On Fri, Mar 13, 2009 at 2:40 PM, Trond Myklebust <trond.myklebust@xxxxxxxxxx> wrote: > Do you perhaps see a lot of sockets connected to port 2049 and that are > not in the TCP_ESTABLISHED state when you do 'netstat -nt' on the > server? Only one tcp socket from the client to the server (no other clients need to be active when running the testcase). > What is the ratio of 'write' to 'commit' operations when you look at the > 'nfsstat -s' output (also on the server)? It appears to be about 3-4 to 1 writes to commits. By far the heaviest activity is with getattr calls with 60-75% of the activity. # nfsstat -s Server rpc stats: calls badcalls badauth badclnt xdrcall 21044536 0 0 0 0 Server nfs v3: null getattr setattr lookup access readlink 30 0% 12977249 61% 267095 1% 1201529 5% 3030825 14% 4816 0% read write create mkdir symlink mknod 722160 3% 1369511 6% 242484 1% 2852 0% 103 0% 1 0% remove rmdir rename link readdir readdirplus 218097 1% 4354 0% 189125 0% 284 0% 1569 0% 139267 0% fsstat fsinfo pathconf commit 3930 0% 554 0% 272 0% 610240 2% And the activity around the time I am reproducing the slowdown: Server nfs v3: null getattr setattr lookup access readlink 0 0% 3503 75% 7 0% 31 0% 1027 22% 0 0% read write create mkdir symlink mknod 9 0% 50 1% 6 0% 0 0% 0 0% 0 0% remove rmdir rename link readdir readdirplus 2 0% 0 0% 2 0% 0 0% 0 0% 0 0% fsstat fsinfo pathconf commit 0 0% 0 0% 0 0% 13 0% -Dave -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
