Re: [PATCH v4 10/10] xen/blkback: make pool of persistent grants and free pages per-queue

[Bob Liu]

On 11/05/2015 10:43 AM, Konrad Rzeszutek Wilk wrote:
> On Mon, Nov 02, 2015 at 12:21:46PM +0800, Bob Liu wrote:
>> Make pool of persistent grants and free pages per-queue/ring instead of
>> per-device to get better scalability.
> 
> How much better scalability do we get?
> 

Which already showed in [00/10], I paste them here:

	domU(orig)	4 queues 	8 queues 	16 queues
iops:        690k 	1024k(+30%) 	    800k 	750k


After patch 9 and 10:
	domU(orig)	4 queues 	8 queues 	16 queues
iops:        690k 	1600k(+100%) 	   1450k 	1320k

Chart: https://www.dropbox.com/s/agrcy2pbzbsvmwv/iops.png?dl=0
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