== sanity test 101a: check read-ahead for random reads === 01:04:46 (1780808686) nreads: 10000 file size: 96MB 49.123684s, 13.341MB/s osc.lustre-OST0000-osc-ffff987589395800.rpc_stats= snapshot_time: 1780808744.070436939 secs.nsecs start_time: 1780808686.848526227 secs.nsecs elapsed_time: 57.221910712 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 | 1 50 50 2: 0 0 0 | 1 50 100 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 | 1 50 50 4096: 0 0 0 | 1 50 100 osc.lustre-OST0001-osc-ffff987589395800.rpc_stats= snapshot_time: 1780808744.070489024 secs.nsecs start_time: 1780808686.848569169 secs.nsecs elapsed_time: 57.221919855 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: 3 0 0 | 2 1 1 2: 1 0 0 | 0 0 1 4: 1 0 0 | 0 0 1 8: 6 0 0 | 1 0 2 16: 4996 99 100 | 0 0 2 32: 0 0 100 | 0 0 2 64: 0 0 100 | 0 0 2 128: 0 0 100 | 0 0 2 256: 0 0 100 | 100 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5007 100 100 | 101 98 98 2: 0 0 100 | 1 0 99 3: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 4 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 5 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 52 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 426 8 16 | 8 7 18 4096: 855 17 34 | 16 15 33 8192: 1672 33 67 | 32 31 65 16384: 1631 32 100 | 36 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: 5 0 0 | 0 0 0 2048: 3826 76 76 | 0 0 0 4096: 1253 25 101 | 57 55 55 8192: 40 0 102 | 47 45 100 16384: 1 0 102 | 1 0 101 32768: 0 0 102 | 0 0 101 65536: 0 0 102 | 0 0 101 131072: 0 0 102 | 0 0 101 262144: 0 0 102 | 0 0 101 524288: 0 0 102 | 0 0 101 1048576: 0 0 102 | 0 0 101 2097152: 0 0 102 | 0 0 101 4194304: 0 0 102 | 0 0 101 8388608: 0 0 102 | 0 0 101 16777216: 0 0 102 | 0 0 101 33554432: 0 0 102 | 0 0 101 67108864: 0 0 102 | 0 0 101 134217728: 0 0 102 | 0 0 101 268435456: 0 0 102 | 0 0 101 536870912: 0 0 102 | 0 0 101 1073741824: 0 0 102 | 0 0 101 llite.lustre-ffff987589395800.read_ahead_stats= snapshot_time 1780808744.075609327 secs.nsecs start_time 1780808686.855765425 secs.nsecs elapsed_time 57.219843902 secs.nsecs hits 74958 samples [pages] misses 5007 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74960 samples [pages] failed_to_fast_read 5007 samples [pages] readahead_pages 5004 samples [pages] 1 15 74958