== sanity test 101a: check read-ahead for random reads === 04:48:33 (1787388513) nreads: 10000 file size: 96MB 180.271266s, 3.15772MB/s osc.lustre-OST0000-osc-ffff943745a5b000.rpc_stats= snapshot_time: 1787388712.124879250 secs.nsecs start_time: 1787388514.736033870 secs.nsecs elapsed_time: 197.388845380 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 | 0 0 0 2: 3 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 5687 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5693 99 99 | 25 100 100 2: 1 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 6 0 0 | 0 0 4 32: 7 0 0 | 0 0 4 64: 17 0 0 | 0 0 4 128: 24 0 1 | 0 0 4 256: 62 1 2 | 0 0 4 512: 120 2 4 | 0 0 4 1024: 213 3 7 | 1 4 8 2048: 487 8 16 | 2 8 16 4096: 934 16 32 | 4 16 32 8192: 1876 32 65 | 8 32 64 16384: 1943 34 100 | 9 36 100 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: 242 4 4 | 0 0 0 8192: 2846 49 54 | 0 0 0 16384: 2212 38 93 | 0 0 0 32768: 475 8 101 | 2 8 8 65536: 53 0 102 | 20 80 88 131072: 0 0 102 | 3 12 100 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-ffff943745a5b000.rpc_stats= snapshot_time: 1787388712.125009372 secs.nsecs start_time: 1787388514.736069232 secs.nsecs elapsed_time: 197.388940140 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 | 1 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 1 100 100 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 | 1 100 100 llite.lustre-ffff943745a5b000.read_ahead_stats= snapshot_time 1787388712.138154826 secs.nsecs start_time 1787388514.759467678 secs.nsecs elapsed_time 197.378687148 secs.nsecs hits 85293 samples [pages] misses 5694 samples [pages] readpage_not_consecutive 8681 samples [pages] zero_size_window 85293 samples [pages] failed_to_fast_read 5694 samples [pages] readahead_pages 5694 samples [pages] 1 15 85293