== sanity test 101a: check read-ahead for random reads === 14:54:25 (1787856865) nreads: 10000 file size: 96MB 180.767908s, 3.49527MB/s osc.lustre-OST0000-osc-ffff94f77f28b800.rpc_stats= snapshot_time: 1787857066.308423770 secs.nsecs start_time: 1787856867.433826706 secs.nsecs elapsed_time: 198.874597064 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: 1 0 0 | 0 0 0 2: 1 0 0 | 0 0 0 4: 2 0 0 | 0 0 0 8: 5 0 0 | 0 0 0 16: 6274 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 | 1 3 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6283 100 100 | 26 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 1 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 6 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 19 0 0 | 0 0 3 128: 29 0 1 | 0 0 3 256: 64 1 2 | 0 0 3 512: 120 1 3 | 1 3 7 1024: 243 3 7 | 1 3 11 2048: 534 8 16 | 2 7 19 4096: 1030 16 32 | 4 15 34 8192: 2070 32 65 | 8 30 65 16384: 2156 34 100 | 9 34 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 1 0 0 | 0 0 0 4096: 417 6 6 | 0 0 0 8192: 3720 59 65 | 0 0 0 16384: 2029 32 98 | 0 0 0 32768: 246 3 102 | 7 26 26 65536: 18 0 102 | 18 69 96 131072: 0 0 102 | 1 3 100 262144: 0 0 102 | 0 0 100 524288: 0 0 102 | 0 0 100 1048576: 0 0 102 | 0 0 100 2097152: 0 0 102 | 0 0 100 4194304: 0 0 102 | 0 0 100 8388608: 0 0 102 | 0 0 100 16777216: 0 0 102 | 0 0 100 33554432: 0 0 102 | 0 0 100 67108864: 0 0 102 | 0 0 100 134217728: 0 0 102 | 0 0 100 268435456: 0 0 102 | 0 0 100 536870912: 0 0 102 | 0 0 100 1073741824: 0 0 102 | 0 0 100 osc.lustre-OST0001-osc-ffff94f77f28b800.rpc_stats= snapshot_time: 1787857066.308564435 secs.nsecs start_time: 1787856867.433875104 secs.nsecs elapsed_time: 198.874689331 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 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff94f77f28b800.read_ahead_stats= snapshot_time 1787857066.363088105 secs.nsecs start_time 1787856867.453815280 secs.nsecs elapsed_time 198.909272825 secs.nsecs hits 94092 samples [pages] misses 6283 samples [pages] readpage_not_consecutive 9633 samples [pages] zero_size_window 94093 samples [pages] failed_to_fast_read 6283 samples [pages] readahead_pages 6282 samples [pages] 1 15 94092