linux-kernel - Re: [PATCH 0/4] numa, iommu/smmu: IOMMU/SMMU driver optimization for NUMA systems

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Message-ID: <20171018132759.GA21820@arm.com>
Date:   Wed, 18 Oct 2017 14:28:00 +0100
From:   Will Deacon <will.deacon@....com>
To:     Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, linux-mm@...ck.org,
        robin.murphy@....com, lorenzo.pieralisi@....com,
        hanjun.guo@...aro.org, joro@...tes.org, vbabka@...e.cz,
        akpm@...ux-foundation.org, mhocko@...e.com,
        Tomasz.Nowicki@...ium.com, Robert.Richter@...ium.com,
        jnair@...iumnetworks.com, gklkml16@...il.com
Subject: Re: [PATCH 0/4] numa, iommu/smmu: IOMMU/SMMU driver optimization for
 NUMA systems

Hi Ganapat,

On Thu, Sep 21, 2017 at 02:29:18PM +0530, Ganapatrao Kulkarni wrote:
> Adding numa aware memory allocations used for iommu dma allocation and
> memory allocated for SMMU stream tables, page walk tables and command queues.
> 
> With this patch, iperf testing on ThunderX2, with 40G NIC card on
> NODE 1 PCI shown same performance(around 30% improvement) as NODE 0.

Are you planning to repost this series? The idea looks good, but it needs
some rework before it can be merged.

Thanks,

Will