== sanity test 101a: check read-ahead for random reads === 15:43:29 (1787773409) nreads: 10000 file size: 96MB 180.687625s, 3.10111MB/s osc.lustre-OST0000-osc-ffff946a03cbb000.rpc_stats= snapshot_time: 1787773608.077177486 secs.nsecs start_time: 1787773410.827244735 secs.nsecs elapsed_time: 197.249932751 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: 1 0 0 | 0 0 0 8: 5 0 0 | 0 0 0 16: 5622 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: 5628 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: 4 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 15 0 0 | 0 0 4 128: 24 0 1 | 0 0 4 256: 60 1 2 | 0 0 4 512: 120 2 4 | 0 0 4 1024: 208 3 7 | 1 4 8 2048: 483 8 16 | 2 8 16 4096: 925 16 32 | 4 16 32 8192: 1853 32 65 | 8 32 64 16384: 1922 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: 374 6 6 | 0 0 0 8192: 2983 53 59 | 0 0 0 16384: 1894 33 93 | 0 0 0 32768: 480 8 101 | 6 24 24 65536: 29 0 102 | 14 56 80 131072: 0 0 102 | 5 20 100 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-ffff946a03cbb000.rpc_stats= snapshot_time: 1787773608.077405715 secs.nsecs start_time: 1787773410.827281601 secs.nsecs elapsed_time: 197.250124114 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 llite.lustre-ffff946a03cbb000.read_ahead_stats= snapshot_time 1787773608.091881380 secs.nsecs start_time 1787773410.857254688 secs.nsecs elapsed_time 197.234626692 secs.nsecs hits 84317 samples [pages] misses 5628 samples [pages] readpage_not_consecutive 8545 samples [pages] zero_size_window 84317 samples [pages] failed_to_fast_read 5628 samples [pages] readahead_pages 5628 samples [pages] 2 15 84317