$ ./buildstats-diff  /data/poky-tmp/master/buildstats/2018031315*
Ignoring tasks less than 00:03.0 (3.0s)
Ignoring differences less than 00:01.0 (1.0s)

  PKG            TASK                      ABSDIFF   RELDIFF  CPUTIME1 -> CPUTIME2
  linux-yocto    do_package                  22.3s   +194.7%     11.5s -> 33.8s
  linux-yocto    do_deploy                   30.1s  +1557.3%      1.9s -> 32.0s
  linux-yocto    do_package_write_ipk       135.0s   +348.8%     38.7s -> 173.7s
  linux-yocto    do_compile_kernelmodules   142.0s    +17.8%    799.7s -> 941.8s
  linux-yocto    do_package_write_rpm       158.9s   +574.1%     27.7s -> 186.6s
  linux-yocto    do_compile                 174.7s    +18.7%    933.3s -> 1108.0s