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From: Oleksandr Natalenko <oleksandr@natalenko.name>
To: akpm@linux-foundation.org, SeongJae Park <sj@kernel.org>,
	Jonathan.Cameron@huawei.com
Cc: amit@kernel.org, benh@kernel.crashing.org, corbet@lwn.net,
	david@redhat.com, dwmw@amazon.com, elver@google.com,
	foersleo@amazon.de, gthelen@google.com, markubo@amazon.de,
	rientjes@google.com, shakeelb@google.com, shuah@kernel.org,
	linux-damon@amazon.com, linux-mm@kvack.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/15] Introduce DAMON-based Proactive Reclamation
Date: Sun, 21 Nov 2021 23:32:12 +0100	[thread overview]
Message-ID: <11868371.O9o76ZdvQC@natalenko.name> (raw)
In-Reply-To: <20211019150731.16699-1-sj@kernel.org>

Hello.

On úterý 19. října 2021 17:07:16 CET SeongJae Park wrote:
> In short, DAMON_RECLAIM with 50ms/s time quota and regions prioritization on
> v5.15-rc5 Linux kernel with ZRAM swap device achieves 38.58% memory saving
> with only 1.94% runtime overhead.  For this, DAMON_RECLAIM consumes only
> 4.97% of single CPU time.

While it really consumes little CPU time, is it fine for `kdamond.0` to be in a 
D (uninterruptible sleep) state all the time while active, pushing loadavg 
over 1.0?

Thanks.

-- 
Oleksandr Natalenko (post-factum)



  parent reply	other threads:[~2021-11-21 22:32 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-19 15:07 SeongJae Park
2021-10-19 15:07 ` [PATCH 01/15] mm/damon/paddr: Support the pageout scheme SeongJae Park
2021-10-19 15:07 ` [PATCH 02/15] mm/damon/schemes: Implement size quota for schemes application speed control SeongJae Park
2021-10-19 15:07 ` [PATCH 03/15] mm/damon/schemes: Skip already charged targets and regions SeongJae Park
2021-10-19 15:07 ` [PATCH 04/15] mm/damon/schemes: Implement time quota SeongJae Park
2021-10-19 15:07 ` [PATCH 05/15] mm/damon/dbgfs: Support quotas of schemes SeongJae Park
2021-10-19 15:07 ` [PATCH 06/15] mm/damon/selftests: Support schemes quotas SeongJae Park
2021-10-19 15:07 ` [PATCH 07/15] mm/damon/schemes: Prioritize regions within the quotas SeongJae Park
2021-10-19 15:07 ` [PATCH 08/15] mm/damon/vaddr,paddr: Support pageout prioritization SeongJae Park
2021-10-19 15:07 ` [PATCH 09/15] mm/damon/dbgfs: Support prioritization weights SeongJae Park
2021-10-19 15:07 ` [PATCH 10/15] tools/selftests/damon: Update for regions prioritization of schemes SeongJae Park
2021-10-19 15:07 ` [PATCH 11/15] mm/damon/schemes: Activate schemes based on a watermarks mechanism SeongJae Park
2021-10-19 15:07 ` [PATCH 12/15] mm/damon/dbgfs: Support watermarks SeongJae Park
2021-10-19 15:07 ` [PATCH 13/15] selftests/damon: " SeongJae Park
2021-10-19 15:07 ` [PATCH 14/15] mm/damon: Introduce DAMON-based Reclamation (DAMON_RECLAIM) SeongJae Park
2021-10-19 15:07 ` [PATCH 15/15] Documentation/admin-guide/mm/damon: Add a document for DAMON_RECLAIM SeongJae Park
2021-11-21 22:32 ` Oleksandr Natalenko [this message]
2021-11-23  8:36   ` [PATCH 00/15] Introduce DAMON-based Proactive Reclamation SeongJae Park

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