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From: Logan Gunthorpe <logang@deltatee.com>
To: Guoqing Jiang <guoqing.jiang@linux.dev>, linux-raid@vger.kernel.org
Cc: Shaohua Li <shli@kernel.org>, Shaohua Li <shli@fb.com>,
	Song Liu <song@kernel.org>
Subject: Re: Raid5 Batching Question
Date: Thu, 3 Mar 2022 09:20:03 -0700	[thread overview]
Message-ID: <ff15d173-277a-499e-d019-07f4d4ed9f19@deltatee.com> (raw)
In-Reply-To: <806cdd27-8633-09dd-6942-12437c8b9818@linux.dev>



On 2022-03-02 6:40 p.m., Guoqing Jiang wrote:
> 
> 
> 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

Yes, I've tried group_thread_cnt and raised stripe_cache_size and a few
other parameters. Still get limited write performance.

Thanks,

Logan

  reply	other threads:[~2022-03-03 16:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-25  0:17 Raid5 Batching Question Logan Gunthorpe
2022-03-02 23:24 ` Logan Gunthorpe
2022-03-03  1:40   ` Guoqing Jiang
2022-03-03 16:20     ` Logan Gunthorpe [this message]
2022-03-04 14:21       ` o1bigtenor

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