Timing buffered disk reads: 328 MB in 3.01 seconds = 108.80 MB/sec [root@localhost root2]# time sh -c “dd if=/dev/zero of=tmp.dd bs=1000k count=100; sync” 100+0 records in 100+0 records out 102400000 bytes (102 MB) copied, 0.401913 s, 255 MB/s
Timing buffered disk reads: 328 MB in 3.01 seconds = 108.97 MB/sec
time sh -c “dd if=/dev/zero of=tmp.dd bs=1000k count=100; sync”
[root@localhost root2]# time sh -c “dd if=/dev/zero of=tmp.dd bs=1G count=100; sync”
^C5+1 records in 5+0 records out 5368709120 bytes (5.4 GB) copied, 61.3353 s, 87.5 MB/s ^C
real 1m1.642s user 0m0.002s sys 0m20.881s