== sanity test 101a: check read-ahead for random reads === 09:57:52 (1766415472) nreads: 10000 file size: 96MB 156.040588s, 4.19993MB/s osc.lustre-OST0000-osc-ffff9fcc47ccd800.rpc_stats= snapshot_time: 1766415643.355443218 secs.nsecs start_time: 1766415474.377357856 secs.nsecs elapsed_time: 168.978085362 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 | 1 50 50 16384: 0 0 0 | 1 50 100 osc.lustre-OST0001-osc-ffff9fcc47ccd800.rpc_stats= snapshot_time: 1766415643.355519879 secs.nsecs start_time: 1766415474.377432821 secs.nsecs elapsed_time: 168.978087058 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 | 2 7 7 2: 1 0 0 | 0 0 7 4: 4 0 0 | 0 0 7 8: 6 0 0 | 1 3 10 16: 6533 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: 6537 99 99 | 27 96 96 2: 9 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: 21 0 0 | 0 0 14 128: 29 0 1 | 0 0 14 256: 71 1 2 | 0 0 14 512: 135 2 4 | 0 0 14 1024: 265 4 8 | 1 3 17 2048: 547 8 16 | 2 7 25 4096: 1093 16 33 | 4 14 39 8192: 2158 32 66 | 8 28 67 16384: 2208 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: 474 7 7 | 0 0 0 8192: 4641 70 78 | 0 0 0 16384: 1560 23 101 | 3 10 10 32768: 26 0 102 | 6 21 32 65536: 0 0 102 | 19 67 100 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 llite.lustre-ffff9fcc47ccd800.read_ahead_stats= snapshot_time 1766415643.372825800 secs.nsecs start_time 1766415474.411762207 secs.nsecs elapsed_time 168.961063593 secs.nsecs hits 97994 samples [pages] misses 6546 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97996 samples [pages] failed_to_fast_read 6546 samples [pages] readahead_pages 6544 samples [pages] 1 15 97994