> > I vote to drop the glibc wrappers. Just call the library calls directly > > to get the best performance (or use the kernel mods to get portability). I didnt understand what u mean by dropping glibc wrappers. AS far as I know PVFS has its own PVFS syscall wrappers, which in turn might invoke the kernel or PVFS I/O library. Kindly explain me if Iam wrong. thanks, Kums