Displaying 1 result from an estimated 1 matches for "verejna".
2010 Dec 13
3
Slow I/O on ocfs2 file system
Hello,
I have found, that ocfs2 is very slow when doing I/O operation without
cache. See a simple test:
ng-vvv1:~# dd if=/data/verejna/dd-1G bs=1k | dd of=/dev/null
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB) copied, 395.183 s, 2.7 MB/s
2097152+0 records in
2097152+0 records out
1073741824 bytes (1.1 GB) copied, 395.184 s, 2.7 MB/s
The underlying block device is quite quick:
ng-vvv1:~# dd if=/dev/mapper/...