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Date: Thu, 05 Nov 2015 10:46:05 +0800 From: Bob Liu <bob.liu@...cle.com> To: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> CC: xen-devel@...ts.xen.org, linux-kernel@...r.kernel.org, roger.pau@...rix.com, felipe.franciosi@...rix.com, axboe@...com, avanzini.arianna@...il.com, rafal.mielniczuk@...rix.com, jonathan.davies@...rix.com, david.vrabel@...rix.com Subject: Re: [PATCH v4 10/10] xen/blkback: make pool of persistent grants and free pages per-queue 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 -- 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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