== sanity test 101a: check read-ahead for random reads === 22:26:37 (1763349997) nreads: 10000 file size: 96MB 145.797070s, 4.49501MB/s osc.lustre-OST0000-osc-ffff99808b198800.rpc_stats= snapshot_time: 1763350159.083269306 secs.nsecs start_time: 1763349999.112786830 secs.nsecs elapsed_time: 159.970482476 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: 1 0 0 | 1 3 3 2: 2 0 0 | 0 0 3 4: 1 0 0 | 0 0 3 8: 3 0 0 | 1 3 7 16: 6492 99 100 | 0 0 7 32: 0 0 100 | 0 0 7 64: 0 0 100 | 0 0 7 128: 0 0 100 | 0 0 7 256: 0 0 100 | 0 0 7 512: 0 0 100 | 0 0 7 1024: 0 0 100 | 25 92 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6491 99 99 | 27 100 100 2: 8 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 3 11 11 1: 0 0 0 | 0 0 11 2: 0 0 0 | 0 0 11 4: 0 0 0 | 0 0 11 8: 0 0 0 | 0 0 11 16: 6 0 0 | 0 0 11 32: 8 0 0 | 0 0 11 64: 21 0 0 | 0 0 11 128: 29 0 1 | 0 0 11 256: 70 1 2 | 0 0 11 512: 129 1 4 | 0 0 11 1024: 262 4 8 | 1 3 14 2048: 546 8 16 | 2 7 22 4096: 1080 16 33 | 4 14 37 8192: 2144 32 66 | 8 29 66 16384: 2199 33 100 | 9 33 100 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: 1083 16 16 | 0 0 0 8192: 4253 65 82 | 0 0 0 16384: 1260 19 101 | 1 3 3 32768: 54 0 102 | 11 40 44 65536: 2 0 102 | 15 55 100 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 osc.lustre-OST0001-osc-ffff99808b198800.rpc_stats= snapshot_time: 1763350159.083420104 secs.nsecs start_time: 1763349999.112816840 secs.nsecs elapsed_time: 159.970603264 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 | 3 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 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: 0 0 0 | 0 0 0 8192: 0 0 0 | 0 0 0 16384: 0 0 0 | 3 100 100 llite.lustre-ffff99808b198800.read_ahead_stats= snapshot_time 1763350159.094837908 secs.nsecs start_time 1763349999.138722229 secs.nsecs elapsed_time 159.956115679 secs.nsecs hits 97356 samples [pages] misses 6499 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97357 samples [pages] failed_to_fast_read 6499 samples [pages] readahead_pages 6498 samples [pages] 1 15 97356