NFS performance over high latency is poor

NFS performance over high latency is poor, rsync over ssh is about ...

We are using rsync to synchronize data from two NFS servers. One NFS server is on the east coast, the other is on west coast. RTT is about 110ms.

May I ask why? My experience with NFS is pretty bad performance ...

Not sure why NFS gets such a bad rap. On a low-latency network, properly tuned NFS has very few, if any performance issues. I've personally seen read/write ...

NFS v4 over higher latency network (Internet)? - LowEndTalk

I have a setup that has local NFS servers (1-2ms), that I have to migrate and have the service going. In order to do this, I would utilize ...

NFS poor write performance - Server Fault

You have a pretty well-rounded test case, but I'd try mounting on the server itself and writing from there, that way you can figure out if the ...

Troubleshooting NFS performance issues with nfsiostat and nfsstat

High average time for RTT and a high number of transmissions point to a high latency problem in the NFS system that makes the connection between NFS client and ...

nfs/cifs/sshfs large file transfers all much slower than network - Reddit

cifs and nfs are prone to slower speeds if the latency is high. Basically cifs/nfs dont work on streams but on blocks and they have internal ...

Using nfsstat and nfsiostat to troubleshoot NFS performance issues ...

A very high avg RTT(ms) and retrans indicates there is high latency on the network. High latency also affects the I/O performance, because ...

NFS V4 performance is dreadful : r/sysadmin - Reddit

I even tried with dedicated ipsec tunnels with <10ms latency and NFS performance was not at all useable compared to standard NFS servers on the ...

NFS Read Performance over WAN (70 Miles) ? - LinuxQuestions.org

A ping from the “local” server to the NFS sever averages 0.200 MS. From the “remote” server the ping averages 1.652 MS. Using SCP to copy the ...

Possible causes for high NFS latency - Resolution Guide

... in connection with the NetApp products discussed in this document. ... nfs slow response · nfs throughput issue · Troubleshooting Workflow · type ...

Poor performance over NFS - Proxmox Support Forum

Issue: Slow write performance when measured via dd over the NFS mount from the storage server connected to the virtualization node.

Bound by the Speed of Light - ACM Queue

To understand why latency is killing your performance, it pays to understand how the NFS protocol works, at least at a basic level. NFS is a ...

NFS performance is slow without any latency increasing in ONTAP

The IOPS and throughput of NFS suddenly decrease without an increase in latency. Example from ONTAP System Manager GUI:.

Performance issues with NFS shared storage - Broadcom Community

The CPU/Memory usage rate of VM and host server is very low. Reading or writing data from the VM is very slow. When I run the FIO test on the VM ...

Chapter 3, Analyzing NFS Performance

When you first set up the NFS server, you need to tune it for optimal performance. Later, in response to a particular problem, you need to tune the server again ...

NFS performances -- nfsiostat interpretation of results

the avg RTT seems to be the key datas indicating the NFS is well/badly working. I can not state that “100.234” is a high latency or a low ...

Impact of Network Latency - USENIX

10ms) and the NFS performance degrades faster than iSCSI for higher latencies. Even though NFS v3 runs over TCP, an Ethereal trace reveals an increasing number ...

5. Optimizing NFS Performance

To correct network problems, you may wish to reconfigure the packet size that your network card uses. Very often there is a constraint somewhere else in the ...

Performance Evaluation of NFS over a Wide-Area Network - Hal-Inria

NFSv4 is faster than NFSv3 on a high latency network. NFSv3 is faster than NFSv4 on a low latency network. NFSv3 can tolerate high latency more than NFSv2 [3].

NFS performance problems - large file writes slow system severely

Before you do anything else make sure that you don't simply have network problems. Specifically mismatched speed/duplex settings between the ...