trying 2000 iterations
read thread 1092405568 start
write thread 1100798272 start
read thread 1092405568 stop
write thread 1100798272 stop
Pass: all stats after completion of extending writes saw the new size
Command exited with non-zero status 2
0.00user 0.11system 0:12.16elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
8inputs+7008outputs (0major+214minor)pagefaults 0swaps
Pass: faulty sync/aio dio writes give EFAULT and don't write garbage
Command exited with non-zero status 2
0.00user 0.00system 0:00.13elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k
32inputs+56outputs (0major+113minor)pagefaults 0swaps
0.00user 0.08system 0:07.37elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+128000outputs (0major+395minor)pagefaults 0swaps
0.11user 1.11system 0:03.36elapsed 36%CPU (0avgtext+0avgdata 0maxresident)k
2688inputs+207360outputs (1599major+24405minor)pagefaults 0swaps
0.11user 1.14system 0:02.71elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+207360outputs (1599major+24404minor)pagefaults 0swaps
0.11user 1.14system 0:03.87elapsed 32%CPU (0avgtext+0avgdata 0maxresident)k
2560inputs+207360outputs (1599major+24405minor)pagefaults 0swaps
0.10user 1.03system 0:02.83elapsed 40%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+207360outputs (1599major+24405minor)pagefaults 0swaps
0.00user 0.07system 0:07.18elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+128000outputs (0major+137minor)pagefaults 0swaps
2.76user 2.51system 0:18.19elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k
324008inputs+409600outputs (1599major+24187minor)pagefaults 0swaps
dio_truncate: child reading file
parent loop # 0
parent loop # 1
parent loop # 2
parent loop # 3
parent loop # 4
parent loop # 5
parent loop # 6
parent loop # 7
parent loop # 8
parent loop # 9
0.02user 1.24system 2:28.17elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+2560008outputs (0major+473minor)pagefaults 0swaps
num_passes set to 10
Pass 1...
num_passes set to 10
Pass 1...
Pass 2...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
Pass 7...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
Pass 7...
Pass 8...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
Pass 7...
Pass 8...
Pass 9...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
Pass 7...
Pass 8...
Pass 9...
Pass 10...
num_passes set to 10
Pass 1...
Pass 2...
Pass 3...
Pass 4...
Pass 5...
Pass 6...
Pass 7...
Pass 8...
Pass 9...
Pass 10...
2.36user 21.62system 2:12.36elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
327680inputs+5242968outputs (0major+164403minor)pagefaults 0swaps
0.00user 0.96system 0:03.11elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+192000outputs (0major+114minor)pagefaults 0swaps
read_checkzero done
0.65user 8.10system 0:08.79elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+8outputs (0major+95minor)pagefaults 0swaps
0.00user 0.00system 0:00.00elapsed 160%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+784outputs (0major+239minor)pagefaults 0swaps
0.00user 0.00system 0:00.18elapsed 4%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+784outputs (0major+239minor)pagefaults 0swaps
0.00user 0.00system 0:00.13elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
789inputs+792outputs (0major+240minor)pagefaults 0swaps