== sanity test 101a: check read-ahead for random reads === 22:13:27 (1788920007) nreads: 10000 file size: 96MB 174.047811s, 3.7654MB/s osc.lustre-OST0000-osc-ffff9fc17f42b000.rpc_stats= snapshot_time: 1788920203.255509407 secs.nsecs start_time: 1788920008.966695006 secs.nsecs elapsed_time: 194.288814401 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 7 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 6 0 0 | 0 0 7 16: 6594 99 100 | 0 0 7 32: 0 0 100 | 0 0 7 64: 0 0 100 | 0 0 7 128: 0 0 100 | 0 0 7 256: 0 0 100 | 0 0 7 512: 0 0 100 | 0 0 7 1024: 0 0 100 | 25 92 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6600 100 100 | 24 88 88 2: 0 0 100 | 3 11 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 3 11 11 1: 0 0 0 | 0 0 11 2: 0 0 0 | 0 0 11 4: 0 0 0 | 0 0 11 8: 0 0 0 | 0 0 11 16: 5 0 0 | 0 0 11 32: 7 0 0 | 0 0 11 64: 22 0 0 | 0 0 11 128: 32 0 1 | 0 0 11 256: 71 1 2 | 0 0 11 512: 136 2 4 | 0 0 11 1024: 262 3 8 | 1 3 14 2048: 550 8 16 | 2 7 22 4096: 1084 16 32 | 4 14 37 8192: 2155 32 65 | 8 29 66 16384: 2272 34 100 | 9 33 100 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: 1146 17 17 | 0 0 0 8192: 3796 57 74 | 0 0 0 16384: 1490 22 97 | 0 0 0 32768: 288 4 101 | 2 7 7 65536: 34 0 102 | 12 44 51 131072: 0 0 102 | 13 48 100 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-ffff9fc17f42b000.rpc_stats= snapshot_time: 1788920203.255654597 secs.nsecs start_time: 1788920008.966902458 secs.nsecs elapsed_time: 194.288752139 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 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 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 33 33 32768: 0 0 0 | 2 66 100 llite.lustre-ffff9fc17f42b000.read_ahead_stats= snapshot_time 1788920203.266989005 secs.nsecs start_time 1788920008.980241142 secs.nsecs elapsed_time 194.286747863 secs.nsecs hits 98904 samples [pages] misses 6600 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98904 samples [pages] failed_to_fast_read 6600 samples [pages] readahead_pages 6600 samples [pages] 4 15 98904