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From: Sagi Grimberg <sagi@grimberg.me>
To: Krishnamraju Eraparaju <krishna2@chelsio.com>,
	Max Gurtovoy <maxg@mellanox.com>
Cc: linux-rdma@vger.kernel.org, Potnuri Bharat Teja <bharat@chelsio.com>
Subject: Re: reduce iSERT Max IO size
Date: Wed, 23 Sep 2020 01:57:47 -0700	[thread overview]
Message-ID: <07e53835-8389-3e07-6976-505edbd94f2a@grimberg.me> (raw)
In-Reply-To: <20200922104424.GA18887@chelsio.com>


> 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?

  reply	other threads:[~2020-09-23  8:57 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 10:44 reduce iSERT Max IO size Krishnamraju Eraparaju
2020-09-23  8:57 ` Sagi Grimberg [this message]
2020-10-02 17:10   ` Krishnamraju Eraparaju
2020-10-02 20:29     ` Sagi Grimberg
2020-10-03  3:36       ` Krishnamraju Eraparaju
2020-10-03 13:12         ` Max Gurtovoy
2020-10-03 21:45         ` Max Gurtovoy
2020-10-07  3:36           ` Krishnamraju Eraparaju
2020-10-07 12:56             ` Max Gurtovoy
2020-10-07 23:50               ` Sagi Grimberg
2020-10-08  5:30                 ` Leon Romanovsky
2020-10-08 16:20                   ` Sagi Grimberg
2020-10-09 13:07                     ` Leon Romanovsky
2020-10-08 13:12           ` Bernard Metzler
2020-10-08 18:59             ` Krishnamraju Eraparaju
2020-10-08 22:47               ` Max Gurtovoy
2020-10-09  3:06                 ` Krishnamraju Eraparaju

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