== sanity test 101a: check read-ahead for random reads === 07:29:59 (1787830199) nreads: 10000 file size: 96MB 180.842950s, 3.36698MB/s osc.lustre-OST0000-osc-ffff9b0dc89fe000.rpc_stats= snapshot_time: 1787830401.127029587 secs.nsecs start_time: 1787830201.490758135 secs.nsecs elapsed_time: 199.636271452 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-ffff9b0dc89fe000.rpc_stats= snapshot_time: 1787830401.127511809 secs.nsecs start_time: 1787830201.490789171 secs.nsecs elapsed_time: 199.636722638 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: 0 0 0 | 0 0 0 4: 7 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 6077 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: 6088 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: 19 0 0 | 0 0 4 128: 29 0 1 | 0 0 4 256: 65 1 2 | 0 0 4 512: 125 2 4 | 0 0 4 1024: 233 3 8 | 1 4 8 2048: 516 8 16 | 2 8 16 4096: 999 16 32 | 4 16 32 8192: 1998 32 65 | 8 32 64 16384: 2085 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: 0 0 0 | 0 0 0 4096: 390 6 6 | 0 0 0 8192: 3465 56 63 | 0 0 0 16384: 2007 32 96 | 0 0 0 32768: 346 5 101 | 2 8 8 65536: 25 0 102 | 23 92 100 131072: 0 0 102 | 0 0 100 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-ffff9b0dc89fe000.read_ahead_stats= snapshot_time 1787830401.144830169 secs.nsecs start_time 1787830201.513466725 secs.nsecs elapsed_time 199.631363444 secs.nsecs hits 91156 samples [pages] misses 6088 samples [pages] readpage_not_consecutive 9284 samples [pages] zero_size_window 91156 samples [pages] failed_to_fast_read 6088 samples [pages] readahead_pages 6088 samples [pages] 2 15 91156