27 Aug, 2013
9 commits
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Avoiding multiple sc->fmt != NULL tests.
Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-w28d1o3uslden0k57653kda7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
Starting with one for printing pointers in hexadecimal, using the
information in the syscall tracepoint format.Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-c4y4jy7qqkn8wsd8q6j1g7zh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
That was reproduced via ftrace as described in this cset comment log,
need to investigate further.Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-n1i3m0vo6mgq3ddjj95sls2s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
So that we can ask for all but a set of syscalls to be traced.
Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-9j6hvap23qanyl96wx4mrj9k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
No need to install perl or python files when the respective
NO_LIBP{YTHON,ERL} define is set.Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-c69d4jz08gb1zm2vpervva2q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
Occassionally events (e.g., context-switch, sched tracepoints) are losing
the conversion of sample data associated with a thread. For example:$ perf record -e sched:sched_switch -c 1 -a -- sleep 5
$ perf scriptls 30482 [000] 1379727.583037: sched:sched_switch: prev_comm=ls prev_pid=30482 ...
ls 30482 [000] 1379727.586339: sched:sched_switch: prev_comm=ls prev_pid=30482 ...
:30482 30482 [000] 1379727.589462: sched:sched_switch: prev_comm=ls prev_pid=30482 ...The last line lost the conversion from tid to comm. If you look at the events
(perf script -D) you see why - a SAMPLE event is generated after the EXIT:0 1379727589449774 0x1540b0 [0x38]: PERF_RECORD_EXIT(30482:30482):(30482:30482)
0 1379727589462497 0x1540e8 [0x80]: PERF_RECORD_SAMPLE(IP, 1): 30482/30482: 0xffffffff816416f1 period: 1 addr: 0
... thread: :30482:30482When perf processes the EXIT event the thread is moved to the dead_threads
list. When the SAMPLE event is processed no thread exists for the pid so a new
one is created by machine__findnew_thread.This patch address the problem by delaying the move to the dead_threads list
until the tid is re-used (per Adrian's suggestion).With this patch we get the previous example shows:
ls 30482 [000] 1379727.583037: sched:sched_switch: prev_comm=ls prev_pid=30482 ...
ls 30482 [000] 1379727.586339: sched:sched_switch: prev_comm=ls prev_pid=30482 ...
ls 30482 [000] 1379727.589462: sched:sched_switch: prev_comm=ls prev_pid=30482 ...and
0 1379727589449774 0x1540b0 [0x38]: PERF_RECORD_EXIT(30482:30482):(30482:30482)
0 1379727589462497 0x1540e8 [0x80]: PERF_RECORD_SAMPLE(IP, 1): 30482/30482: 0xffffffff816416f1 period: 1 addr: 0
... thread: ls:30482v4: per Arnaldo's request add dead flag to thread struct and set when task exits
v3: re-do from a time based check to a delayed move to dead_threads list
v2: Rebased to latest perf/core branch. Changed time comparison to use
a macro which explicitly shows the time basisSigned-off-by: David Ahern
Acked-by: Adrian Hunter
Cc: Adrian Hunter
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1376491767-84171-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
Common arguments like thread id, CPU list, mmap pages, etc should be
consistent across perf commands.v3: Updated man page
v2: rebased to latest core branchSigned-off-by: David Ahern
Link: http://lkml.kernel.org/r/1377018945-21940-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
To output all 'trace' output to a filename, just like 'strace -ofile'
Cc: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-6q1homkwoayhmoq64y5vhel6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo
17 Aug, 2013
4 commits
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It is useful to see the arguments to perf_event_open and whether the
perf events ring buffer was mmapped per-cpu or per-thread.That information will now be displayed when verbose is 2 i.e option -vv.
Signed-off-by: Adrian Hunter
Acked-by: Namhyung Kim
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1376484517-5339-3-git-send-email-adrian.hunter@intel.com
[ fixup trivial conflict with fcb14f7 ]
Signed-off-by: Arnaldo Carvalho de Melo -
The python/perf.so python binding links a subset of objects.
