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Message-ID: <1371812216-17093-5-git-send-email-roger.pau@citrix.com> Date: Fri, 21 Jun 2013 12:56:56 +0200 From: Roger Pau Monne <roger.pau@...rix.com> To: <xen-devel@...ts.xen.org>, <linux-kernel@...r.kernel.org> CC: Roger Pau Monne <roger.pau@...rix.com>, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> Subject: [PATCH 4/4] xen-blkfront: increase the default number of indirect segments When using certain storage devices (like RAID) having a bigger number of segments per request provides better performance. Signed-off-by: Roger Pau Monné <roger.pau@...rix.com> Reported-by: Steven Haigh <netwiz@....id.au> Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> --- drivers/block/xen-blkfront.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 2e1ee34..4e3ab34 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -94,9 +94,9 @@ static const struct block_device_operations xlvbd_block_fops; * by the backend driver. */ -static unsigned int xen_blkif_max_segments = 32; +static unsigned int xen_blkif_max_segments = 64; module_param_named(max, xen_blkif_max_segments, int, S_IRUGO); -MODULE_PARM_DESC(max, "Maximum amount of segments in indirect requests (default is 32)"); +MODULE_PARM_DESC(max, "Maximum amount of segments in indirect requests (default is 64)"); #define BLK_RING_SIZE __CONST_RING_SIZE(blkif, PAGE_SIZE) -- 1.7.7.5 (Apple Git-26) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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