linux-kernel - Re: [PATCH 2/2] powerpc/pseries: Dynamically increase RMA size

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Date:   Wed, 1 Feb 2017 10:11:03 -0800
From:   Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:     Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com>
Cc:     linuxppc-dev@...ts.ozlabs.org,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Clarke <pc@...ibm.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] powerpc/pseries: Dynamically increase RMA size

Thiago Jung Bauermann [bauerman@...ux.vnet.ibm.com] wrote:
> Instead of this method of trying a small RMA size and rebooting to try a 
> bigger size, could the "min RMA percentage of total RAM" field of the 
> ibm_architecture_vec be used?

We tried that and concluded that even 1% could end up reserving a lot of
memory on systems with lot of memory.

Sukadev