== sanity test 101a: check read-ahead for random reads === 02:47:35 (1780382855) nreads: 10000 file size: 96MB 180.517281s, 2.6339MB/s osc.lustre-OST0000-osc-ffff97f4879bf000.rpc_stats= snapshot_time: 1780383057.146772273 secs.nsecs start_time: 1780382857.491808345 secs.nsecs elapsed_time: 199.654963928 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: 1 0 0 | 0 0 3 4: 1 0 0 | 0 0 3 8: 5 0 0 | 0 0 3 16: 4755 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: 4762 100 100 | 26 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 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: 7 0 0 | 0 0 7 64: 12 0 0 | 0 0 7 128: 21 0 1 | 0 0 7 256: 48 1 2 | 0 0 7 512: 100 2 4 | 0 0 7 1024: 180 3 7 | 1 3 11 2048: 415 8 16 | 2 7 19 4096: 785 16 33 | 4 15 34 8192: 1552 32 65 | 8 30 65 16384: 1633 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: 99 2 2 | 0 0 0 8192: 1835 38 40 | 1 3 3 16384: 2290 48 88 | 0 0 3 32768: 613 12 101 | 3 11 15 65536: 37 0 102 | 21 80 96 131072: 0 0 102 | 1 3 100 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-ffff97f4879bf000.rpc_stats= snapshot_time: 1780383057.146913301 secs.nsecs start_time: 1780382857.491843039 secs.nsecs elapsed_time: 199.655070262 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 | 2 50 50 2: 0 0 0 | 1 25 75 3: 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 | 1 25 25 16384: 0 0 0 | 2 50 75 32768: 0 0 0 | 1 25 100 llite.lustre-ffff97f4879bf000.read_ahead_stats= snapshot_time 1780383057.172215502 secs.nsecs start_time 1780382857.512433147 secs.nsecs elapsed_time 199.659782355 secs.nsecs hits 71321 samples [pages] misses 4762 samples [pages] readpage_not_consecutive 7251 samples [pages] zero_size_window 71321 samples [pages] failed_to_fast_read 4762 samples [pages] readahead_pages 4762 samples [pages] 1 15 71321