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From: Christoph Lameter <cl@linux.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>,
	Jens Axboe <axboe@kernel.dk>,
	Anthony Liguori <aliguori@us.ibm.com>,
	kvm-devel <kvm@vger.kernel.org>,
	linux-scsi <linux-scsi@vger.kernel.org>,
	lf-virt <virtualization@lists.linux-foundation.org>,
	Anthony Liguori <aliguori@linux.vnet.ibm.com>,
	target-devel <target-devel@vger.kernel.org>,
	ksummit-2012-discuss
	<ksummit-2012-discuss@lists.linuxfoundation.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Zhi Yong Wu <wuzhy@cn.ibm.com>, Christoph Hellwig <hch@lst.de>,
	Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Subject: Re: [Ksummit-2012-discuss] SCSI Performance regression [was Re: [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6]
Date: Fri, 6 Jul 2012 15:30:57 -0500 (CDT)	[thread overview]
Message-ID: <alpine.DEB.2.00.1207061528520.2656@router.home> (raw)
In-Reply-To: <1341553397.3023.16.camel@dabdike.hilton.com>

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.

  parent reply	other threads:[~2012-07-06 20:30 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-04  4:24 [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6 Nicholas A. Bellinger
2012-07-04  4:24 ` [PATCH 1/6] vhost: Separate vhost-net features from vhost features Nicholas A. Bellinger
2012-07-04  4:41   ` Asias He
2012-07-04  4:24 ` [PATCH 2/6] vhost: make vhost work queue visible Nicholas A. Bellinger
2012-07-04  4:24 ` Nicholas A. Bellinger
2012-07-04  4:24 ` [PATCH 3/6] vhost: Add vhost_scsi specific defines Nicholas A. Bellinger
2012-07-04  4:24 ` Nicholas A. Bellinger
2012-07-04  4:24 ` [PATCH 4/6] tcm_vhost: Initial merge for vhost level target fabric driver Nicholas A. Bellinger
2012-07-05 17:47   ` Bart Van Assche
2012-07-05 17:47   ` Bart Van Assche
2012-07-05 17:59     ` Bart Van Assche
2012-07-05 17:59     ` Bart Van Assche
2012-07-04  4:24 ` Nicholas A. Bellinger
2012-07-04  4:24 ` [PATCH 5/6] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning Nicholas A. Bellinger
2012-07-04  4:24 ` Nicholas A. Bellinger
2012-07-04 14:50   ` Paolo Bonzini
2012-07-04  4:24 ` [PATCH 6/6] virtio-scsi: Set shost->max_id=1 for tcm_vhost WWPNs Nicholas A. Bellinger
2012-07-04 14:50   ` Paolo Bonzini
2012-07-05  2:05     ` Nicholas A. Bellinger
2012-07-05  6:42       ` Paolo Bonzini
2012-07-04  4:24 ` Nicholas A. Bellinger
2012-07-04 14:02 ` [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6 Michael S. Tsirkin
2012-07-04 14:52   ` Paolo Bonzini
2012-07-04 15:05     ` Michael S. Tsirkin
2012-07-04 22:12       ` Anthony Liguori
2012-07-05  1:52         ` Nicholas A. Bellinger
2012-07-05 10:22           ` Paolo Bonzini
2012-07-05 13:53             ` Michael S. Tsirkin
2012-07-05 14:06               ` Anthony Liguori
2012-07-05 14:40                 ` Michael S. Tsirkin
2012-07-05 14:47                   ` Paolo Bonzini
2012-07-05 17:26                     ` Michael S. Tsirkin
2012-07-06  3:01                 ` Nicholas A. Bellinger
2012-07-06  5:43                   ` SCSI Performance regression [was Re: [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6] James Bottomley
2012-07-06  9:13                     ` Nicholas A. Bellinger
2012-07-06 13:49                       ` James Bottomley
2012-07-06 18:21                         ` Nicholas A. Bellinger
2012-07-06 18:21                         ` Nicholas A. Bellinger
2012-07-06 20:30                     ` [Ksummit-2012-discuss] " Christoph Lameter
2012-07-06 20:30                     ` Christoph Lameter [this message]
2012-07-06 22:06                       ` Nicholas A. Bellinger
2012-07-06 22:06                       ` Nicholas A. Bellinger
2012-07-06  3:01                 ` [PATCH 0/6] tcm_vhost/virtio-scsi WIP code for-3.6 Nicholas A. Bellinger
2012-07-05 14:06               ` Anthony Liguori
2012-07-05 14:32               ` Paolo Bonzini
2012-07-05 21:00                 ` Michael S. Tsirkin
2012-07-06  3:38               ` Nicholas A. Bellinger
2012-07-06  5:39                 ` Paolo Bonzini
2012-07-05 17:53           ` Bart Van Assche
2012-07-05 17:53           ` Bart Van Assche
2012-07-05 19:57             ` Bart Van Assche
2012-07-10  0:29           ` Nicholas A. Bellinger
2012-07-10  0:29           ` Nicholas A. Bellinger
2012-07-05  2:01       ` Nicholas A. Bellinger
2012-07-05  2:01       ` Nicholas A. Bellinger
2012-07-05  9:31         ` Michael S. Tsirkin
2012-07-06  3:13           ` Nicholas A. Bellinger

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