== sanity test 101a: check read-ahead for random reads === 02:31:34 (1733643094) nreads: 10000 file size: 96MB 25.862903s, 25.3398MB/s osc.lustre-OST0000-osc-ffff880079a7c800.rpc_stats= snapshot_time: 1733643124.025290827 secs.nsecs start_time: 1733643095.165238944 secs.nsecs elapsed_time: 28.860051883 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-ffff880079a7c800.rpc_stats= snapshot_time: 1733643124.025411574 secs.nsecs start_time: 1733643095.165295001 secs.nsecs elapsed_time: 28.860116573 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 192 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 1 1 2: 2 0 0 | 1 0 2 4: 1 0 0 | 0 0 2 8: 4 0 0 | 0 0 2 16: 4959 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 | 99 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4966 100 100 | 100 98 98 2: 0 0 100 | 1 0 99 3: 0 0 100 | 1 0 100 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: 5 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: 55 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 435 8 17 | 8 7 18 4096: 864 17 34 | 16 15 34 8192: 1685 33 68 | 32 31 65 16384: 1557 31 100 | 35 34 100 llite.lustre-ffff880079a7c800.read_ahead_stats= snapshot_time 1733643124.028165022 secs.nsecs start_time 1733643095.168233629 secs.nsecs elapsed_time 28.859931393 secs.nsecs hits 74388 samples [pages] misses 4966 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74388 samples [pages] failed_to_fast_read 4966 samples [pages] readahead_pages 4966 samples [pages] 1 15 74388