Testing Xen. Some quick questions.

[Jeremy Katz]

On Thu, 2006-02-09 at 01:30 +0100, Jos Vos wrote:
> On Wed, Feb 08, 2006 at 07:24:49PM -0500, Jeremy Katz wrote:
> 
> > On Thu, 2006-02-09 at 01:20 +0100, Jos Vos wrote:
> 
> > > Unless you use a glibc compiled with "-mno-tls-direct-seg-refs"
> > > (added to BuildFlags in the glibc spec file), recommended, AFAIK.
> > > B.t.w., what are the drawbacks of this?
> > 
> > You lose decent threading (NPTL).  Also, you can't do this with fc5 as
> 
> But not with the "-mno-tls-...", right?  I was asking for the drawbacks
> of using glibc compiled with this flag: so, why is glibc only generated
> that way for use with Xen?

ISTR there being a performance difference

Jeremy