== sanity test 101a: check read-ahead for random reads === 05:23:24 (1787822604) nreads: 10000 file size: 96MB 180.542716s, 3.28619MB/s osc.lustre-OST0000-osc-ffff9eae4a64f000.rpc_stats= snapshot_time: 1787822805.148610771 secs.nsecs start_time: 1787822606.549834255 secs.nsecs elapsed_time: 198.598776516 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 | 2 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 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 50 50 32768: 0 0 0 | 1 50 100 osc.lustre-OST0001-osc-ffff9eae4a64f000.rpc_stats= snapshot_time: 1787822805.148698866 secs.nsecs start_time: 1787822606.549874552 secs.nsecs elapsed_time: 198.598824314 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 | 2 7 7 2: 0 0 0 | 0 0 7 4: 1 0 0 | 0 0 7 8: 8 0 0 | 1 3 10 16: 5915 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5925 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 6 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 18 0 0 | 0 0 14 128: 26 0 1 | 0 0 14 256: 63 1 2 | 0 0 14 512: 123 2 4 | 0 0 14 1024: 222 3 7 | 1 3 17 2048: 508 8 16 | 2 7 25 4096: 972 16 32 | 4 14 39 8192: 1961 33 66 | 8 28 67 16384: 2013 33 100 | 9 32 100 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: 267 4 4 | 0 0 0 8192: 3274 55 59 | 0 0 0 16384: 2081 35 94 | 0 0 0 32768: 418 7 101 | 5 17 17 65536: 24 0 102 | 20 71 89 131072: 0 0 102 | 3 10 100 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 llite.lustre-ffff9eae4a64f000.read_ahead_stats= snapshot_time 1787822805.188138061 secs.nsecs start_time 1787822606.587413753 secs.nsecs elapsed_time 198.600724308 secs.nsecs hits 88735 samples [pages] misses 5925 samples [pages] readpage_not_consecutive 9048 samples [pages] zero_size_window 88736 samples [pages] failed_to_fast_read 5925 samples [pages] readahead_pages 5924 samples [pages] 2 15 88735