Hi，
I know ceph can re-export nfs protocol,but there are something confuse me during the test. Here is the command I used.
"dd if=/dev/zeof of=/mnt/ceph/test.bat bs=4M count=1000"
The results are as follows:
ceph:62 MB/s
nfs:26MB/s
There are 3 OSDs,1 MON and 1 MDS in the ceph cluster. And I do this test using the in-kernel client.
I was confused by two things during the test on nfs.
1. The "dd" command will call mknod to create a file,but mknod will creates a FIFO, character special file, or block special file with the specified name.(It will call lookup_open to create a file during the test on ceph,)
2.There are sometimes no network traffic during the test on nfs.(I use the command "sar" to monitor the local LAN network traffic )
Thanks in advance!
Cheng.?韬{.n?????%??檩??w?{.n????u朕?Ф?塄}?财??j:+v?? ? ???2??璀??摺?囤??z夸z罐?+?????w棹f
