Re: [Ksummit-2012-discuss] SCSI Performance regression [was Re: [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6]

[Christoph Lameter <cl@xxxxxxxxx>]

On Fri, 6 Jul 2012, James Bottomley wrote:

> What people might pay attention to is evidence that there's a problem in
> 3.5-rc6 (without any OFED crap).  If you're not going to bother
> investigating, it has to be in an environment they can reproduce (so
> ordinary hardware, not infiniband) otherwise it gets ignored as an
> esoteric hardware issue.

The OFED stuff in the meantime is part of 3.5-rc6. Infiniband has been
supported for a long time and its a very important technology given the
problematic nature of ethernet at high network speeds.

OFED crap exists for those running RHEL5/6. The new enterprise distros are
based on the 3.2 kernel which has pretty good Infiniband support
out of the box.

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