Re-implement 'verbose' and 'eprintf' so they (and consequently
'pr_debug') can be used in objects linked into pythin/perf.so.Note 'eprintf' must be re-implemented because the full version links the
browser ui.Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1376484517-5339-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
perf stat -a needs 10 open file descriptors per logical CPU
perf stat -a -dddd needs 20 open fds for each.This implies that stat -a doesn't work on any system with the default
ulimit -n 1024 which has more than ~100 CPUs and stat -a -dddd doesn't
work on anything with more than 46 CPUs.Longer term there needs to be probably some way to lower the file
descriptor requirements. This would need some changes in the kernel/user
interface.But short term this patch just tries to increase the file descriptor
limit in perf itself, when it runs into a EMFILE.It first sets it to the hard limit, and then tries to increase the hard
limit.On Fedora systems the default seems to be soft limit 1024 and hard limit
4*1024. So even non root can support 409 or 186 CPUs respectively. root
can go far higher.Signed-off-by: Andi Kleen
Link: http://lkml.kernel.org/r/1375670486-15480-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo -
4a4d371a missed builtin-kvm in the cleanup to remove the force option
to cmd_record.Signed-off-by: David Ahern
Cc: Jiri Olsa
Link: http://lkml.kernel.org/r/1376512573-85012-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo
16 Aug, 2013
6 commits
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We should not be calling calc_timer_values() for events that do not actually
have an mmap()'ed userpage.Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/20130802191630.GT27162@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar -
Freq events may not always be affine to a particular CPU. As such,
account_event_cpu() may crash if we account per cpu a freq event
that has event->cpu == -1.To solve this, lets account freq events globally. In practice
this doesn't change much the picture because perf tools create
per-task perf events with one event per CPU by default. Profiling a
single CPU is usually a corner case so there is no much point in
optimizing things that way.Reported-by: Jiri Olsa
Suggested-by: Peter Zijlstra
Signed-off-by: Frederic Weisbecker
Tested-by: Jiri Olsa
Cc: Namhyung Kim
Cc: Arnaldo Carvalho de Melo
Cc: Stephane Eranian
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1375460996-16329-3-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar -
When we fail to allocate the callchain buffers, we roll back the refcount
we did and return from get_callchain_buffers().However we take the refcount and allocate under the callchain lock
but the rollback is done outside the lock.As a result, while we roll back, some concurrent callchain user may
call get_callchain_buffers(), see the non-zero refcount and give up
because the buffers are NULL without itself retrying the allocation.The consequences aren't that bad but that behaviour looks weird enough and
it's better to give their chances to the following callchain users where
we failed.Reported-by: Jiri Olsa
Signed-off-by: Frederic Weisbecker
Acked-by: Jiri Olsa
Cc: Namhyung Kim
Cc: Arnaldo Carvalho de Melo
Cc: Stephane Eranian
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1375460996-16329-2-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar -
This patch adds support for the SNB-EP PCU uncore PMU extra_sel_bit
(bit 21) which is missing from the documentation in Table-2.75 of
Intel Xeon Processor E5-2600 Product Family Uncore Performance
Monitoring Guide. It is referred to later in Table-2.81. Without
this selection bit explicitly enabled by the kernel, some events
such as COREx_TRANSITION_CYCLES do not count correctly.Signed-off-by: Yan, Zheng
Reviewed-by: Stephane Eranian
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1376375382-21350-4-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar -
The QPI uncore boxes have two pairs of MATCH/MASK registers that
user to filter packet traffic serviced by QPI link layer. These
registers are in auxiliary PCI devices.This patch adds the auxiliary PCI devices to snbep_uncore_pci_ids
and adds field definitions for the MATCH/MASK registers.Signed-off-by: Yan, Zheng
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1375856245-10717-2-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar -
The QPI uncore boxes have two pairs of MATCH/MASK registers that
user to filter packet traffic serviced by QPI link layer. These
registers are in auxiliary PCI devices.This patch changes the meaning of (struct pci_device_id)->driver_data.
The first 8 bits are device index of the same uncore type, the second
8 bytes are uncore type index. Auxiliary PCI device's type is defined
as UNCORE_EXTRA_PCI_DEV(0xff)Signed-off-by: Yan, Zheng
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1375856245-10717-1-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar
15 Aug, 2013
3 commits
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…stedt/linux-trace into perf/core
Pull perf optimizations from Steve Rostedt.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-
Merge Linux 3.11-rc5, to sync up with the latest upstream fixes since -rc1.
Signed-off-by: Ingo Molnar
-
…/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
* Allow specifying syscalls in 'perf trace', a la strace.
* Simplify symbol filtering by doing it at machine class level,
from Adrian Hunter.* Add option to 'perf kvm' to print only events that exceed a specified time
duration, from David Ahern.* 'perf sched' improvements, including removing some tracepoints that provide
the same information as the PERF_RECORD_{FORK,EXIT} events.* Improve stack trace printing, from David Ahern.
* Update documentation with live command, from David Ahern
* Fix 'perf test' compile failure on do_sort_something, from David Ahern.
