From: "K. Y. Srinivasan" <kys@microsoft.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
devel@linuxdriverproject.org, ohering@suse.com,
jbottomley@parallels.com, hch@infradead.org,
linux-scsi@vger.kernel.org, apw@canonical.com,
vkuznets@redhat.com
Subject: [PATCH 1/3] scsi: storvsc: Increase the ring buffer size
Date: Fri, 27 Feb 2015 17:01:45 -0800 [thread overview]
Message-ID: <1425085307-27897-1-git-send-email-kys@microsoft.com> (raw)
In-Reply-To: <1425084227-27224-1-git-send-email-kys@microsoft.com>
Increase the default ring buffer size as this can significantly
improve performance especially on high latency storage back-ends.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
---
drivers/scsi/storvsc_drv.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index efc6e44..27fe850 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -308,7 +308,7 @@ enum storvsc_request_type {
* This is the end of Protocol specific defines.
*/
-static int storvsc_ringbuffer_size = (20 * PAGE_SIZE);
+static int storvsc_ringbuffer_size = (256 * PAGE_SIZE);
module_param(storvsc_ringbuffer_size, int, S_IRUGO);
MODULE_PARM_DESC(storvsc_ringbuffer_size, "Ring buffer size (bytes)");
--
1.7.4.1
next prev parent reply other threads:[~2015-02-28 1:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-28 0:43 [PATCH 0/3] scsi: storvsc: Some enhancements K. Y. Srinivasan
2015-02-28 1:01 ` K. Y. Srinivasan [this message]
2015-02-28 1:01 ` [PATCH 2/3] scsi: storvsc: Size the queue depth based on the ringbuffer size K. Y. Srinivasan
2015-02-28 1:01 ` [PATCH 3/3] scsi: storvsc: Always send on the selected outgoing channel K. Y. Srinivasan
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