== sanity test 101a: check read-ahead for random reads === 14:06:21 (1752689181) nreads: 10000 file size: 96MB 61.465981s, 10.6622MB/s osc.lustre-OST0000-osc-ffff94c91177e000.rpc_stats= snapshot_time: 1752689252.844200187 secs.nsecs start_time: 1752689181.961734086 secs.nsecs elapsed_time: 70.882466101 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 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 osc.lustre-OST0001-osc-ffff94c91177e000.rpc_stats= snapshot_time: 1752689252.844290687 secs.nsecs start_time: 1752689181.961769226 secs.nsecs elapsed_time: 70.882521461 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: 3 0 0 | 2 1 1 2: 1 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 1 0 0 | 0 0 1 16: 5002 99 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 100 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5007 100 100 | 101 99 99 2: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 4 0 0 | 0 0 2 32: 6 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 26 0 1 | 0 0 2 256: 52 1 2 | 1 0 3 512: 107 2 4 | 2 1 5 1024: 203 4 8 | 4 3 9 2048: 428 8 16 | 8 7 17 4096: 853 17 33 | 16 15 33 8192: 1668 33 67 | 32 31 64 16384: 1641 32 100 | 36 35 100 llite.lustre-ffff94c91177e000.read_ahead_stats= snapshot_time 1752689252.851186918 secs.nsecs start_time 1752689181.969327866 secs.nsecs elapsed_time 70.881859052 secs.nsecs hits 75021 samples [pages] misses 5007 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75024 samples [pages] failed_to_fast_read 5007 samples [pages] readahead_pages 5004 samples [pages] 1 15 75021