Am 16.02.2016 um 11:02 schrieb Martin Waschbüsch: > >> Am 16.02.2016 um 10:32 schrieb Stefan Priebe - Profihost AG >> <s.pri...@profihost.ag>: >> >> Am 16.02.2016 um 09:57 schrieb Martin Waschbüsch: >>> Hi Stefan, >> >>>> This is PVE 3.4 running Qemu 2.4 >>> >>> To me this looks like the compression is the limiting factor? What speed do >>> you get for this NFS mount when just copying an existing file? >> >> Which compression? There is only FS compression on the target side >> involed. I'm not using any compression on the source side. > > Sorry, reading the 26MB/s I just assumed it sort of HAD to be compressed for > it to be so slow... > What kind of storage backend do you use for the images on the source side?
Storage Backend is ceph using 2x 10Gbit/s and i'm able to read from it with 500-1500MB/s. See below for an example. > Can you dd a disk image from that backend to the nfs mount with good speed? Yes. # time rbd -p cephstor4 export vm-264-disk-1 abc.img Exporting image: 100% complete...done. real 1m30.828s user 1m3.858s sys 0m43.645s # du -h abc.img 30G abc.img Stefan _______________________________________________ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
