On Tue, Jan 30, 2018 at 04:49:41PM +0000, Terry Barnaby wrote:
I have just tried running the untar on our work systems. These are
again
Fedora27 but newer hardware.
I set one of the servers NFS exports to just rw (removed the async option in
/etc/exports and ran exportfs -arv).
Remounted this NFS file system on a Fedora27 client and re-ran the test. I
have only waited 10mins but the overal network data rate is in the order of
0.1 MBytes/sec so it looks like it will be a multiple hour job as at home.
So I have two completely separate systems with the same performance over
NFS.
With your NFS "sync" test are you sure you set the "sync" mode on the
server
and re-exported the file systems ?
Not being a daredevil, I use "sync" by default:
# exportfs -v /export
<world>(rw,sync,wdelay,hide,no_subtree_check,sec=sys,insecure,no_root_squash,no_all_squash)
For the "async" case I changed the options and actually rebooted, yes.
The filesystem is:
/dev/mapper/export-export on /export type ext4
(rw,relatime,seclabel,nodelalloc,stripe=32,data=journal)
(I think data=journal is the only non-default, and I don't remember why
I chose that.)
--b.