I copy a 32G file from and to the nfs directory and duration is as below. # time cp LX5.5V0.9.img LX5.5V1.1.img real 13m54.425s user 0m4.155s sys 0m18.556s client is here , I haven’t got the server’s result, NAS engineer is not here. # nfsstat -n -c Client nfs v3: null getattr setattr lookup access readlink 0 0% 21 0% 0 0% 38 0% 9 0% 0 0% read write create mkdir symlink mknod 1009154 87% 150378 12% 1 0% 0 0% 0 0% 0 0% remove rmdir rename link readdir readdirplus 3 0% 0 0% 0 0% 0 0% 0 0% 5 0% fsstat fsinfo pathconf commit 5 0% 2 0% 1 0% 72 0% Best Regards, Yang Yi(杨�D) Mobile Internet Division 说明: 说明: cid:[email protected] Neusoft Corporation A6 Bldg. No.2 Xin Xiu Street Hun Nan New District, Shenyang 110179 P.R.C. Mobile: +86-186 2407 4299 E-mail: [email protected] http://www.neusoft.com <http://www.neusoft.com/> 发件人: Nikolay Gar [mailto:[email protected]] 发送时间: 2012年2月26日 19:31 收件人: 杨�D 抄送: [email protected]; [email protected] 主题: Re: [one-users] question about OpenNebula + NFS performance nfsstat from client and nfs server will help: 1. nfsstat -n -c for client 2. nfsstat -n -s for server Just for test, do not test it on VM machine , simple copy some file over NFS ( some big file not /dev/null some 5 GB) with time command before test Nikolay 2012/2/26 杨�D <[email protected]> Hi I set up virtual machine with OpenNebula2.2 + NFS(NAS Huawei Symantec). And the virtualization environment is rhel6.1 + kvm. But the vm is running very slow. In the vm system, gunzip a gz file takes very long time. the nfs server(NAS) is suse10 with nfs version 3. the nfs client is rhel6.1 mount -t nfs -o timeo=10,noatime,intr,hard,retrans=5 172.16.14.115:/vx/B1ALL /one_images I tried to install two img systems at the same time on the nfs, the %CPU is high. and the installation progress takes very long too. So I wonder if the nfs can provide better performance for the vm ? How can I tune the nfs server and client parameters to enhance nfs performance ? Thank you very much. ---------------------------------------------------------------------------- ----------------------- Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from your system. Thank you. ---------------------------------------------------------------------------- ----------------------- _______________________________________________ Users mailing list [email protected] http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
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