Re: Raid5 Batching Question

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To: Logan Gunthorpe <logang@xxxxxxxxxxxx>, linux-raid@xxxxxxxxxxxxxxx
Subject: Re: Raid5 Batching Question
From: Guoqing Jiang <guoqing.jiang@xxxxxxxxx>
Date: Thu, 3 Mar 2022 09:40:20 +0800
Cc: Shaohua Li <shli@xxxxxxxxxx>, Shaohua Li <shli@xxxxxx>, Song Liu <song@xxxxxxxxxx>
In-reply-to: <34a8b64a-37d3-9966-1fe8-d57c432600d7@deltatee.com>
References: <11cfe3aa-b778-b3e5-a152-50abc6c054ac@deltatee.com> <34a8b64a-37d3-9966-1fe8-d57c432600d7@deltatee.com>



On 3/3/22 7:24 AM, Logan Gunthorpe wrote:

So I'm back to square one trying to find some performance improvements
on the write path.


Did you try with group_thread_cnt?

/sys/block/md0/md/group_thread_cnt

Thanks,
Guoqing

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