From: Alexandre Lecuyer <alex.ranskis at gmail.com> > 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 > /proc/mounts shows rsize has been negotiated to 1mB > If we force rsize to a smaller value, 32kB, the problem goes away and > we're back around 70/80 mB/s read performance. Not sure but the nfs faq says to look at /usr/include/linux/nfsd/const.h /* * Maximum blocksize supported by daemon currently at 32K */ #define NFSSVC_MAXBLKSIZE (32*1024) JD