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Date:   Fri, 2 Oct 2020 22:40:13 +0530
From:   Krishnamraju Eraparaju <krishna2@chelsio.com>
To:     Sagi Grimberg <sagi@grimberg.me>,
        Max Gurtovoy <mgurtovoy@nvidia.com>
Cc:     linux-rdma@vger.kernel.org,
        Potnuri Bharat Teja <bharat@chelsio.com>
Subject: Re: reduce iSERT Max IO size
Message-ID: <20201002171007.GA16636@chelsio.com>
References: <20200922104424.GA18887@chelsio.com>
 <07e53835-8389-3e07-6976-505edbd94f2a@grimberg.me>
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Hi Sagi & Max,

Any update on this?
Please change the max IO size to 1MiB(256 pages). 


Thanks,
Krishnam Raju.
On Wednesday, September 09/23/20, 2020 at 01:57:47 -0700, Sagi Grimberg wrote:
> 
> >Hi,
> >
> >Please reduce the Max IO size to 1MiB(256 pages), at iSER Target.
> >The PBL memory consumption has increased significantly after increasing
> >the Max IO size to 16MiB(with commit:317000b926b07c).
> >Due to the large MR pool, the max no.of iSER connections(On one variant
> >of Chelsio cards) came down to 9, before it was 250.
> >NVMe-RDMA target also uses 1MiB max IO size.
> 
> Max, remind me what was the point to support 16M? Did this resolve
> an issue?