== sanity test 101a: check read-ahead for random reads === 12:35:22 (1752510922) nreads: 10000 file size: 96MB 68.351188s, 9.58813MB/s osc.lustre-OST0000-osc-ffff9351580fb800.rpc_stats= snapshot_time: 1752510999.891410495 secs.nsecs start_time: 1752510922.592698442 secs.nsecs elapsed_time: 77.298712053 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 osc.lustre-OST0001-osc-ffff9351580fb800.rpc_stats= snapshot_time: 1752510999.891517696 secs.nsecs start_time: 1752510922.592740557 secs.nsecs elapsed_time: 77.298777139 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: 0 0 0 | 0 0 0 8: 7 0 0 | 0 0 0 16: 6483 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: 6492 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: 21 0 0 | 0 0 4 128: 33 0 1 | 0 0 4 256: 70 1 2 | 0 0 4 512: 132 2 4 | 0 0 4 1024: 256 3 8 | 1 4 8 2048: 562 8 16 | 2 8 16 4096: 1092 16 33 | 4 16 32 8192: 2185 33 67 | 8 32 64 16384: 2123 32 100 | 9 36 100 llite.lustre-ffff9351580fb800.read_ahead_stats= snapshot_time 1752510999.901961651 secs.nsecs start_time 1752510922.598936556 secs.nsecs elapsed_time 77.303025095 secs.nsecs hits 97259 samples [pages] misses 6492 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97259 samples [pages] failed_to_fast_read 6492 samples [pages] readahead_pages 6491 samples [pages] 1 15 97259