== sanity test 101a: check read-ahead for random reads === 21:39:54 (1788917994) nreads: 10000 file size: 96MB 70.887120s, 9.24512MB/s osc.lustre-OST0000-osc-ffff8c68f9797800.rpc_stats= snapshot_time: 1788918075.154952938 secs.nsecs start_time: 1788917995.069062636 secs.nsecs elapsed_time: 80.085890302 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: 1 0 0 | 0 0 3 4: 6 0 0 | 0 0 3 8: 2 0 0 | 0 0 3 16: 6461 99 100 | 0 0 3 32: 0 0 100 | 0 0 3 64: 0 0 100 | 0 0 3 128: 0 0 100 | 0 0 3 256: 0 0 100 | 0 0 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6471 100 100 | 26 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 2 7 7 1: 0 0 0 | 0 0 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 0 0 0 | 0 0 7 16: 6 0 0 | 0 0 7 32: 7 0 0 | 0 0 7 64: 21 0 0 | 0 0 7 128: 33 0 1 | 0 0 7 256: 72 1 2 | 0 0 7 512: 133 2 4 | 0 0 7 1024: 261 4 8 | 1 3 11 2048: 556 8 16 | 2 7 19 4096: 1092 16 33 | 4 15 34 8192: 2169 33 67 | 8 30 65 16384: 2116 32 100 | 9 34 100 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: 3270 50 50 | 1 3 3 4096: 3230 49 100 | 0 0 3 8192: 122 1 102 | 2 7 11 16384: 2 0 102 | 22 84 96 32768: 0 0 102 | 0 0 96 65536: 0 0 102 | 1 3 100 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-ffff8c68f9797800.rpc_stats= snapshot_time: 1788918075.155084578 secs.nsecs start_time: 1788917995.069099394 secs.nsecs elapsed_time: 80.085985184 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 75 75 2: 0 0 0 | 0 0 75 4: 0 0 0 | 0 0 75 8: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 50 50 2: 0 0 0 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 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 | 1 25 25 4096: 0 0 0 | 3 75 100 llite.lustre-ffff8c68f9797800.read_ahead_stats= snapshot_time 1788918075.161060260 secs.nsecs start_time 1788917995.076387908 secs.nsecs elapsed_time 80.084672352 secs.nsecs hits 96903 samples [pages] misses 6471 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 96904 samples [pages] failed_to_fast_read 6471 samples [pages] readahead_pages 6470 samples [pages] 1 15 96903