== sanity test 101a: check read-ahead for random reads === 06:14:07 (1744020847) nreads: 10000 file size: 96MB 43.753977s, 14.9783MB/s osc.lustre-OST0000-osc-ffff88007eb34800.rpc_stats= snapshot_time: 1744020898.486236611 secs.nsecs start_time: 1744020847.565430902 secs.nsecs elapsed_time: 50.920805709 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 | 3 75 75 2: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 1 25 75 4: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88007eb34800.rpc_stats= snapshot_time: 1744020898.486299220 secs.nsecs start_time: 1744020847.565453345 secs.nsecs elapsed_time: 50.920845875 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 3 3 2: 0 0 0 | 1 3 7 4: 0 0 0 | 0 0 7 8: 4 0 0 | 1 3 10 16: 6325 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6329 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 5 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 20 0 0 | 0 0 14 128: 33 0 1 | 0 0 14 256: 72 1 2 | 0 0 14 512: 135 2 4 | 0 0 14 1024: 260 4 8 | 1 3 17 2048: 567 8 17 | 2 7 25 4096: 1103 17 34 | 4 14 39 8192: 2173 34 69 | 8 28 67 16384: 1947 30 100 | 9 32 100 llite.lustre-ffff88007eb34800.read_ahead_stats= snapshot_time 1744020898.489110004 secs.nsecs start_time 1744020847.571465984 secs.nsecs elapsed_time 50.917644020 secs.nsecs hits 94877 samples [pages] misses 6329 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 94877 samples [pages] failed_to_fast_read 6329 samples [pages] readahead_pages 6329 samples [pages] 5 15 94877