Re: [PATCH v4 0/9] mpt3sas and dmapool scalability

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On Mon, Nov 12, 2018 at 10:40:57AM -0500, Tony Battersby wrote:
> I posted v3 on August 7.  Nobody acked or merged the patches, and then
> I got too busy with other stuff to repost until now.

Thanks for resending.  They were in my pile of things to look at, but
that's an ever-growing pile.

> I believe these patches are ready for merging.

I agree.

> cat /sys/devices/pci0000:80/0000:80:07.0/0000:85:00.0/pools
> (manually cleaned up column alignment)
> poolinfo - 0.1
> reply_post_free_array pool  1      21     192     1
> reply_free pool             1      1      41728   1
> reply pool                  1      1      1335296 1
> sense pool                  1      1      970272  1
> chain pool                  373959 386048 128     12064
> reply_post_free pool        12     12     166528  12

That reply pool ... 1 object of 1.3MB?  That's a lot of strain to put
on the page allocator.  I wonder if anything can be done about that.

(I'm equally non-thrilled about the sense pool, the reply_post_free pool
and the reply_free pool, but they seem a little less stressful than the
reply pool)



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