== sanity test 101a: check read-ahead for random reads === 01:36:01 (1769754961) nreads: 10000 file size: 96MB 180.973052s, 2.61495MB/s osc.lustre-OST0000-osc-ffff8ea7861f2800.rpc_stats= snapshot_time: 1769755164.121863576 secs.nsecs start_time: 1769754963.128815925 secs.nsecs elapsed_time: 200.993047651 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: 1 0 0 | 0 0 3 8: 3 0 0 | 0 0 3 16: 4775 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: 4778 99 99 | 26 100 100 2: 1 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 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: 4 0 0 | 0 0 7 32: 6 0 0 | 0 0 7 64: 15 0 0 | 0 0 7 128: 22 0 1 | 0 0 7 256: 45 0 2 | 0 0 7 512: 99 2 4 | 0 0 7 1024: 190 3 8 | 1 3 11 2048: 411 8 16 | 2 7 19 4096: 807 16 33 | 4 15 34 8192: 1550 32 65 | 8 30 65 16384: 1626 34 100 | 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: 0 0 0 | 0 0 0 4096: 84 1 1 | 0 0 0 8192: 1837 38 40 | 0 0 0 16384: 2236 46 86 | 1 3 3 32768: 693 14 101 | 1 3 7 65536: 40 0 102 | 19 73 80 131072: 1 0 102 | 5 19 100 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-ffff8ea7861f2800.rpc_stats= snapshot_time: 1769755164.122025323 secs.nsecs start_time: 1769754963.128859256 secs.nsecs elapsed_time: 200.993166067 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 | 3 75 75 2: 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 | 0 0 0 4096: 0 0 0 | 0 0 0 8192: 0 0 0 | 0 0 0 16384: 0 0 0 | 3 75 75 32768: 0 0 0 | 1 25 100 llite.lustre-ffff8ea7861f2800.read_ahead_stats= snapshot_time 1769755164.131978425 secs.nsecs start_time 1769754963.143568845 secs.nsecs elapsed_time 200.988409580 secs.nsecs hits 71619 samples [pages] misses 4779 samples [pages] readpage_not_consecutive 7217 samples [pages] zero_size_window 71619 samples [pages] failed_to_fast_read 4779 samples [pages] readahead_pages 4779 samples [pages] 3 15 71619