Re: [PATCH 1/2] hpsa: limit transfer length to 1MB

Johannes Thumshirn
2017-06-22T10:06:57Z

On Thu, Jun 22, 2017 at 05:58:44PM +0800, Yadan Fan wrote:
> The hpsa firmware will bypass the cache for any request larger
> than 1MB, so we should cap the request size to avoid any
> performance degradation in SLE12-SP2.
Upstream doesn't care too much about SLES.

> References: bsc#1025461

and our internal Bugzilla IDs

How about:
The hpsa firmware will bypass the cache for any requests larger than 1MB, so
we shoould cap the request size to avoid any performance regressions in
kernels later than 4.3

The same applies for Patch 2/2

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Johannes Thumshirn Storage
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