Ubuntu
linux package

  1. Bug #1023755
  2. Comment #55

Comment 55 for bug 1023755

Revision history for this message
Vish Ishaya (vishvananda) wrote :

same crummy performance on quantal, so the bad performance may be unrelated:

vishvananda@nebstack006:~$ sudo dd if=/dev/zero of=/dev/mapper/clean1 bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 15.2082 s, 70.6 MB/s
vishvananda@nebstack006:~$ time sudo dd if=/dev/zero of=/dev/mapper/clean1 bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 8.00752 s, 134 MB/s

real 0m8.017s
user 0m0.008s
sys 0m1.116s