== sanity test 101a: check read-ahead for random reads === 02:04:18 (1776924258) nreads: 10000 file size: 96MB 180.873995s, 1.7707MB/s osc.lustre-OST0000-osc-ffff8aacd046d000.rpc_stats= snapshot_time: 1776924466.142108512 secs.nsecs start_time: 1776924261.620147328 secs.nsecs elapsed_time: 204.521961184 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: 2 0 0 | 0 0 0 4: 3 0 0 | 0 0 0 8: 1 0 0 | 0 0 0 16: 3188 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: 3194 99 99 | 25 100 100 2: 1 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 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: 3 0 0 | 0 0 4 32: 3 0 0 | 0 0 4 64: 9 0 0 | 0 0 4 128: 15 0 1 | 0 0 4 256: 33 1 2 | 0 0 4 512: 64 2 4 | 0 0 4 1024: 122 3 7 | 1 4 8 2048: 280 8 16 | 2 8 16 4096: 526 16 33 | 4 16 32 8192: 1042 32 65 | 8 32 64 16384: 1095 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: 0 0 0 | 0 0 0 8192: 283 8 8 | 0 0 0 16384: 2028 63 72 | 0 0 0 32768: 922 28 101 | 0 0 0 65536: 36 1 102 | 21 84 84 131072: 0 0 102 | 4 16 100 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-ffff8aacd046d000.rpc_stats= snapshot_time: 1776924466.142720822 secs.nsecs start_time: 1776924261.620718291 secs.nsecs elapsed_time: 204.522002531 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-ffff8aacd046d000.read_ahead_stats= snapshot_time 1776924466.159989352 secs.nsecs start_time 1776924261.662079418 secs.nsecs elapsed_time 204.497909934 secs.nsecs hits 47829 samples [pages] misses 3195 samples [pages] readpage_not_consecutive 4886 samples [pages] zero_size_window 47830 samples [pages] failed_to_fast_read 3195 samples [pages] readahead_pages 3194 samples [pages] 1 15 47829