[yocto-perf] Build Perf Test Report for CentOS Linux 7 (Core)

[Yocto CentOS 7 Build Perf Tester]

Yocto build performance test report.

TEST METADATA:
==============
                      CURRENT COMMIT          COMPARING WITH      
Hostname:             ypperf-centos7          ypperf-centos7      
Branch:               master                  master              
Commit number:        49795                   49794               
Commit:               b6bc5b2840246ac0f0e5    da3625c52e1ab8985fba
Number of test runs:  10                      11                  

TEST RESULTS:
=============
  test1: Build core-image-sato
           build time              1:20:12  ->  1:20:16          +3.2 s   +0.1 %
           tmpdir size           30.75 GiB  ->  30.75 GiB    +972.1 kiB   +0.0 %
           rootfs size          224.30 MiB  ->  224.29 MiB     -2.7 kiB   -0.0 %
                                                                                
  test12: Build virtual/kernel
           build time               7:06.9  ->  7:06.9          -0.06 s   -0.0 %
                                                                                
  test13: Build core-image-sato with rm_work enabled
           build time              1:21:54  ->  1:22:00          +6.7 s   +0.1 %
           tmpdir size            6.08 GiB  ->  6.08 GiB      -13.6 kiB   -0.0 %
                                                                                
  test2: Run core-image-sato do_rootfs with sstate
           do_rootfs time           2:03.4  ->  2:03.7          +0.25 s   +0.2 %
                                                                                
  test3: Bitbake parsing (bitbake -p)
           parse_1 time             27.5 s  ->  27.6 s          +0.07 s   +0.2 %
           parse_2 time             17.1 s  ->  17.2 s          +0.08 s   +0.5 %
           parse_3 time              1.7 s  ->  1.7 s           -0.01 s   -0.7 %
                                                                                
  test4: eSDK metrics
           installer_bin size     1.05 GiB  ->  1.05 GiB      +38.0 kiB   +0.0 %
           deploy time              2:15.1  ->  2:15.2          +0.08 s   +0.1 %
           deploy_dir size        3.49 GiB  ->  3.49 GiB      -18.6 kiB   -0.0 %
                                                                                

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