== sanity test 101a: check read-ahead for random reads === 22:32:46 (1790735566) nreads: 10000 file size: 96MB 180.661588s, 3.22526MB/s osc.lustre-OST0000-osc-ffff8917eaf4b800.rpc_stats= snapshot_time: 1790735766.226252529 secs.nsecs start_time: 1790735567.968324442 secs.nsecs elapsed_time: 198.257928087 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: 2 0 0 | 0 0 0 2: 1 0 0 | 0 0 0 4: 2 0 0 | 0 0 0 8: 6 0 0 | 0 0 0 16: 5820 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: 5831 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: 17 0 0 | 0 0 4 128: 25 0 1 | 0 0 4 256: 62 1 2 | 0 0 4 512: 121 2 4 | 0 0 4 1024: 218 3 7 | 1 4 8 2048: 502 8 16 | 2 8 16 4096: 955 16 32 | 4 16 32 8192: 1928 33 65 | 8 32 64 16384: 1984 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: 448 7 7 | 0 0 0 8192: 3115 53 61 | 0 0 0 16384: 2012 34 95 | 0 0 0 32768: 365 6 101 | 2 8 8 65536: 29 0 102 | 19 76 84 131072: 0 0 102 | 4 16 100 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-ffff8917eaf4b800.rpc_stats= snapshot_time: 1790735766.226620469 secs.nsecs start_time: 1790735567.968354365 secs.nsecs elapsed_time: 198.258266104 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-ffff8917eaf4b800.read_ahead_stats= snapshot_time 1790735766.275704715 secs.nsecs start_time 1790735567.994107335 secs.nsecs elapsed_time 198.281597380 secs.nsecs hits 87296 samples [pages] misses 5831 samples [pages] readpage_not_consecutive 8886 samples [pages] zero_size_window 87298 samples [pages] failed_to_fast_read 5831 samples [pages] readahead_pages 5829 samples [pages] 1 15 87296