teknoraver@fedorarm:~/src$ rm -rf software ; time tar xvf software.tar
software/
software/linux-6.1.tar.xz
software/linux-6.5.tar.xz
software/linux-6.8.tar.xz
software/linux-6.6.tar.xz
software/linux-6.9.tar.xz
software/linux-6.7.tar.xz
software/linux-6.3.tar.xz
software/linux-6.4.tar.xz
software/linux-6.0.tar.xz
software/linux-6.2.tar.xz
real 0m2.324s
user 0m0.025s
sys 0m0.745s
teknoraver@fedorarm:~/src$ rm -rf software ; time tar xvf software.tar --reflink
software/
software/linux-6.1.tar.xz
software/linux-6.5.tar.xz
software/linux-6.8.tar.xz
software/linux-6.6.tar.xz
software/linux-6.9.tar.xz
software/linux-6.7.tar.xz
software/linux-6.3.tar.xz
software/linux-6.4.tar.xz
software/linux-6.0.tar.xz
software/linux-6.2.tar.xz
real 0m0.455s
user 0m0.013s
sys 0m0.299s
teknoraver@fedorarm:~/src$ rm -rf software ; perf stat tar xf software.tar
Performance counter stats for 'tar xf software.tar':
963.29 msec task-clock:u # 0.274 CPUs utilized
0 context-switches:u # 0.000 /sec
0 cpu-migrations:u # 0.000 /sec
163 page-faults:u # 169.211 /sec
<not supported> cycles:u
<not supported> instructions:u
<not supported> branches:u
<not supported> branch-misses:u
3.511695561 seconds time elapsed
0.018284000 seconds user
0.865485000 seconds sys
teknoraver@fedorarm:~/src$ rm -rf software ; perf stat tar xf software.tar --reflink
Performance counter stats for 'tar xf software.tar --reflink':
371.10 msec task-clock:u # 0.837 CPUs utilized
0 context-switches:u # 0.000 /sec
0 cpu-migrations:u # 0.000 /sec
162 page-faults:u # 436.540 /sec
<not supported> cycles:u
<not supported> instructions:u
<not supported> branches:u
<not supported> branch-misses:u
0.443200550 seconds time elapsed
0.004412000 seconds user
0.322563000 seconds sys
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