On 28 January 2018 at 07:48, Terry Barnaby <ter...@beam.ltd.uk> 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 ? > Usually big NFS speed degradation is possible to observe when there is no running rpcbind on the NFS client or communication whit this process is blocked by FW. kloczek -- Tomasz Kłoczko | LinkedIn: http://lnkd.in/FXPWxH > _______________________________________________ > devel mailing list -- devel@lists.fedoraproject.org > To unsubscribe send an email to devel-le...@lists.fedoraproject.org >
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