trying 2000 iterations read thread 1089501504 start write thread 1097894208 start write thread 1097894208 stop read thread 1089501504 stop Pass: all stats after completion of extending writes saw the new size Command exited with non-zero status 2 0.00user 0.11system 0:12.19elapsed 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 0:00.07elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+56outputs (0major+113minor)pagefaults 0swaps 0.00user 0.10system 0:07.01elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+128000outputs (0major+396minor)pagefaults 0swaps 0.11user 1.14system 0:02.36elapsed 52%CPU (0avgtext+0avgdata 0maxresident)k 2688inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.15user 1.05system 0:02.12elapsed 56%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.13user 1.14system 0:02.45elapsed 52%CPU (0avgtext+0avgdata 0maxresident)k 2560inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.12user 1.15system 0:02.28elapsed 56%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.00user 0.06system 0:07.03elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+128000outputs (0major+135minor)pagefaults 0swaps 2.68user 2.49system 0:15.69elapsed 33%CPU (0avgtext+0avgdata 0maxresident)k 308448inputs+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 0.00user 1.39system 2:20.95elapsed 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... 2.30user 21.50system 0:56.36elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k 196608inputs+5242968outputs (0major+164404minor)pagefaults 0swaps 0.00user 0.91system 0:02.29elapsed 40%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+192000outputs (0major+114minor)pagefaults 0swaps read_checkzero done 1.96user 9.67system 0:11.67elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+8outputs (0major+95minor)pagefaults 0swaps 0.00user 0.00system 0:00.00elapsed 133%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+784outputs (0major+239minor)pagefaults 0swaps 0.00user 0.00system 0:00.19elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+784outputs (0major+239minor)pagefaults 0swaps 0.00user 0.00system 0:00.09elapsed 8%CPU (0avgtext+0avgdata 0maxresident)k 789inputs+792outputs (0major+240minor)pagefaults 0swaps