2[7]: 235978820
debug: scaled[7]: 0
debug: runtime[0]: 235888002
debug: walltime[0]: 236700533
debug: runtime_cycles[0]: 754881504
debug: counter/0[0]: 235888002
debug: counter/1[0]: 235888002
debug: counter/2[0]: 235888002
debug: scaled[0]: 0
debug: counter/0[1]: 2
debug: counter/1[1]: 235887793
debug: counter/2[1]: 235887793
debug: scaled[1]: 0
debug: counter/0[2]: 1
debug: counter/1[2]: 235887645
debug: counter/2[2]: 235887645
debug: scaled[2]: 0
debug: counter/0[3]: 135
debug: counter/1[3]: 235887499
debug: counter/2[3]: 235887499
debug: scaled[3]: 0
debug: counter/0[4]: 754881504
debug: counter/1[4]: 235887368
debug: counter/2[4]: 235887368
debug: scaled[4]: 0
debug: counter/0[5]: 1001401731
debug: counter/1[5]: 235887024
debug: counter/2[5]: 235887024
debug: scaled[5]: 0
debug: counter/0[6]: 24212
debug: counter/1[6]: 235886786
debug: counter/2[6]: 235886786
debug: scaled[6]: 0
debug: counter/0[7]: 1824
debug: counter/1[7]: 235886560
debug: counter/2[7]: 235886560
debug: scaled[7]: 0
Performance counter stats for '/home/mingo/loop_1b_instructions' (3 runs):
235.913377 task-clock-msecs # 0.997 CPUs ( +- 0.011% )
2 context-switches # 0.000 M/sec ( +- 0.000% )
1 CPU-migrations # 0.000 M/sec ( +- 0.000% )
136 page-faults # 0.001 M/sec ( +- 0.730% )
755048744 cycles # 3200.534 M/sec ( +- 0.009% )
1001417586 instructions # 1.326 IPC ( +- 0.001% )
25277 cache-references # 0.107 M/sec ( +- 3.988% )
2315 cache-misses # 0.010 M/sec ( +- 9.845% )
0.236706075 seconds time elapsed.
This allows the summary stats to be validated.
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: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Several people have suggested that 'perf' has become a full-fledged
tool that should be moved out of Documentation/. Move it to the
(new) tools/ directory.
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: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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