Anyone? Ced On 23 April 2014 23:03, Cedric Blancher <cedric.blancher@xxxxxxxxx> wrote: > What are the criteria for grating a file delegation in NFSv4? Are file > delegations retained even if a process closes a file and the next > process in the chain opens it again (e.g. in a shell script)? > > Ced > > PS: Who again grants NFSv4 delegations? Server or client? Do > delegations work when data are appended at the end of a file? > > ---------- Forwarded message ---------- > From: Cedric Blancher <cedric.blancher@xxxxxxxxx> > Date: 23 April 2014 20:01 > Subject: Tuning Linux NFSv4 for high latency connections? > To: Linux NFS Mailing List <linux-nfs@xxxxxxxxxxxxxxx> > > > Are there any options to improve the Linux NFSv4 performance over a > high latency connection? > > We currently use Solaris/Illumos as NFSv4 server and client over a > cross continental Internet connection. Latency is terrible (~220ms) > but the counter this by running work in parallel so the latency is > mostly mitigated. > > We now wish to migrate (short: Away from Oracle because support is > basically unbearable) to Linux (tested SuSE 13.1 and current Fedora) > and build times are 17 times (!!!) SLOWER than on Solaris/Illumos. > > Are there any tunables besides actimeo=300? > > Ced > -- > Cedric Blancher <cedric.blancher@xxxxxxxxx> > Institute Pasteur > > > -- > Cedric Blancher <cedric.blancher@xxxxxxxxx> > Institute Pasteur -- Cedric Blancher <cedric.blancher@xxxxxxxxx> Institute Pasteur -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
