== sanity test 101a: check read-ahead for random reads === 23:28:17 (1722482897) nreads: 10000 file size: 96MB 20.014075s, 32.745MB/s osc.lustre-OST0000-osc-ffff88012a55b000.rpc_stats= snapshot_time: 1722482918.540262475 secs.nsecs start_time: 1722482897.725870625 secs.nsecs elapsed_time: 20.814391850 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: 1 0 0 | 0 0 0 16: 6598 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: 6599 100 100 | 23 95 95 2: 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: 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: 73 1 2 | 0 0 4 512: 136 2 4 | 0 0 4 1024: 260 3 8 | 1 4 8 2048: 587 8 17 | 2 8 16 4096: 1117 16 33 | 4 16 33 8192: 2238 33 67 | 8 33 66 16384: 2118 32 100 | 8 33 100 osc.lustre-OST0001-osc-ffff88012a55b000.rpc_stats= snapshot_time: 1722482918.540499241 secs.nsecs start_time: 1722482897.725944205 secs.nsecs elapsed_time: 20.814555036 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 llite.lustre-ffff88012a55b000.read_ahead_stats= snapshot_time 1722482918.545764483 secs.nsecs start_time 1722482897.730407296 secs.nsecs elapsed_time 20.815357187 secs.nsecs hits 98967 samples [pages] misses 6599 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98967 samples [pages] failed_to_fast_read 6599 samples [pages]