On 01/29/18 17:40, Terry Barnaby wrote: > Now I understand that NFS's latency with writes is a performance bottleneck, but in > the past I have used the "async" mount option to good effect to minimise this. It > does not appear to have any effect on my systems. The "async" mount option is not > listed when you run "mount" to get a list of the mounts on the client. Pardon the brevity of this response. I see pretty much the same numbers as you're seeing. Sever and Client are both F27 and in my case both ends have SSD and the links are 1000Mb/s. However, I'm not convinced the "issue" is related to write performance. The reason I say this is if do this on the client side tar -zcf lin.tar f27k/linux-4.14.15/ meaning I'm reading from the server to create the tar. The numbers were nearly identical. I think it may be more that the tar file has many (61337) files. Most of them rather small. FWIW, I also performed the tests using vers=3 of nfs with slightly better numbers on average. -- A motto of mine is: When in doubt, try it out
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