Hi Rick –
Tmem is primarily of use in PV guests, less so in dom0. Are
you putting pv_ops kernels in your PV guests (domUs)?
If so, Jeremy has been a big proponent of tmem and we can work
together to get it into his pv_ops tree. But I think most of the
focus for the pv_ops work has been to provide dom0 support. Upstream kernels
already provide domU support, so I’ve been instead working on the
linux-kernel-mailing-list toward getting tmem patches accepted upstream.
If not, just using a tmem-modified dom0 will probably not help
you. I have been working on tmem-modified rpm’s for various
RedHat-ish kernels and I know Jan Beulich has been working on putting tmem
support into various SuSE kernels.
I’d also be interested in more information about your
planned usage model for tmem.
From: Rick Boone
Sent: Thursday, May 13, 2010 4:17 PM
Subject: [Xen-devel] TMEM + pv_ops kernel?
I'm building Jeremy's pv_ops dom0 kernel (184.108.40.206) for use with Xen 4.0 and
it looks like the Transcendant Memory options arent in the kernel config. Is
TMEM not available in pv_ops? I've been looking forward to using it with Xen4,
but also really wanna work with pv_ops moving forward.