== sanity test 101a: check read-ahead for random reads === 06:23:45 (1787394225) nreads: 10000 file size: 96MB 180.488781s, 3.06168MB/s osc.lustre-OST0000-osc-ffff931809af2800.rpc_stats= snapshot_time: 1787394426.144369629 secs.nsecs start_time: 1787394227.382498274 secs.nsecs elapsed_time: 198.761871355 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 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff931809af2800.rpc_stats= snapshot_time: 1787394426.144449541 secs.nsecs start_time: 1787394227.382802540 secs.nsecs elapsed_time: 198.761647001 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: 2 0 0 | 0 0 0 2: 1 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 6 0 0 | 0 0 0 16: 5544 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5554 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 4 0 0 | 0 0 4 32: 7 0 0 | 0 0 4 64: 15 0 0 | 0 0 4 128: 24 0 1 | 0 0 4 256: 57 1 2 | 0 0 4 512: 119 2 4 | 0 0 4 1024: 203 3 7 | 1 4 8 2048: 484 8 16 | 2 8 16 4096: 907 16 32 | 4 16 32 8192: 1828 32 65 | 8 32 64 16384: 1900 34 100 | 9 36 100 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: 216 3 3 | 0 0 0 8192: 2849 51 55 | 0 0 0 16384: 2174 39 94 | 0 0 0 32768: 427 7 102 | 1 4 4 65536: 19 0 102 | 23 92 96 131072: 0 0 102 | 1 4 100 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-ffff931809af2800.read_ahead_stats= snapshot_time 1787394426.163924452 secs.nsecs start_time 1787394227.404680904 secs.nsecs elapsed_time 198.759243548 secs.nsecs hits 83179 samples [pages] misses 5554 samples [pages] readpage_not_consecutive 8427 samples [pages] zero_size_window 83181 samples [pages] failed_to_fast_read 5554 samples [pages] readahead_pages 5552 samples [pages] 1 15 83179