From: Brian King <brking@linux.vnet.ibm.com>
To: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
James.Bottomley@suse.de, linux-scsi@vger.kernel.org
Subject: Re: [PATCH 3/3] tcm ibmvscsis driver
Date: Wed, 23 Mar 2011 10:19:37 -0500 [thread overview]
Message-ID: <4D8A0F89.201@linux.vnet.ibm.com> (raw)
In-Reply-To: <1300831607.21880.365.camel@haakon2.linux-iscsi.org>
On 03/22/2011 05:06 PM, Nicholas A. Bellinger wrote:
>>>> I'm also seeing disktest complain on the client about commands taking longer than 120 seconds
>>>> on occasion, which may play into the performance issue I mentioned in my previous mail.
>>>>
>>>
>>> Mmmm, please verify with RAMDISK_MCP backends as well, as by default
>>> FILEIO has O_SYNC enabled.. This does seem strange for LTP disktest
>>> however..
With RAMDISK_MCP I don't see any of the problems seen with RAMDISK_DR. Additionally,
disktest is running much snappier. I'm seeing between 30 and 60 MB/sec on the read workload
and between 100 and 300 MB/sec on the writes.
I'm having some trouble with multiple LUNs, however. Perhaps this is more
configuration issues, but if I create a lun_1 directory and link to a second
device, the client just sees two devices which seems to be both mapped to
the device mapped at lun_0.
Thanks,
Brian
--
Brian King
Linux on Power Virtualization
IBM Linux Technology Center
next prev parent reply other threads:[~2011-03-23 15:19 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
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 [this message]
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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