== sanity test 101a: check read-ahead for random reads === 16:11:52 (1786565512) nreads: 10000 file size: 96MB 180.986379s, 3.2412MB/s osc.lustre-OST0000-osc-ffff8cdebf322800.rpc_stats= snapshot_time: 1786565719.105047628 secs.nsecs start_time: 1786565514.651211842 secs.nsecs elapsed_time: 204.453835786 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: 1 0 0 | 0 0 0 4: 5 0 0 | 0 0 0 8: 6 0 0 | 0 0 0 16: 5912 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: 5924 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 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: 19 0 0 | 0 0 4 128: 27 0 1 | 0 0 4 256: 61 1 2 | 0 0 4 512: 125 2 4 | 0 0 4 1024: 230 3 8 | 1 4 8 2048: 496 8 16 | 2 8 16 4096: 974 16 32 | 4 16 32 8192: 1939 32 65 | 8 32 64 16384: 2036 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: 1 0 0 | 0 0 0 4096: 421 7 7 | 0 0 0 8192: 3376 56 64 | 0 0 0 16384: 1889 31 95 | 0 0 0 32768: 355 5 101 | 1 4 4 65536: 22 0 102 | 18 72 76 131072: 0 0 102 | 6 24 100 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-ffff8cdebf322800.rpc_stats= snapshot_time: 1786565719.105310640 secs.nsecs start_time: 1786565514.651242161 secs.nsecs elapsed_time: 204.454068479 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-ffff8cdebf322800.read_ahead_stats= snapshot_time 1786565719.122550827 secs.nsecs start_time 1786565514.678228389 secs.nsecs elapsed_time 204.444322438 secs.nsecs hits 88702 samples [pages] misses 5924 samples [pages] readpage_not_consecutive 8946 samples [pages] zero_size_window 88702 samples [pages] failed_to_fast_read 5924 samples [pages] readahead_pages 5924 samples [pages] 1 15 88702