== sanity test 101a: check read-ahead for random reads === 11:39:45 (1780328385) nreads: 10000 file size: 96MB 180.103448s, 3.31458MB/s osc.lustre-OST0000-osc-ffff970e4fef8800.rpc_stats= snapshot_time: 1780328580.077991287 secs.nsecs start_time: 1780328386.956869041 secs.nsecs elapsed_time: 193.121122246 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: 1 0 0 | 0 0 0 8: 1 0 0 | 0 0 0 16: 6001 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: 6005 100 100 | 25 100 100 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: 20 0 0 | 0 0 4 128: 29 0 1 | 0 0 4 256: 62 1 2 | 0 0 4 512: 126 2 4 | 0 0 4 1024: 233 3 8 | 1 4 8 2048: 506 8 16 | 2 8 16 4096: 992 16 33 | 4 16 32 8192: 1977 32 65 | 8 32 64 16384: 2042 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: 326 5 5 | 0 0 0 8192: 3358 55 61 | 0 0 0 16384: 2177 36 97 | 0 0 0 32768: 281 4 102 | 22 88 88 65536: 4 0 102 | 3 12 100 131072: 0 0 102 | 0 0 100 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-ffff970e4fef8800.rpc_stats= snapshot_time: 1780328580.078127423 secs.nsecs start_time: 1780328386.956899468 secs.nsecs elapsed_time: 193.121227955 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-ffff970e4fef8800.read_ahead_stats= snapshot_time 1780328580.108513127 secs.nsecs start_time 1780328386.971832796 secs.nsecs elapsed_time 193.136680331 secs.nsecs hits 90005 samples [pages] misses 6005 samples [pages] readpage_not_consecutive 9104 samples [pages] zero_size_window 90006 samples [pages] failed_to_fast_read 6005 samples [pages] readahead_pages 6004 samples [pages] 1 15 90005