== sanity test 101a: check read-ahead for random reads === 05:31:11 (1734431471) nreads: 10000 file size: 96MB 54.501956s, 12.0245MB/s osc.lustre-OST0000-osc-ffff88007d381800.rpc_stats= snapshot_time: 1734431530.829988437 secs.nsecs start_time: 1734431471.966457271 secs.nsecs elapsed_time: 58.863531166 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 | 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-ffff88007d381800.rpc_stats= snapshot_time: 1734431530.830109704 secs.nsecs start_time: 1734431471.966526498 secs.nsecs elapsed_time: 58.863583206 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: 2 0 0 | 2 1 1 2: 0 0 0 | 1 0 2 4: 0 0 0 | 0 0 2 8: 7 0 0 | 0 0 2 16: 5031 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: 5036 99 99 | 101 98 98 2: 4 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: 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: 208 4 8 | 4 3 10 2048: 430 8 16 | 8 7 18 4096: 856 16 33 | 16 15 33 8192: 1676 33 67 | 32 31 65 16384: 1655 32 100 | 36 34 100 llite.lustre-ffff88007d381800.read_ahead_stats= snapshot_time 1734431530.835811404 secs.nsecs start_time 1734431471.972140743 secs.nsecs elapsed_time 58.863670661 secs.nsecs hits 75458 samples [pages] misses 5040 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75459 samples [pages] failed_to_fast_read 5040 samples [pages] readahead_pages 5038 samples [pages] 4 15 75458