== sanity test 101a: check read-ahead for random reads === 19:52:01 (1746143521) nreads: 10000 file size: 96MB 107.309488s, 6.1072MB/s osc.lustre-OST0000-osc-ffff88012ffe5800.rpc_stats= snapshot_time: 1746143642.893876615 secs.nsecs start_time: 1746143522.607716156 secs.nsecs elapsed_time: 120.286160459 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 | 3 75 75 2: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 50 50 2: 0 0 0 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012ffe5800.rpc_stats= snapshot_time: 1746143642.894246426 secs.nsecs start_time: 1746143522.607734958 secs.nsecs elapsed_time: 120.286511468 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 | 1 3 3 2: 0 0 0 | 1 3 7 4: 1 0 0 | 0 0 7 8: 1 0 0 | 1 3 10 16: 6469 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: 6469 99 99 | 26 92 92 2: 2 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: 6 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 20 0 0 | 0 0 14 128: 30 0 1 | 0 0 14 256: 71 1 2 | 0 0 14 512: 134 2 4 | 0 0 14 1024: 262 4 8 | 1 3 17 2048: 553 8 16 | 2 7 25 4096: 1089 16 33 | 4 14 39 8192: 2158 33 67 | 8 28 67 16384: 2135 32 100 | 9 32 100 llite.lustre-ffff88012ffe5800.read_ahead_stats= snapshot_time 1746143642.901458713 secs.nsecs start_time 1746143522.614384935 secs.nsecs elapsed_time 120.287073778 secs.nsecs hits 97041 samples [pages] misses 6471 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97041 samples [pages] failed_to_fast_read 6471 samples [pages] readahead_pages 6471 samples [pages] 2 15 97041