== sanity test 101a: check read-ahead for random reads === 05:42:39 (1712137359) nreads: 10000 file size: 96MB 38.014309s, 17.2398MB/s osc.lustre-OST0000-osc-ffff8800b6020000.rpc_stats= snapshot_time: 1712137407.502180336 secs.nsecs start_time: 1712137359.705011268 secs.nsecs elapsed_time: 47.797169068 secs.nsecs read RPCs in flight: 0 write 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: 0 0 0 | 1 3 10 4: 2 0 0 | 0 0 10 8: 7 0 0 | 0 0 10 16: 6347 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: 6356 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: 6 0 0 | 0 0 14 32: 7 0 0 | 0 0 14 64: 22 0 0 | 0 0 14 128: 34 0 1 | 0 0 14 256: 74 1 2 | 0 0 14 512: 142 2 4 | 0 0 14 1024: 275 4 8 | 1 3 17 2048: 588 9 18 | 2 7 25 4096: 1152 18 36 | 4 14 39 8192: 2233 35 71 | 8 28 67 16384: 1818 28 100 | 9 32 100 osc.lustre-OST0001-osc-ffff8800b6020000.rpc_stats= snapshot_time: 1712137407.502332570 secs.nsecs start_time: 1712137359.705055768 secs.nsecs elapsed_time: 47.797276802 secs.nsecs read RPCs in flight: 0 write 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 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 llite.lustre-ffff8800b6020000.read_ahead_stats= snapshot_time 1712137407.505737222 secs.nsecs start_time 1712137359.708069298 secs.nsecs elapsed_time 47.797667924 secs.nsecs hits 95236 samples [pages] misses 6356 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95236 samples [pages] failed_to_fast_read 6356 samples [pages] readahead_pages 6356 samples [pages] 3 15 95236