== sanity test 101d: file read with and without read-ahead enabled ========================================================== 06:47:53 (1775126873)
Create test file /mnt/lustre/f101d.sanity size 80M, 7358M free
80+0 records in
80+0 records out
83886080 bytes (84 MB, 80 MiB) copied, 10.6657 s, 7.9 MB/s
Cancel LRU locks on lustre client to flush the client cache
Disable read-ahead
0
Reading the test file /mnt/lustre/f101d.sanity with read-ahead disabled
Cancel LRU locks on lustre client to flush the client cache
Enable read-ahead with 40MB
Reading the test file /mnt/lustre/f101d.sanity with read-ahead enabled
read-ahead disabled time read '282.729'
read-ahead enabled time read '6.89658'
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete