The Hurd

Marcus Brinkmann Marcus.Brinkmann at
Fri Mar 29 22:14:34 UTC 2002

On Fri, Mar 29, 2002 at 05:12:56AM +0100, Frank Heckenbach wrote:
> I'm no expert on this matter, but from what I've read I'm quite sure
> that IPC is not the issue. It's about context switching etc.,

One version of L4 for Intel does a synchronous RPC including context
switch in 400 cycles.  Which is pretty damn fast.

Or, to steal one of the phrases Linus likes to say himself (but about other
concepts): "If context switches are the problem, the solution is not to get
rid of them, but to make them fast."


`Rhubarb is no Egyptian god.' Debian brinkmd at
Marcus Brinkmann              GNU    marcus at
Marcus.Brinkmann at

More information about the Discussion mailing list