== sanity test 101a: check read-ahead for random reads === 11:20:06 (1786029606) nreads: 10000 file size: 96MB 180.517380s, 3.31279MB/s osc.lustre-OST0000-osc-ffff968542c79800.rpc_stats= snapshot_time: 1786029806.126307849 secs.nsecs start_time: 1786029608.727869714 secs.nsecs elapsed_time: 197.398438135 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 | 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 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff968542c79800.rpc_stats= snapshot_time: 1786029806.126386183 secs.nsecs start_time: 1786029608.728707913 secs.nsecs elapsed_time: 197.397678270 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 | 0 0 0 2: 2 0 0 | 0 0 0 4: 2 0 0 | 0 0 0 8: 3 0 0 | 0 0 0 16: 5961 99 100 | 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 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5968 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 18 0 0 | 0 0 4 128: 27 0 1 | 0 0 4 256: 64 1 2 | 0 0 4 512: 124 2 4 | 0 0 4 1024: 227 3 8 | 1 4 8 2048: 508 8 16 | 2 8 16 4096: 978 16 32 | 4 16 32 8192: 1973 33 65 | 8 32 64 16384: 2030 34 100 | 9 36 100 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: 1 0 0 | 0 0 0 4096: 927 15 15 | 0 0 0 8192: 2945 49 64 | 0 0 0 16384: 1798 30 95 | 0 0 0 32768: 419 7 102 | 4 16 16 65536: 19 0 102 | 20 80 96 131072: 0 0 102 | 1 4 100 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 llite.lustre-ffff968542c79800.read_ahead_stats= snapshot_time 1786029806.137883163 secs.nsecs start_time 1786029608.749854948 secs.nsecs elapsed_time 197.388028215 secs.nsecs hits 89423 samples [pages] misses 5968 samples [pages] readpage_not_consecutive 9120 samples [pages] zero_size_window 89423 samples [pages] failed_to_fast_read 5968 samples [pages] readahead_pages 5968 samples [pages] 1 15 89423