== sanity test 101a: check read-ahead for random reads === 21:36:49 (1763347009) nreads: 10000 file size: 96MB 164.861616s, 3.97521MB/s osc.lustre-OST0000-osc-ffff94f2596f7800.rpc_stats= snapshot_time: 1763347189.802753570 secs.nsecs start_time: 1763347011.009660835 secs.nsecs elapsed_time: 178.793092735 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 | 0 0 0 2: 1 0 0 | 0 0 0 4: 3 0 0 | 0 0 0 8: 5 0 0 | 0 0 0 16: 6535 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: 6535 99 99 | 25 100 100 2: 10 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 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: 6 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 19 0 0 | 0 0 4 128: 32 0 1 | 0 0 4 256: 69 1 2 | 0 0 4 512: 132 2 4 | 0 0 4 1024: 249 3 7 | 1 4 8 2048: 553 8 16 | 2 8 16 4096: 1078 16 32 | 4 16 32 8192: 2165 33 65 | 8 32 64 16384: 2229 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: 416 6 6 | 0 0 0 8192: 4327 66 72 | 0 0 0 16384: 1866 28 100 | 0 0 0 32768: 90 1 102 | 9 36 36 65536: 1 0 102 | 15 60 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 osc.lustre-OST0001-osc-ffff94f2596f7800.rpc_stats= snapshot_time: 1763347189.802892390 secs.nsecs start_time: 1763347011.009706322 secs.nsecs elapsed_time: 178.793186068 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 llite.lustre-ffff94f2596f7800.read_ahead_stats= snapshot_time 1763347189.816029301 secs.nsecs start_time 1763347011.019076397 secs.nsecs elapsed_time 178.796952904 secs.nsecs hits 98005 samples [pages] misses 6545 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98006 samples [pages] failed_to_fast_read 6545 samples [pages] readahead_pages 6544 samples [pages] 1 15 98005