== sanity test 101a: check read-ahead for random reads === 11:03:49 (1787843029) nreads: 10000 file size: 96MB 180.979159s, 3.14681MB/s osc.lustre-OST0000-osc-ffff9af73e8dc000.rpc_stats= snapshot_time: 1787843234.157970623 secs.nsecs start_time: 1787843030.955914925 secs.nsecs elapsed_time: 203.202055698 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 | 1 3 3 2: 2 0 0 | 0 0 3 4: 2 0 0 | 0 0 3 8: 4 0 0 | 0 0 3 16: 5684 99 100 | 0 0 3 32: 0 0 100 | 0 0 3 64: 0 0 100 | 0 0 3 128: 0 0 100 | 0 0 3 256: 0 0 100 | 0 0 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5692 100 100 | 26 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 2 7 7 1: 0 0 0 | 0 0 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 0 0 0 | 0 0 7 16: 6 0 0 | 0 0 7 32: 7 0 0 | 0 0 7 64: 17 0 0 | 0 0 7 128: 24 0 1 | 0 0 7 256: 61 1 2 | 0 0 7 512: 117 2 4 | 0 0 7 1024: 211 3 7 | 1 3 11 2048: 482 8 16 | 2 7 19 4096: 935 16 32 | 4 15 34 8192: 1869 32 65 | 8 30 65 16384: 1958 34 100 | 9 34 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 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: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 0 0 0 | 0 0 0 4096: 198 3 3 | 0 0 0 8192: 3061 53 57 | 0 0 0 16384: 2108 37 94 | 1 3 3 32768: 437 7 101 | 0 0 3 65536: 22 0 102 | 20 76 80 131072: 0 0 102 | 5 19 100 262144: 0 0 102 | 0 0 100 524288: 0 0 102 | 0 0 100 1048576: 0 0 102 | 0 0 100 2097152: 0 0 102 | 0 0 100 4194304: 0 0 102 | 0 0 100 8388608: 0 0 102 | 0 0 100 16777216: 0 0 102 | 0 0 100 33554432: 0 0 102 | 0 0 100 67108864: 0 0 102 | 0 0 100 134217728: 0 0 102 | 0 0 100 268435456: 0 0 102 | 0 0 100 536870912: 0 0 102 | 0 0 100 1073741824: 0 0 102 | 0 0 100 osc.lustre-OST0001-osc-ffff9af73e8dc000.rpc_stats= snapshot_time: 1787843234.160462696 secs.nsecs start_time: 1787843030.957002400 secs.nsecs elapsed_time: 203.203460296 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 | 3 75 75 2: 0 0 0 | 0 0 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 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 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: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 0 0 0 | 0 0 0 4096: 0 0 0 | 0 0 0 8192: 0 0 0 | 1 25 25 16384: 0 0 0 | 3 75 100 llite.lustre-ffff9af73e8dc000.read_ahead_stats= snapshot_time 1787843234.177654984 secs.nsecs start_time 1787843030.982883648 secs.nsecs elapsed_time 203.194771336 secs.nsecs hits 85245 samples [pages] misses 5692 samples [pages] readpage_not_consecutive 8685 samples [pages] zero_size_window 85245 samples [pages] failed_to_fast_read 5692 samples [pages] readahead_pages 5692 samples [pages] 1 15 85245