linux-kernel - Re: [PATCH] mm/zswap: store <PAGE_SIZE compression failed page as-is

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Message-Id: <20250807183233.2055-1-sj@kernel.org>
Date: Thu,  7 Aug 2025 11:32:33 -0700
From: SeongJae Park <sj@...nel.org>
To: SeongJae Park <sj@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Chengming Zhou <chengming.zhou@...ux.dev>,
	David Hildenbrand <david@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Nhat Pham <nphamcs@...il.com>,
	Yosry Ahmed <yosry.ahmed@...ux.dev>,
	kernel-team@...a.com,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Takero Funaki <flintglass@...il.com>
Subject: Re: [PATCH] mm/zswap: store <PAGE_SIZE compression failed page as-is

On Thu,  7 Aug 2025 11:16:16 -0700 SeongJae Park <sj@...nel.org> wrote:

> Tests
> -----
> 
> I tested this patch using a simple self-written microbenchmark that is
> available at GitHub[1].  You can reproduce the test I did by executing
> run_tests.sh of the repo on your system.  Note that the repo's
> documentation is not good as of this writing, so you may need to read
> and use the code.

The test script assumes the kernel has save_incompressible_pages zswap
parameter, which dropped on this version of this patch.  To run the test script
as is, you may need to build your test kernel with a patch that introduces the
parameter back, to use the test script as is.  An example of such patch is
available[1] at my GitHub tree.

[1] https://github.com/sjp38/linux/commit/3a8122e9cb947c13878f5fab1cd2d106be3f3d2f


Thanks,
SJ

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