== sanity test 101a: check read-ahead for random reads === 04:45:20 (1743497120) nreads: 10000 file size: 96MB 180.978452s, 3.39633MB/s osc.lustre-OST0000-osc-ffffa00f20cbc000.rpc_stats= snapshot_time: 1743497329.233369965 secs.nsecs start_time: 1743497123.821844156 secs.nsecs elapsed_time: 205.411525809 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 | 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-ffffa00f20cbc000.rpc_stats= snapshot_time: 1743497329.233664124 secs.nsecs start_time: 1743497123.822019584 secs.nsecs elapsed_time: 205.411644540 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 | 0 0 0 2: 2 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 6 0 0 | 0 0 0 16: 4704 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 | 100 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4710 99 99 | 99 99 99 2: 2 0 100 | 1 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 26 0 1 | 0 0 1 256: 48 1 2 | 1 1 2 512: 100 2 4 | 2 2 4 1024: 191 4 8 | 4 4 8 2048: 403 8 16 | 8 8 16 4096: 806 17 34 | 16 16 32 8192: 1564 33 67 | 32 32 64 16384: 1545 32 100 | 36 36 100 llite.lustre-ffffa00f20cbc000.read_ahead_stats= snapshot_time 1743497329.289194038 secs.nsecs start_time 1743497123.905732003 secs.nsecs elapsed_time 205.383462035 secs.nsecs hits 70568 samples [pages] misses 4712 samples [pages] readpage_not_consecutive 9372 samples [pages] zero_size_window 70568 samples [pages] failed_to_fast_read 4712 samples [pages] readahead_pages 4712 samples [pages] 1 15 70568