On Mon, Jan 4, 2010 at 12:49 AM, unix syzadmin <unixsyzadmin@xxxxxxxxx> wrote: > Eugene, > > Thanks for all your response. > I still wonder how the nfs writes go fine when their is enough free memory. > We did some dd tests writing and reading 16GB file to NFS filesystem in 64K > chunks. > >From vmstat we see a lot of memory was freed during read operation, but not > wirte. Could this be the reason? All memory should be used for cache unless an application/kernel requests it. What does the network configuration look like for this virtual machine and its physical host? How much other traffic are the vswitches carrying? Do you have a 1-to-1 mapping of physical to virtual nics, and a dedicated network? Are the frame sizes correctly matched between the physical switches and physical ports and vswitches and their ports? -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
