Re: NFS client problem and IO blocksize

From: Trond Myklebust (trond.myklebust@fys.uio.no)
Date: Wed Jan 22 2003 - 08:41:43 EST


>>>>> " " == Oliver Tennert <tennert@science-computing.de> writes:

> As you can see, the actual server-side s_blksize is 4k, whereas
> the Linux client takes it to be 512 bytes. An strace output
> confirms that a "cat" of a file actually uses 512 byte IO
> chunks.

I'm taking the value from the NFSv3 'wtmult' attribute, which is
described thus in RFC1813:

      wtmult
         The suggested multiple for the size of a WRITE
         request.

If the AIX NFS server is returning 512 bytes, then that's what
'statfs' returns.

Cheers,
  Trond
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Jan 23 2003 - 22:00:29 EST