Alexandre Lecuyer wrote: > Hi list, > > We've had an interesting NFS performance issue with the following setup. > Clients : CentOS 5.5, kernel 2.6.18-194.el5 > Server : Solaris 10 kernel Generic_142901-08 > > Reading a file (not cached) with dd : dd if=file1 of=/dev/null > bs=1024k count=100 > performance is around.. 700 kB/s ! > > /proc/mounts shows rsize has been negotiated to 1mB Have you tested the same thing with a Linux NFS server? The CentOS 5.x kernel has a maximum server [rw]size of 32Kb, so you would need to use something with a more recent kernel to get [rw]sizes to be 1Mb. James Pearson