* Improve robustness of topology parsing code, from Stephane Eranian.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
14 Aug, 2013
6 commits
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Similar to -e in strace, i.e. a comma separated list of syscall names
to trace.Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/n/tip-5zku7q5wug3103k1dzn3yy63@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo -
This patch improves the robustness of the build_cpu_topo() routine by
allowing either the CPU parsing or the thread parsing to fail and yet
get perf to produce some topology data which could be useful for the
analysis.Without this patch, if the cpu parsing fails, the thread parsing is not
attempted vice-versa.Signed-off-by: Stephane Eranian
Cc: David Ahern
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Link: http://lkml.kernel.org/r/20130814100426.GA3444@quad
Signed-off-by: Arnaldo Carvalho de Melo -
Commit b55ae0a9 added code-reading.c which fails to compile on Fedora 16
with compiler version:
$ gcc --version
gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2)Failure message is:
tests/code-reading.c: In function ‘do_sort_something’:
tests/code-reading.c:305:13: error: stack protector not protecting local variables: variable length buffer [-Werror=stack-protector]
cc1: all warnings being treated as errors
make: *** [/tmp/junk/tests/code-reading.o] Error 1
make: *** Waiting for unfinished jobs....v2: as Adrian noticed changed sizeof to ARRAY_SIZE
Signed-off-by: David Ahern
Acked-by: Adrian Hunter
Cc: Adrian Hunter
Cc: Jiri Olsa
Link: http://lkml.kernel.org/r/1376454732-83728-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
perf_trace_buf_prepare() + perf_trace_buf_submit(task => NULL)
make no sense if hlist_empty(head). Change perf_trace_##call()
to check ->perf_events beforehand and do nothing if it is empty.This removes the overhead for tasks without events associated
with them. For example, "perf record -e sched:sched_switch -p1"
attaches the counter(s) to the single task, but every task in
system will do perf_trace_buf_prepare/submit() just to realize
that it was not attached to this event.However, we can only do this if __task == NULL, so we also add
the __builtin_constant_p(__task) check.With this patch "perf bench sched pipe" shows approximately 4%
improvement when "perf record -p1" runs in parallel, many thanks
to Steven for the testing.Link: http://lkml.kernel.org/r/20130806160847.GA2746@redhat.com
Tested-by: David Ahern
Acked-by: Peter Zijlstra
Signed-off-by: Oleg Nesterov
Signed-off-by: Steven Rostedt -
The next patch tries to avoid the costly perf_trace_buf_* calls
when possible but there is a problem. We can only do this if
__task == NULL, perf_tp_event(task != NULL) has the additional
code for this case.Unfortunately, TP_perf_assign/__perf_xxx which changes the default
values of __count/__task variables for perf_trace_buf_submit() is
called "too late", after we already did perf_trace_buf_prepare(),
and the optimization above can't work.So this patch simply embeds __perf_xxx() into TP_ARGS(), this way
DECLARE_EVENT_CLASS() can use the result of assignments hidden in
"args" right after ftrace_get_offsets_##call() which is mostly
trivial. This allows us to have the fast-path "__task != NULL"
check at the start, see the next patch.Link: http://lkml.kernel.org/r/20130806160844.GA2739@redhat.com
Tested-by: David Ahern
Acked-by: Peter Zijlstra
Signed-off-by: Oleg Nesterov
Signed-off-by: Steven Rostedt -
To simplify the review of the next patches:
1. We are going to reimplent __perf_task/counter and embedd them
into TP_ARGS(). expand TRACE_EVENT(sched_stat_runtime) into
DECLARE_EVENT_CLASS() + DEFINE_EVENT(), this way they can use
different TP_ARGS's.2. Change perf_trace_##call() macro to do perf_fetch_caller_regs()
right before perf_trace_buf_prepare().This way it evaluates TP_ARGS() asap, the next patch explores
this fact.Note: after 87f44bbc perf_trace_buf_prepare() doesn't need
"struct pt_regs *regs", perhaps it makes sense to remove this
argument. And perhaps we can teach perf_trace_buf_submit()
to accept regs == NULL and do fetch_caller_regs(CALLER_ADDR1)
in this case.3. Cosmetic, but the typecast from "void*" buys nothing. It just
adds the noise, remove it.Link: http://lkml.kernel.org/r/20130806160841.GA2736@redhat.com
Acked-by: Peter Zijlstra
Tested-by: David Ahern
Signed-off-by: Oleg Nesterov
Signed-off-by: Steven Rostedt
12 Aug, 2013
12 commits
-
Now that the symbol filter is recorded on the machine there is no need
to pass it to thread__find_addr_map(). So remove it.Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-9-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Now that the symbol filter is recorded on the machine there is no need
to pass it to thread__find_addr_location(). So remove it.Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Now that the symbol filter is recorded on the machine there is no need
to pass it to perf_event__preprocess_sample(). So remove it.Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Take into use the machines symbol filter member.
Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Member 'annotate_init' of struct perf_mem is unused. Remove it.
Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Take into use the machines' symbol filter member.
Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Take into use the machines symbol filter member.
Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
The symbol filter needs to be applied machine-wide, so add it to struct
machine.Currently tools pass the symbol filter as a parameter to various
map-related functions. However a need to load a map can occur anywhere
in the code, at which point the filter is needed.Signed-off-by: Adrian Hunter
Cc: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Mike Galbraith
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375961547-30267-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo -
Any event can have RAW data attribute set. The intent of the function is
to determine if the session has tracepoints, so check for the type of
each event explicitly.Signed-off-by: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375930261-77273-17-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
Option is used by upcoming timehist command.
Signed-off-by: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375930261-77273-12-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
Option is used by upcoming timehist command.
Signed-off-by: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375930261-77273-11-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo -
Make print options based on flags. Simplifies addition of more print
options which is the subject of upcoming patches.Signed-off-by: David Ahern
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Peter Zijlstra
Cc: Stephane Eranian
Link: http://lkml.kernel.org/r/1375930261-77273-10-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo