== sanity test 101a: check read-ahead for random reads === 22:23:14 (1776997394) nreads: 10000 file size: 96MB 180.733334s, 2.6496MB/s osc.lustre-OST0000-osc-ffff9dbe926b5000.rpc_stats= snapshot_time: 1776997596.152203780 secs.nsecs start_time: 1776997396.704128606 secs.nsecs elapsed_time: 199.448075174 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: 3 0 0 | 0 0 7 8: 7 0 0 | 0 0 7 16: 4782 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: 4792 100 100 | 25 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 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: 4 0 0 | 0 0 11 32: 7 0 0 | 0 0 11 64: 12 0 0 | 0 0 11 128: 21 0 1 | 0 0 11 256: 48 1 2 | 0 0 11 512: 101 2 4 | 0 0 11 1024: 181 3 7 | 1 3 14 2048: 418 8 16 | 2 7 22 4096: 788 16 33 | 4 14 37 8192: 1562 32 65 | 8 29 66 16384: 1645 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: 59 1 1 | 0 0 0 8192: 1828 38 39 | 1 3 3 16384: 2379 49 89 | 1 3 7 32768: 603 12 101 | 1 3 11 65536: 35 0 102 | 24 88 100 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 osc.lustre-OST0001-osc-ffff9dbe926b5000.rpc_stats= snapshot_time: 1776997596.152435950 secs.nsecs start_time: 1776997396.704181902 secs.nsecs elapsed_time: 199.448254048 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 | 2 66 66 16384: 0 0 0 | 1 33 100 llite.lustre-ffff9dbe926b5000.read_ahead_stats= snapshot_time 1776997596.172531450 secs.nsecs start_time 1776997396.770108662 secs.nsecs elapsed_time 199.402422788 secs.nsecs hits 71734 samples [pages] misses 4792 samples [pages] readpage_not_consecutive 7303 samples [pages] zero_size_window 71734 samples [pages] failed_to_fast_read 4792 samples [pages] readahead_pages 4792 samples [pages] 2 15 71734