Performance counter stats for 'make all':
  244011.782059  task-clock-msecs         #      0.925 CPUs
          53328  context-switches         #      0.000 M/sec
            515  CPU-migrations           #      0.000 M/sec
        1843121  page-faults              #      0.008 M/sec
   789702529782  cycles                   #   3236.330 M/sec
  1050912611378  instructions             #      1.331 IPC
   275538938708  branches                 #   1129.203 M/sec
     2888756216  branch-misses            #      1.048 %
     4343060367  cache-references         #     17.799 M/sec
      428257037  cache-misses             #      1.755 M/sec
  263.779192511  seconds time elapsed 
Performance counter stats for 'make all':
  244011.782059  task-clock-msecs         #      0.925 CPUs
          53328  context-switches         #      0.000 M/sec
            515  CPU-migrations           #      0.000 M/sec
        1843121  page-faults              #      0.008 M/sec
   789702529782  cycles                   #   3236.330 M/sec
  1050912611378  instructions             #      1.331 IPC
   275538938708  branches                 #   1129.203 M/sec
     2888756216  branch-misses            #      1.048 %
     4343060367  cache-references         #     17.799 M/sec
      428257037  cache-misses             #      1.755 M/sec
  263.779192511  seconds time elapsed 
 
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perf record -- make all 
# perf record -- make all 
 
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[ perf record: Woken up 42 times to write data ]
[ perf record: Captured and wrote 9.753 MB perf.data (~426109 samples) ] 
[ perf record: Woken up 42 times to write data ]
[ perf record: Captured and wrote 9.753 MB perf.data (~426109 samples) ] 
 
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Error: open_counter returned with 16 (Device or resource busy). /usr/bin/dmesg may provide additional information.
Fatal: Not all events could be opened. 
Error: open_counter returned with 16 (Device or resource busy). /usr/bin/dmesg may provide additional information.
Fatal: Not all events could be opened. 
 
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perf report --sort=comm 
# perf report --sort=comm 
 
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Samples: 1083783860000
Overhead          Command
........  ............... 
# Samples: 1083783860000
#
# Overhead          Command
# ........  ...............
#
    48.19%         xsltproc
    44.48%        pdfxmltex
     6.01%             make
     0.95%             perl
     0.17%       kernel-doc
     0.05%          xmllint
     0.05%              cc1
     0.03%               cp
     0.01%            xmlto
     0.01%               sh
     0.01%          docproc
     0.01%               ld
     0.01%              gcc
     0.00%               rm
     0.00%              sed
     0.00%   git-diff-files
     0.00%             bash
     0.00%   git-diff-index 
 
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perf report -n --comm=xsltproc 
# perf report -n --comm=xsltproc 
 
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comm: xsltproc
# Samples: 472520675377
#
# Overhead  Samples                    Shared Object  Symbol
# ........ ..........  .............................  ......
#
    45.54%215179861044  libxml2.so.2.7.6               [.] xmlXPathCmpNodesExt
    11.63%54959620202  libxml2.so.2.7.6               [.] xmlXPathNodeSetAdd__internal_alias
     8.60%40634845107  libxml2.so.2.7.6               [.] xmlXPathCompOpEval
     4.63%21864091080  libxml2.so.2.7.6               [.] xmlXPathReleaseObject
     2.73%12919672281  libxml2.so.2.7.6               [.] xmlXPathNodeSetSort__internal_alias
     2.60%12271959697  libxml2.so.2.7.6               [.] valuePop
     2.41%11379910918  libxml2.so.2.7.6               [.] xmlXPathIsNaN__internal_alias
     2.19%10340901937  libxml2.so.2.7.6               [.] valuePush__internal_alias 
comm: xsltproc
# Samples: 472520675377
#
# Overhead  Samples                    Shared Object  Symbol
# ........ ..........  .............................  ......
#
    45.54%215179861044  libxml2.so.2.7.6               [.] xmlXPathCmpNodesExt
    11.63%54959620202  libxml2.so.2.7.6               [.] xmlXPathNodeSetAdd__internal_alias
     8.60%40634845107  libxml2.so.2.7.6               [.] xmlXPathCompOpEval
     4.63%21864091080  libxml2.so.2.7.6               [.] xmlXPathReleaseObject
     2.73%12919672281  libxml2.so.2.7.6               [.] xmlXPathNodeSetSort__internal_alias
     2.60%12271959697  libxml2.so.2.7.6               [.] valuePop
     2.41%11379910918  libxml2.so.2.7.6               [.] xmlXPathIsNaN__internal_alias
     2.19%10340901937  libxml2.so.2.7.6               [.] valuePush__internal_alias 
 
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