# strace -c uname -a
Linux g5 3.2.0-2-powerpc64 #1 SMP Fri Apr 6 04:55:11 UTC 2012 ppc64 GNU/Linux
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 58.85    0.000429         429         1           execve
 11.39    0.000083          28         3           open
  7.27    0.000053           7         8           mmap
  6.17    0.000045          23         2           munmap
  4.66    0.000034          34         1           write
  3.16    0.000023           8         3         3 access
  3.16    0.000023           8         3           mprotect
  1.51    0.000011           3         4           fstat64
  1.10    0.000008           8         1           mmap2
  0.82    0.000006           1         5           close
  0.82    0.000006           2         3           brk
  0.69    0.000005           5         1           read
  0.41    0.000003           3         1           uname
------ ----------- ----------- --------- --------- ----------------
100.00    0.000729                    36         3 total

But I'm on 4.5.20. I would try to get 4.6 and test it. If that
wouldn't work, then it's an obvious regression.

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