== sanity test 101a: check read-ahead for random reads === 08:30:55 (1787315455) nreads: 10000 file size: 96MB 161.821792s, 4.04989MB/s osc.lustre-OST0000-osc-ffff93e491c8f800.rpc_stats= snapshot_time: 1787315639.119901602 secs.nsecs start_time: 1787315457.615869688 secs.nsecs elapsed_time: 181.504031914 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: 1 0 0 | 2 1 1 2: 1 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 5 0 0 | 0 0 1 16: 5034 99 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 100 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5041 100 100 | 97 95 95 2: 0 0 100 | 4 3 99 3: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 4 0 0 | 0 0 2 32: 6 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 26 0 1 | 0 0 2 256: 53 1 2 | 1 0 3 512: 106 2 4 | 2 1 5 1024: 208 4 8 | 4 3 9 2048: 428 8 16 | 8 7 17 4096: 851 16 33 | 16 15 33 8192: 1674 33 66 | 32 31 64 16384: 1666 33 100 | 36 35 100 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: 263 5 5 | 0 0 0 8192: 2682 53 58 | 0 0 0 16384: 1810 35 94 | 26 25 25 32768: 381 7 101 | 59 57 83 65536: 23 0 102 | 16 15 99 131072: 0 0 102 | 2 1 100 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-ffff93e491c8f800.rpc_stats= snapshot_time: 1787315639.120042459 secs.nsecs start_time: 1787315457.615919153 secs.nsecs elapsed_time: 181.504123306 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 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 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 | 0 0 0 16384: 0 0 0 | 0 0 0 32768: 0 0 0 | 2 66 66 65536: 0 0 0 | 1 33 100 llite.lustre-ffff93e491c8f800.read_ahead_stats= snapshot_time 1787315639.156049064 secs.nsecs start_time 1787315457.628113696 secs.nsecs elapsed_time 181.527935368 secs.nsecs hits 75522 samples [pages] misses 5041 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75523 samples [pages] failed_to_fast_read 5041 samples [pages] readahead_pages 5040 samples [pages] 1 15 75522