== sanity test 101d: file read with and without read-ahead enabled ========================================================== 10:45:15 (1788360315)
Create test file /mnt/lustre/f101d.sanity size 80M, 7268M free
80+0 records in
80+0 records out
83886080 bytes (84 MB, 80 MiB) copied, 6.71386 s, 12.5 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 '151.881'
read-ahead enabled time read '4.95623'
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete