Control: tags -1 + moreinfo On Tue, Aug 18, 2015 at 03:30:59PM +0200, Christoph Martin wrote: > Package: src:linux > Version: 3.16.7-ckt11-1+deb8u3~bpo70+1 > Severity: normal > File: /boot/vmlinuz-3.16.0-0.bpo.4-amd64 > > The drc (duplicate request cache) for NFS 4.1 in the vanilla kernel > has a fixed size only depending on the RAM of the machine. > > For example, when setting up a vm which should only serve as a > nfs referral server with 768 MB RAM it could only server about > 20 clients. So it is roughly 32 clients per GB. > > The problem is, that in nfssvc.c the size of drc is calculated with > a shift of NFSD_DRC_SIZE_SHIFT bits from the RAM size. > > I attach a patch for this which I also sent to linux-nfs. > (See http://www.spinics.net/lists/linux-nfs/msg51791.html) > > It implements a module variable to set the size on module load. > > It hope that such a patch can make it into Debian soon.
is this problem still relevant? Side note that we would anyway not apply a patch which would not have been accepted upstream, likely unless there are very valid reasons. Regards, Salvatore
