Hello, I am trying to do random sector aligned writes to an NFS mounted disk. The performance is order of magnitude worse than 4K (file system block size) aligned I/O. The reason is that NFS demon (Linux kernel 2.6.32) on the server side always does buffered I/O, which behaves poorly for block unaligned requests. Is there a way to tell NFS daemon to use direct I/O? If not, is it an implementation limitation or there is a fundamental problem with using direct I/O in NFS server? Thank you, Alex -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
