On Tue, Apr 04, 2006 at 01:36:54AM -0700, Greg Lindahl wrote: > On Mon, Apr 03, 2006 at 09:36:00PM -0700, Grant Grundler wrote: > > > The only evidence I have is one AMD chipset is buggy WRT MSI. > > Grant, > > I know about that case, the kernel disables stuff if it sees an AMD > 8131 due to a bug. What I am referring to was IPoIB performance on > Mellanox HCAs being improved with MSI. I figure if it's gotten this > far with Red Hat turning it off, concrete examples are in order.
I understood and I'm trying to provide an argument for turning MSI support back ON. I'm very aware of the impact that MSI has on performance: http://iou.parisc-linux.org/ols_2002/porting_zx1.pdf http://iou.parisc-linux.org/ols_2004/pfmon_for_iodorks.pdf Search for "MSI" in either pdf. I might have some of the minor details wrong in either paper. Please send corrections to me privately only if there are gross errors of fact. thanks, grant _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
