trying 2000 iterations read thread 1083332928 start write thread 1091725632 start write thread 1091725632 stop read thread 1083332928 stop Pass: all stats after completion of extending writes saw the new size Command exited with non-zero status 2 0.00user 0.12system 0:12.17elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 88inputs+7008outputs (0major+215minor)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 0%CPU (0avgtext+0avgdata 0maxresident)k 56inputs+56outputs (0major+114minor)pagefaults 0swaps 0.00user 0.07system 0:07.10elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+128000outputs (0major+396minor)pagefaults 0swaps 0.10user 1.10system 0:03.84elapsed 31%CPU (0avgtext+0avgdata 0maxresident)k 2744inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.08user 1.03system 0:03.61elapsed 31%CPU (0avgtext+0avgdata 0maxresident)k 8inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.12user 1.05system 0:03.73elapsed 31%CPU (0avgtext+0avgdata 0maxresident)k 2560inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.11user 1.08system 0:03.15elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1599major+24405minor)pagefaults 0swaps 0.00user 0.07system 0:07.07elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+128000outputs (0major+137minor)pagefaults 0swaps 2.76user 2.49system 0:19.23elapsed 27%CPU (0avgtext+0avgdata 0maxresident)k 314752inputs+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 1.60system 2:56.40elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+2560016outputs (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... 2.32user 21.53system 1:22.20elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+5242968outputs (0major+164412minor)pagefaults 0swaps 0.00user 0.87system 0:03.01elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k 16inputs+192000outputs (0major+113minor)pagefaults 0swaps read_checkzero done 1.92user 8.84system 0:10.82elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 16inputs+8outputs (0major+95minor)pagefaults 0swaps 0.00user 0.00system 0:00.02elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+784outputs (0major+240minor)pagefaults 0swaps 0.00user 0.00system 0:00.16elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+784outputs (0major+240minor)pagefaults 0swaps 0.00user 0.00system 0:00.12elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k 789inputs+792outputs (0major+239minor)pagefaults 0swaps