== sanity test 101a: check read-ahead for random reads === 13:32:11 (1747848731) nreads: 10000 file size: 96MB 53.003854s, 12.3644MB/s osc.lustre-OST0000-osc-ffff88012a566800.rpc_stats= snapshot_time: 1747848793.433341165 secs.nsecs start_time: 1747848732.261694215 secs.nsecs elapsed_time: 61.171646950 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 | 2 50 50 2: 0 0 0 | 1 25 75 4: 0 0 0 | 0 0 75 8: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 1 25 75 4: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012a566800.rpc_stats= snapshot_time: 1747848793.433402655 secs.nsecs start_time: 1747848732.261709958 secs.nsecs elapsed_time: 61.171692697 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 | 2 7 7 2: 2 0 0 | 1 3 10 4: 2 0 0 | 0 0 10 8: 5 0 0 | 0 0 10 16: 6377 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6386 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 5 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 20 0 0 | 0 0 14 128: 34 0 1 | 0 0 14 256: 71 1 2 | 0 0 14 512: 136 2 4 | 0 0 14 1024: 261 4 8 | 1 3 17 2048: 572 8 17 | 2 7 25 4096: 1108 17 34 | 4 14 39 8192: 2184 34 68 | 8 28 67 16384: 1982 31 100 | 9 32 100 llite.lustre-ffff88012a566800.read_ahead_stats= snapshot_time 1747848793.437303853 secs.nsecs start_time 1747848732.266603287 secs.nsecs elapsed_time 61.170700566 secs.nsecs hits 95667 samples [pages] misses 6386 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95667 samples [pages] failed_to_fast_read 6386 samples [pages] readahead_pages 6386 samples [pages] 1 15 95667