== sanity test 101a: check read-ahead for random reads === 17:35:26 (1717018526) nreads: 10000 file size: 96MB 32.469624s, 20.1838MB/s osc.lustre-OST0000-osc-ffff8800ab738000.rpc_stats= snapshot_time: 1717018561.125836920 secs.nsecs start_time: 1717018527.238953044 secs.nsecs elapsed_time: 33.886883876 secs.nsecs read RPCs in flight: 0 write 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 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 1 0 0 | 0 0 0 16: 6606 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: 6607 100 100 | 19 76 76 2: 0 0 100 | 6 24 100 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: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 19 0 0 | 0 0 4 128: 32 0 1 | 0 0 4 256: 74 1 2 | 0 0 4 512: 136 2 4 | 0 0 4 1024: 258 3 8 | 1 4 8 2048: 589 8 17 | 2 8 16 4096: 1117 16 33 | 4 16 32 8192: 2240 33 67 | 8 32 64 16384: 2123 32 100 | 9 36 100 osc.lustre-OST0001-osc-ffff8800ab738000.rpc_stats= snapshot_time: 1717018561.126009654 secs.nsecs start_time: 1717018527.239025064 secs.nsecs elapsed_time: 33.886984590 secs.nsecs read RPCs in flight: 0 write 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 llite.lustre-ffff8800ab738000.read_ahead_stats= snapshot_time 1717018561.132858432 secs.nsecs start_time 1717018527.243120281 secs.nsecs elapsed_time 33.889738151 secs.nsecs hits 99097 samples [pages] misses 6607 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 99097 samples [pages] failed_to_fast_read 6607 samples [pages]