trying 2000 iterations
read thread 1091393856 start
write thread 1104025920 start
read thread 1091393856 stop
write thread 1104025920 stop
Pass: all stats after completion of extending writes saw the new size
Command exited with non-zero status 2
0.00user 0.08system 0:12.28elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
16inputs+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 0:00.06elapsed 5%CPU (0avgtext+0avgdata 0maxresident)k
32inputs+56outputs (0major+113minor)pagefaults 0swaps
0.00user 0.08system 0:07.15elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+128000outputs (0major+396minor)pagefaults 0swaps
0.10user 1.10system 0:02.42elapsed 49%CPU (0avgtext+0avgdata 0maxresident)k
2688inputs+207360outputs (1599major+24404minor)pagefaults 0swaps
0.12user 1.04system 0:02.55elapsed 45%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+207360outputs (1599major+24403minor)pagefaults 0swaps
0.12user 1.08system 0:02.67elapsed 45%CPU (0avgtext+0avgdata 0maxresident)k
2560inputs+207360outputs (1599major+24403minor)pagefaults 0swaps
0.10user 1.11system 0:02.29elapsed 52%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+207360outputs (1599major+24403minor)pagefaults 0swaps
0.00user 0.08system 0:07.11elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+128000outputs (0major+135minor)pagefaults 0swaps
2.21user 2.18system 0:16.38elapsed 26%CPU (0avgtext+0avgdata 0maxresident)k
324064inputs+409600outputs (1599major+24185minor)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 1.19system 2:23.42elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+2560008outputs (0major+474minor)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...
2.59user 20.05system 1:08.18elapsed 33%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+5242968outputs (0major+164414minor)pagefaults 0swaps
0.00user 0.93system 0:03.00elapsed 31%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+192000outputs (0major+114minor)pagefaults 0swaps
read_checkzero done
0.88user 9.46system 0:10.38elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+8outputs (0major+96minor)pagefaults 0swaps
0.00user 0.00system 0:00.00elapsed 200%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+784outputs (0major+239minor)pagefaults 0swaps
0.00user 0.00system 0:00.21elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+784outputs (0major+240minor)pagefaults 0swaps
0.00user 0.01system 0:00.11elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k
789inputs+792outputs (0major+239minor)pagefaults 0swaps