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Kan Liang 9e207ddfa2 perf report: Show call graph from reference events 
Introduce --show-ref-call-graph for perf report to print reference
callgraph for no callgraph event.

Here is an example.

 perf report --show-ref-call-graph --stdio

 # To display the perf.data header info, please use
 --header/--header-only options.
 #
 #
 # Total Lost Samples: 0
 #
 # Samples: 5  of event 'cpu/cpu-cycles,call-graph=fp/'
 # Event count (approx.): 144985
 #
 # Children      Self  Command  Shared Object     Symbol
 # ........  ........  .......  ................  ........................................
 #
    72.30%     0.00%  sleep    [kernel.vmlinux]  [k] entry_SYSCALL_64_fastpath
              |
              ---entry_SYSCALL_64_fastpath
                 |
                 |--22.62%-- __GI___libc_nanosleep
                  --77.38%-- [...]

......

 # Samples: 6  of event 'cpu/instructions,call-graph=no/', show reference callgraph
 # Event count (approx.): 172780
 #
 # Children      Self  Command  Shared Object     Symbol
 # ........  ........  .......  ................  ........................................
 #
    73.16%     0.00%  sleep    [kernel.vmlinux]  [k] entry_SYSCALL_64_fastpath
              |
              ---entry_SYSCALL_64_fastpath
                 |
                 |--31.44%-- __GI___libc_nanosleep
                  --68.56%-- [...]

Signed-off-by: Kan Liang <kan.liang@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1439289050-40510-3-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-08-12 13:20:28 -03:00
..
arch tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
build bpf tools: Introduce 'bpf' library and add bpf feature check 2015-08-07 10:16:56 -03:00
cgroup
firewire
hv Drivers: hv: fcopy: full handshake support 2015-05-24 12:17:42 -07:00
iio tools:iio:iio_utils: pass strings as const 2015-06-01 08:40:26 +01:00
include tools: Copy rbtree_augmented.h from the kernel 2015-07-05 22:59:05 -03:00
laptop/freefall Move freefall program from Documentation/ to tools/ 2015-06-08 16:42:07 -06:00
lguest
lib bpf tools: Link all bpf objects onto a list 2015-08-07 10:16:59 -03:00
net tools: bpf_jit_disasm: fix segfault on disabled debugging log output 2015-05-27 00:24:10 -04:00
nfsd
perf perf report: Show call graph from reference events 2015-08-12 13:20:28 -03:00
power Additional ACPICA material for v4.2-rc1 2015-07-02 17:11:28 -07:00
scripts
testing tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test 2015-07-10 14:07:03 -04:00
thermal/tmon tools/thermal: tmon: fixed the 'make install' command 2015-05-09 13:36:58 +08:00
time
usb
virtio
vm tools: Fix tools/vm build 2015-05-12 18:11:06 -03:00
Makefile Staging driver patches for 4.2-rc1 2015-06-26 15:46:08 -07:00