trying 2000 iterations read thread 1093568832 start write thread 1101961536 start write thread 1101961536 stop read thread 1093568832 stop Pass: all stats after completion of extending writes saw the new size Command exited with non-zero status 2 0.00user 0.06system 0:12.16elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 80inputs+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 0:00.11elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 128inputs+40outputs (0major+111minor)pagefaults 0swaps 0.00user 0.03system 0:07.23elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 56inputs+128000outputs (0major+396minor)pagefaults 0swaps 0.04user 0.47system 0:02.22elapsed 23%CPU (0avgtext+0avgdata 0maxresident)k 2744inputs+207360outputs (1major+26001minor)pagefaults 0swaps 0.03user 0.49system 0:02.12elapsed 24%CPU (0avgtext+0avgdata 0maxresident)k 48inputs+207360outputs (1major+26002minor)pagefaults 0swaps 0.04user 0.47system 0:02.35elapsed 22%CPU (0avgtext+0avgdata 0maxresident)k 2560inputs+207360outputs (1major+26001minor)pagefaults 0swaps 0.05user 0.47system 0:02.08elapsed 25%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1major+26002minor)pagefaults 0swaps 0.00user 0.04system 0:07.31elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 152inputs+128000outputs (0major+136minor)pagefaults 0swaps 0.66user 0.95system 0:16.07elapsed 10%CPU (0avgtext+0avgdata 0maxresident)k 320896inputs+409600outputs (1major+25782minor)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 0.90system 2:23.66elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+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... 0.94user 11.00system 0:59.57elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+5242968outputs (0major+164423minor)pagefaults 0swaps 0.00user 0.44system 0:02.18elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+192000outputs (0major+114minor)pagefaults 0swaps read_checkzero done 1.94user 9.26system 0:11.24elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+8outputs (0major+96minor)pagefaults 0swaps 0.00user 0.00system 0:00.03elapsed 5%CPU (0avgtext+0avgdata 0maxresident)k 40inputs+784outputs (0major+238minor)pagefaults 0swaps 0.00user 0.00system 0:00.19elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+784outputs (0major+239minor)pagefaults 0swaps 0.00user 0.00system 0:00.20elapsed 1%CPU (0avgtext+0avgdata 0maxresident)k 789inputs+792outputs (0major+239minor)pagefaults 0swaps