== sanity test 101a: check read-ahead for random reads === 10:25:42 (1790691942) nreads: 10000 file size: 96MB 180.553677s, 3.29216MB/s osc.lustre-OST0000-osc-ffff8e8945b50000.rpc_stats= snapshot_time: 1790692142.114782430 secs.nsecs start_time: 1790691943.901059109 secs.nsecs elapsed_time: 198.213723321 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: 1 0 0 | 0 0 0 2: 3 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 3 0 0 | 0 0 0 16: 5951 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: 5958 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 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: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 18 0 0 | 0 0 4 128: 26 0 1 | 0 0 4 256: 62 1 2 | 0 0 4 512: 124 2 4 | 0 0 4 1024: 227 3 7 | 1 4 8 2048: 510 8 16 | 2 8 16 4096: 972 16 32 | 4 16 32 8192: 1971 33 65 | 8 32 64 16384: 2029 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: 300 5 5 | 0 0 0 8192: 3232 54 59 | 0 0 0 16384: 2173 36 95 | 0 0 0 32768: 384 6 102 | 2 8 8 65536: 10 0 102 | 22 88 96 131072: 0 0 102 | 1 4 100 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-ffff8e8945b50000.rpc_stats= snapshot_time: 1790692142.115222450 secs.nsecs start_time: 1790691943.901095166 secs.nsecs elapsed_time: 198.214127284 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 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff8e8945b50000.read_ahead_stats= snapshot_time 1790692142.125720179 secs.nsecs start_time 1790691943.922097618 secs.nsecs elapsed_time 198.203622561 secs.nsecs hits 89260 samples [pages] misses 5958 samples [pages] readpage_not_consecutive 9065 samples [pages] zero_size_window 89261 samples [pages] failed_to_fast_read 5958 samples [pages] readahead_pages 5957 samples [pages] 1 15 89260