== sanity test 101a: check read-ahead for random reads === 10:07:03 (1753366023) nreads: 10000 file size: 96MB 103.055142s, 6.35931MB/s osc.lustre-OST0000-osc-ffff8a500a0b0800.rpc_stats= snapshot_time: 1753366140.710245388 secs.nsecs start_time: 1753366025.115792605 secs.nsecs elapsed_time: 115.594452783 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff8a500a0b0800.rpc_stats= snapshot_time: 1753366140.710314856 secs.nsecs start_time: 1753366025.115822202 secs.nsecs elapsed_time: 115.594492654 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 1 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 6522 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6523 99 99 | 25 100 100 2: 1 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 5 0 0 | 0 0 4 32: 7 0 0 | 0 0 4 64: 22 0 0 | 0 0 4 128: 31 0 1 | 0 0 4 256: 71 1 2 | 0 0 4 512: 133 2 4 | 0 0 4 1024: 262 4 8 | 1 4 8 2048: 550 8 16 | 2 8 16 4096: 1092 16 33 | 4 16 32 8192: 2143 32 66 | 8 32 64 16384: 2204 33 100 | 9 36 100 llite.lustre-ffff8a500a0b0800.read_ahead_stats= snapshot_time 1753366140.716819794 secs.nsecs start_time 1753366025.125426911 secs.nsecs elapsed_time 115.591392883 secs.nsecs hits 97811 samples [pages] misses 6524 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97811 samples [pages] failed_to_fast_read 6524 samples [pages] readahead_pages 6524 samples [pages] 1 15 97811