Subject: Re: rpc xid randomness
To: None <blymn@baesystems.com.au>
From: Jun-ichiro itojun Hagino <itojun@itojun.org>
List: tech-security
Date: 09/09/2003 10:51:59
> On Mon, Sep 08, 2003 at 05:08:52PM -0400, Nathan J. Williams wrote:
> >
> > Have you measured it?
>
> Itojun posted some numbers - if I read those correctly there is a 1000
> times slowdown in the RPC calls. That is a rather large overhead even
> for an infreqent call.
could anyone with lmbench do lat_rpc with the old code?
the numbers i've posted (hoge.c) could be misleading, as (1) it only
measures the algorithm itself, not the impact to RPC code as a whole,
(2) it runs on userland so kernel-userland overhead like gettimeofday()
call which makes it inaccurate.
itojun