== sanity test 101a: check read-ahead for random reads === 23:44:49 (1746157489) nreads: 10000 file size: 96MB 57.746787s, 11.3489MB/s osc.lustre-OST0000-osc-ffff88012a418800.rpc_stats= snapshot_time: 1746157552.464668357 secs.nsecs start_time: 1746157490.401874644 secs.nsecs elapsed_time: 62.062793713 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 | 2 50 50 2: 0 0 0 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012a418800.rpc_stats= snapshot_time: 1746157552.464771483 secs.nsecs start_time: 1746157490.401893319 secs.nsecs elapsed_time: 62.062878164 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 1 1 2: 1 0 0 | 1 0 2 4: 0 0 0 | 0 0 2 8: 1 0 0 | 0 0 2 16: 5017 99 100 | 0 0 2 32: 0 0 100 | 0 0 2 64: 0 0 100 | 0 0 2 128: 0 0 100 | 0 0 2 256: 0 0 100 | 100 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5019 100 100 | 97 94 94 2: 0 0 100 | 6 5 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 4 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 4 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 107 2 4 | 2 1 6 1024: 207 4 8 | 4 3 10 2048: 427 8 16 | 8 7 18 4096: 856 17 33 | 16 15 33 8192: 1670 33 67 | 32 31 65 16384: 1644 32 100 | 36 34 100 llite.lustre-ffff88012a418800.read_ahead_stats= snapshot_time 1746157552.469474097 secs.nsecs start_time 1746157490.406101181 secs.nsecs elapsed_time 62.063372916 secs.nsecs hits 75255 samples [pages] misses 5019 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75255 samples [pages] failed_to_fast_read 5019 samples [pages] readahead_pages 5019 samples [pages] 1 15 75255