== sanity test 101a: check read-ahead for random reads === 23:22:47 (1717557767) nreads: 10000 file size: 96MB 18.241135s, 35.9276MB/s osc.lustre-OST0000-osc-ffff8800952d2000.rpc_stats= snapshot_time: 1717557791.926269421 secs.nsecs start_time: 1717557768.213271579 secs.nsecs elapsed_time: 23.712997842 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 5 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 osc.lustre-OST0001-osc-ffff8800952d2000.rpc_stats= snapshot_time: 1717557791.926438071 secs.nsecs start_time: 1717557768.213383879 secs.nsecs elapsed_time: 23.713054192 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 968 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: 4 0 0 | 0 0 0 16: 6269 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 | 24 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6273 100 100 | 4 16 16 2: 0 0 100 | 19 79 95 3: 0 0 100 | 1 4 100 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: 6 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 23 0 0 | 0 0 4 128: 37 0 1 | 0 0 4 256: 81 1 2 | 0 0 4 512: 153 2 5 | 0 0 4 1024: 294 4 9 | 1 4 8 2048: 651 10 20 | 2 8 16 4096: 1237 19 39 | 4 16 33 8192: 2368 37 77 | 8 33 66 16384: 1409 22 100 | 8 33 100 llite.lustre-ffff8800952d2000.read_ahead_stats= snapshot_time 1717557791.931528125 secs.nsecs start_time 1717557768.217513564 secs.nsecs elapsed_time 23.714014561 secs.nsecs hits 94035 samples [pages] misses 6273 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 94035 samples [pages] failed_to_fast_read 6273 samples [pages] readahead_pages 6273 samples [pages] 5 15 94035