Hi,
On 28/01/18 07:48, Terry Barnaby wrote:
When doing a tar -xzf ... of a big source tar on an NFSv4 file system
the time taken is huge. I am seeing an overall data rate of about 1
MByte per second across the network interface. If I copy a single
large file I see a network data rate of about 110 MBytes/sec which is
about the limit of the Gigabit Ethernet interface I am using.
Now, in the past I have used the NFS "async" mount option to help with
write speed (lots of small files in the case of an untar of a set of
source files).
However, this does not seem to speed this up in Fedora27 and also I
don't see the "async" option listed when I run the "mount" command.
When I use the "sync" option it does show up in the "mount" list.
The question is, is the "async" option actually working with NFS v4 in
Fedora27 ?
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What server is in use? Is that Linux too? Also, is this v4.0 or v4.1?
I've copied in some of the NFS team who should be able to assist,
Steve.
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