From: Johannes Weiner <hannes@cmpxchg.org>
To: CGEL <cgel.zte@gmail.com>
Cc: akpm@linux-foundation.org, sfr@canb.auug.org.au,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Yang Yang <yang.yang29@zte.com.cn>
Subject: Re: [PATCH] psi: Treat ksm swapping in copy as memstall
Date: Wed, 19 Jan 2022 07:58:23 -0500 [thread overview]
Message-ID: <YegK7+oKFG8EPRp9@cmpxchg.org> (raw)
In-Reply-To: <61e7ac25.1c69fb81.e8938.bc67@mx.google.com>
On Wed, Jan 19, 2022 at 06:13:54AM +0000, CGEL wrote:
> I did a test, when we use zram, it takes longer time for ksm copying than
> swap_readpage(). Ksm copying average takes 147263ns, swap_readpage()
> average takes 55639ns. So I think this patch is reasonable.
Ok, that sounds reasonable to me as well. Please add the
PageWorkingset() check and resubmit the patch. Thanks!
next prev parent reply other threads:[~2022-01-19 12:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-16 15:21 cgel.zte
2022-01-17 12:14 ` Johannes Weiner
2022-01-19 6:13 ` CGEL
2022-01-19 12:58 ` Johannes Weiner [this message]
2022-01-21 9:51 ` CGEL
2022-01-28 1:29 ` Johannes Weiner
2022-01-28 2:31 ` CGEL
2022-02-08 3:22 ` Hugh Dickins
2022-02-08 13:09 ` CGEL
2022-02-09 5:55 ` Hugh Dickins
2022-02-10 6:52 ` CGEL
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