== sanity test 101a: check read-ahead for random reads === 06:03:07 (1789984987) nreads: 10000 file size: 96MB 85.625855s, 7.65376MB/s osc.lustre-OST0000-osc-ffff9ecebf594000.rpc_stats= snapshot_time: 1789985085.267212375 secs.nsecs start_time: 1789984987.868110349 secs.nsecs elapsed_time: 97.399102026 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 | 2 7 7 2: 1 0 0 | 0 0 7 4: 2 0 0 | 0 0 7 8: 4 0 0 | 0 0 7 16: 6424 99 100 | 0 0 7 32: 0 0 100 | 0 0 7 64: 0 0 100 | 0 0 7 128: 0 0 100 | 0 0 7 256: 0 0 100 | 0 0 7 512: 0 0 100 | 0 0 7 1024: 0 0 100 | 25 92 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6431 100 100 | 26 96 96 2: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 3 11 11 1: 0 0 0 | 0 0 11 2: 0 0 0 | 0 0 11 4: 0 0 0 | 0 0 11 8: 0 0 0 | 0 0 11 16: 5 0 0 | 0 0 11 32: 8 0 0 | 0 0 11 64: 21 0 0 | 0 0 11 128: 29 0 1 | 0 0 11 256: 69 1 2 | 0 0 11 512: 133 2 4 | 0 0 11 1024: 269 4 8 | 1 3 14 2048: 552 8 16 | 2 7 22 4096: 1101 17 34 | 4 14 37 8192: 2134 33 67 | 8 29 66 16384: 2105 32 100 | 9 33 100 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: 2547 39 39 | 0 0 0 4096: 2699 41 81 | 0 0 0 8192: 1238 19 100 | 7 25 25 16384: 99 1 102 | 13 48 74 32768: 1 0 102 | 7 25 100 65536: 0 0 102 | 0 0 100 131072: 0 0 102 | 0 0 100 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-ffff9ecebf594000.rpc_stats= snapshot_time: 1789985085.267416604 secs.nsecs start_time: 1789984987.868153354 secs.nsecs elapsed_time: 97.399263250 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 | 2 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 33 33 2: 0 0 0 | 2 66 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 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: 0 0 0 | 0 0 0 4096: 0 0 0 | 0 0 0 8192: 0 0 0 | 2 66 66 16384: 0 0 0 | 1 33 100 llite.lustre-ffff9ecebf594000.read_ahead_stats= snapshot_time 1789985085.273541527 secs.nsecs start_time 1789984987.874486914 secs.nsecs elapsed_time 97.399054613 secs.nsecs hits 96352 samples [pages] misses 6431 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 96352 samples [pages] failed_to_fast_read 6431 samples [pages] readahead_pages 6431 samples [pages] 1 15 96352