On Tue, Dec 05, 2023 at 02:06:44PM +0000, Steven Surdock wrote:
> Using an OBSD 7.4 VM on VMware as an NFS server on HOST02. It is primarily used to store VMWare VM backups from HOST01, so VMWare is the NFS client. I'm seeing transfers of about 1.2 MB/s.
>
> SCP from HOST01 to OBSD VM (same filesystem) copies at 110 MB/s.
> Iperf3 from a VM on HOST01 to OBSD on HOST02 gives me 900+ mbps.
> OBSD is a stock install running -stable.
> NFS is using v3 (according to VMWare) and using TCP
> During the NFS transfer the RECV-Q on the OBSD interface runs either 64000+ or 0.
> I tried both em and vmx interface types.
>
> /etc/rc.conf.local:
> mountd_flags="" # for normal use: ""
> nfsd_flags="-tun 4" # Crank the 4 for a busy NFS fileserver
> ntpd_flags="" # enabled during install
> portmap_flags="" # for normal use: ""
>
> Any clues on where to look to (greatly) improve NFS performance would be appreciated.
Increasing write size, read size and the read-ahead count on the client has helped me.
E.g., on the client's fstab:
10.17.18.10:/shared/stuff /nfs/stuff nfs rw,nodev,nosuid,intr,tcp,bg,noatime,-a=4,-r=32768,-w=32768 0 0
Cheers
Zé
>
> -Steve S.
>
--
No comments:
Post a Comment