Pasted

# time tar xf linux-5.10.tar 
 real    0m1,116s
user    0m0,262s
sys     0m0,845s
 # time perf trace -o /dev/null tar xf linux-5.10.tar 
 real    0m2,465s
user    0m1,925s
sys     0m0,319s
 # time strace -o /dev/null tar xf linux-5.10.tar 
 real    0m11,389s
user    0m4,559s
sys     0m8,496s