== sanity test 101a: check read-ahead for random reads === 04:03:51 (1788595431) nreads: 10000 file size: 96MB 180.420611s, 2.78569MB/s osc.lustre-OST0000-osc-ffff8e5fbe172000.rpc_stats= snapshot_time: 1788595630.146231301 secs.nsecs start_time: 1788595432.944682377 secs.nsecs elapsed_time: 197.201548924 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: 1 0 0 | 0 0 0 4: 3 0 0 | 0 0 0 8: 5 0 0 | 0 0 0 16: 5056 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: 5066 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: 4 0 0 | 0 0 4 32: 7 0 0 | 0 0 4 64: 13 0 0 | 0 0 4 128: 21 0 1 | 0 0 4 256: 54 1 2 | 0 0 4 512: 109 2 4 | 0 0 4 1024: 189 3 7 | 1 4 8 2048: 443 8 16 | 2 8 16 4096: 838 16 33 | 4 16 32 8192: 1654 32 65 | 8 32 64 16384: 1728 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: 118 2 2 | 0 0 0 8192: 2214 43 46 | 0 0 0 16384: 2210 43 89 | 0 0 0 32768: 594 11 101 | 3 12 12 65536: 48 0 102 | 21 84 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-ffff8e5fbe172000.rpc_stats= snapshot_time: 1788595630.146368829 secs.nsecs start_time: 1788595432.944720445 secs.nsecs elapsed_time: 197.201648384 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-ffff8e5fbe172000.read_ahead_stats= snapshot_time 1788595630.162258311 secs.nsecs start_time 1788595432.963510780 secs.nsecs elapsed_time 197.198747531 secs.nsecs hits 75834 samples [pages] misses 5066 samples [pages] readpage_not_consecutive 7665 samples [pages] zero_size_window 75835 samples [pages] failed_to_fast_read 5066 samples [pages] readahead_pages 5065 samples [pages] 1 15 75834