== sanity test 101a: check read-ahead for random reads === 17:45:58 (1788644758) nreads: 10000 file size: 96MB 180.154847s, 3.0208MB/s osc.lustre-OST0000-osc-ffff9c67cc4b6000.rpc_stats= snapshot_time: 1788644958.144162036 secs.nsecs start_time: 1788644759.702133183 secs.nsecs elapsed_time: 198.442028853 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 | 1 3 3 2: 0 0 0 | 0 0 3 4: 2 0 0 | 0 0 3 8: 4 0 0 | 1 3 7 16: 5435 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: 5441 100 100 | 25 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 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: 4 0 0 | 0 0 11 32: 7 0 0 | 0 0 11 64: 15 0 0 | 0 0 11 128: 23 0 1 | 0 0 11 256: 54 0 2 | 0 0 11 512: 115 2 4 | 0 0 11 1024: 199 3 7 | 1 3 14 2048: 466 8 16 | 2 7 22 4096: 892 16 32 | 4 14 37 8192: 1792 32 65 | 8 29 66 16384: 1868 34 100 | 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: 0 0 0 | 0 0 0 4096: 187 3 3 | 0 0 0 8192: 2639 48 51 | 0 0 0 16384: 2327 42 94 | 0 0 0 32768: 391 7 101 | 6 22 22 65536: 25 0 102 | 19 70 92 131072: 0 0 102 | 2 7 100 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-ffff9c67cc4b6000.rpc_stats= snapshot_time: 1788644958.144301886 secs.nsecs start_time: 1788644759.702165355 secs.nsecs elapsed_time: 198.442136531 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 | 1 33 33 32768: 0 0 0 | 0 0 33 65536: 0 0 0 | 2 66 100 llite.lustre-ffff9c67cc4b6000.read_ahead_stats= snapshot_time 1788644958.159551403 secs.nsecs start_time 1788644759.729895635 secs.nsecs elapsed_time 198.429655768 secs.nsecs hits 81525 samples [pages] misses 5441 samples [pages] readpage_not_consecutive 8299 samples [pages] zero_size_window 81525 samples [pages] failed_to_fast_read 5441 samples [pages] readahead_pages 5441 samples [pages] 2 15 81525