From: Brian King <brking@linux.vnet.ibm.com>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James.Bottomley@suse.de, nab@linux-iscsi.org, linux-scsi@vger.kernel.org
Subject: Re: [PATCH 3/3] tcm ibmvscsis driver
Date: Mon, 21 Mar 2011 17:22:17 -0500 [thread overview]
Message-ID: <4D87CF99.7040008@linux.vnet.ibm.com> (raw)
In-Reply-To: <20110321100909E.fujita.tomonori@lab.ntt.co.jp>
Tomo,
Thanks for all the work you've done with this driver. It is much appreciated.
What sort of performance are you seeing with this? With filebacked devices, I
was seeing around 1 MB/sec doing a basic disktest run. I haven't compared this
to ibmvstgt, but I'm pretty sure we did a fair bit better there. Perhaps I've got
some setup issue?
I tried a ramdisk device and saw this on the server:
DMA_TO_DEVICE not supported for RAMDISK_DR with task_sg_chaining=1
All my I/O on the client timed out because of this.
-Brian
--
Brian King
Linux on Power Virtualization
IBM Linux Technology Center
next prev parent reply other threads:[~2011-03-21 22:22 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-10 12:21 [PATCH 0/3] ibmvscsis driver rewrite FUJITA Tomonori
2011-02-10 12:21 ` [PATCH 1/3] libsrp: add srp_data_length helper function FUJITA Tomonori
2011-02-10 12:21 ` [PATCH 2/3] libsrp: fix dma_unmap_sg FUJITA Tomonori
2011-02-10 12:21 ` [PATCH 3/3] tcm ibmvscsis driver FUJITA Tomonori
2011-02-10 19:03 ` Nicholas A. Bellinger
2011-02-14 1:36 ` FUJITA Tomonori
2011-02-14 3:26 ` FUJITA Tomonori
2011-02-14 9:01 ` Nicholas A. Bellinger
2011-02-14 9:29 ` FUJITA Tomonori
2011-02-14 9:27 ` Nicholas A. Bellinger
2011-02-14 9:46 ` FUJITA Tomonori
2011-02-14 9:51 ` Nicholas A. Bellinger
2011-02-10 19:15 ` Brian King
2011-02-10 19:38 ` Nicholas A. Bellinger
2011-02-11 21:13 ` Brian King
2011-02-12 20:27 ` James Bottomley
2011-03-07 4:41 ` FUJITA Tomonori
2011-03-07 6:17 ` Nicholas A. Bellinger
2011-03-07 6:24 ` FUJITA Tomonori
2011-03-07 6:55 ` Nicholas A. Bellinger
2011-03-07 14:40 ` James Bottomley
2011-03-18 16:57 ` James Bottomley
2011-03-18 20:58 ` Brian King
2011-03-18 22:09 ` Nicholas A. Bellinger
2011-03-19 14:32 ` James Bottomley
2011-03-21 1:09 ` FUJITA Tomonori
2011-03-21 12:56 ` Brian King
2011-03-21 21:01 ` Brian King
2011-03-21 21:01 ` Nicholas A. Bellinger
2011-03-21 21:24 ` Brian King
2011-03-21 22:29 ` Nicholas A. Bellinger
2011-03-21 23:20 ` FUJITA Tomonori
2011-03-21 23:50 ` Nicholas A. Bellinger
2011-03-21 23:55 ` FUJITA Tomonori
2011-03-22 0:26 ` Nicholas A. Bellinger
2011-03-22 0:32 ` FUJITA Tomonori
2011-03-22 2:28 ` Nicholas A. Bellinger
2011-03-22 3:26 ` FUJITA Tomonori
2011-03-21 21:05 ` James Bottomley
2011-03-21 22:37 ` Brian King
2011-03-21 22:22 ` Brian King [this message]
2011-03-21 22:31 ` Brian King
2011-03-21 22:48 ` Nicholas A. Bellinger
2011-03-22 12:53 ` Brian King
2011-03-22 22:06 ` Nicholas A. Bellinger
2011-03-22 22:49 ` FUJITA Tomonori
2011-03-23 1:35 ` Nicholas A. Bellinger
2011-03-23 5:12 ` FUJITA Tomonori
2011-03-23 8:26 ` Nicholas A. Bellinger
2011-03-23 8:48 ` FUJITA Tomonori
2011-03-23 10:00 ` Nicholas A. Bellinger
2011-03-23 12:04 ` FUJITA Tomonori
2011-03-23 21:17 ` Nicholas A. Bellinger
2011-03-24 1:54 ` FUJITA Tomonori
2011-03-24 7:29 ` Nicholas A. Bellinger
2011-03-23 15:19 ` Brian King
2011-03-23 20:34 ` Nicholas A. Bellinger
2011-03-25 14:33 ` Brian King
2011-03-25 20:13 ` Nicholas A. Bellinger
2011-03-21 22:34 ` Nicholas A. Bellinger
2011-03-21 23:06 ` FUJITA Tomonori
2011-03-21 23:13 ` Nicholas A. Bellinger
2011-03-21 23:22 ` FUJITA Tomonori
2011-03-22 0:03 ` Nicholas A. Bellinger
2011-03-21 23:30 ` FUJITA Tomonori
2011-02-14 1:42 ` FUJITA Tomonori
2011-02-14 1:42 ` FUJITA Tomonori
2011-02-14 7:16 ` Bart Van Assche
2011-02-14 9:11 ` FUJITA Tomonori
2011-02-14 9:18 ` Nicholas A. Bellinger
2011-02-14 9:19 ` Nicholas A. Bellinger
2011-02-14 9:31 ` FUJITA Tomonori
2011-02-14 9:29 ` Nicholas A. Bellinger
2011-02-14 11:50 ` Bart Van Assche
2011-02-15 3:42 ` FUJITA Tomonori
2011-02-15 19:20 ` Bart Van Assche
2011-02-15 23:21 ` FUJITA Tomonori
2011-02-10 18:34 ` [PATCH 0/3] ibmvscsis driver rewrite Nicholas A. Bellinger
2011-02-14 1:36 ` FUJITA Tomonori
2011-02-14 8:48 ` Nicholas A. Bellinger
[not found] ` <4D53DE96.2020502@suse.de>
[not found] ` <1297363312.18212.153.camel@haakon2.linux-iscsi.org>
2011-02-10 21:22 ` Bart Van Assche
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