== sanity test 101a: check read-ahead for random reads === 23:16:51 (1761103011) nreads: 10000 file size: 96MB 79.651391s, 8.22785MB/s osc.lustre-OST0000-osc-ffff8f6606945000.rpc_stats= snapshot_time: 1761103103.213102337 secs.nsecs start_time: 1761103012.015275681 secs.nsecs elapsed_time: 91.197826656 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 12 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 osc.lustre-OST0001-osc-ffff8f6606945000.rpc_stats= snapshot_time: 1761103103.213201040 secs.nsecs start_time: 1761103012.015337768 secs.nsecs elapsed_time: 91.197863272 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 8 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: 4 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 6441 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: 6450 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: 5 0 0 | 0 0 4 32: 7 0 0 | 0 0 4 64: 22 0 0 | 0 0 4 128: 32 0 1 | 0 0 4 256: 72 1 2 | 0 0 4 512: 137 2 4 | 0 0 4 1024: 265 4 8 | 1 4 8 2048: 555 8 17 | 2 8 16 4096: 1088 16 33 | 4 16 32 8192: 2160 33 67 | 8 32 64 16384: 2103 32 100 | 9 36 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff8f6606945000.read_ahead_stats= snapshot_time 1761103103.221506784 secs.nsecs start_time 1761103012.027231603 secs.nsecs elapsed_time 91.194275181 secs.nsecs hits 96610 samples [pages] misses 6450 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 96610 samples [pages] failed_to_fast_read 6450 samples [pages] readahead_pages 6450 samples [pages] 1 15 96610