== sanity test 101a: check read-ahead for random reads === 10:43:20 (1760453000) nreads: 10000 file size: 96MB 10.670235s, 61.4195MB/s osc.lustre-OST0000-osc-ffff91d3524e8800.rpc_stats= snapshot_time: 1760453012.759347524 secs.nsecs start_time: 1760453001.213904956 secs.nsecs elapsed_time: 11.545442568 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 7 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff91d3524e8800.rpc_stats= snapshot_time: 1760453012.759421597 secs.nsecs start_time: 1760453001.213919916 secs.nsecs elapsed_time: 11.545501681 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 194 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 5083 100 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 99 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5083 100 100 | 92 92 92 2: 0 0 100 | 7 7 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5 0 0 | 0 0 1 32: 7 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 26 0 1 | 0 0 1 256: 54 1 2 | 1 1 2 512: 106 2 4 | 2 2 4 1024: 204 4 8 | 4 4 8 2048: 439 8 16 | 8 8 16 4096: 866 17 33 | 16 16 32 8192: 1699 33 67 | 32 32 64 16384: 1658 32 100 | 35 35 100 llite.lustre-ffff91d3524e8800.read_ahead_stats= snapshot_time 1760453012.763442094 secs.nsecs start_time 1760453001.219482447 secs.nsecs elapsed_time 11.543959647 secs.nsecs hits 76243 samples [pages] misses 5083 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76243 samples [pages] failed_to_fast_read 5083 samples [pages]