== sanity test 101a: check read-ahead for random reads === 05:41:29 (1768300889) nreads: 10000 file size: 96MB 156.843701s, 4.17843MB/s osc.lustre-OST0000-osc-ffff9c4b48c99800.rpc_stats= snapshot_time: 1768301067.055932736 secs.nsecs start_time: 1768300891.184070150 secs.nsecs elapsed_time: 175.871862586 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-ffff9c4b48c99800.rpc_stats= snapshot_time: 1768301067.056007318 secs.nsecs start_time: 1768300891.184102867 secs.nsecs elapsed_time: 175.871904451 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: 5 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 2 0 0 | 0 0 0 16: 5029 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 | 100 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5037 100 100 | 99 99 99 2: 0 0 100 | 1 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 26 0 1 | 0 0 1 256: 52 1 2 | 1 1 2 512: 106 2 4 | 2 2 4 1024: 206 4 8 | 4 4 8 2048: 428 8 16 | 8 8 16 4096: 856 16 33 | 16 16 32 8192: 1671 33 66 | 32 32 64 16384: 1663 33 100 | 36 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: 331 6 6 | 0 0 0 8192: 2853 56 63 | 1 1 1 16384: 1705 33 97 | 37 37 38 32768: 264 5 102 | 57 57 95 65536: 2 0 102 | 6 6 101 131072: 0 0 102 | 0 0 101 262144: 0 0 102 | 0 0 101 524288: 0 0 102 | 0 0 101 1048576: 0 0 102 | 0 0 101 2097152: 0 0 102 | 0 0 101 4194304: 0 0 102 | 0 0 101 8388608: 0 0 102 | 0 0 101 16777216: 0 0 102 | 0 0 101 33554432: 0 0 102 | 0 0 101 67108864: 0 0 102 | 0 0 101 134217728: 0 0 102 | 0 0 101 268435456: 0 0 102 | 0 0 101 536870912: 0 0 102 | 0 0 101 1073741824: 0 0 102 | 0 0 101 llite.lustre-ffff9c4b48c99800.read_ahead_stats= snapshot_time 1768301067.076142196 secs.nsecs start_time 1768300891.205393076 secs.nsecs elapsed_time 175.870749120 secs.nsecs hits 75423 samples [pages] misses 5037 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75423 samples [pages] failed_to_fast_read 5037 samples [pages] readahead_pages 5037 samples [pages] 1 15 75423