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From:   Diederik de Haas <didi.debian@cknow.org>
To:     Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc:     linux-kernel@vger.kernel.org, 970639@bugs.debian.org
Subject: ZSWAP still considered experimental?
Date:   Tue, 31 May 2022 10:41:05 +0200
Message-ID: <10087857.nUPlyArG6x@bagend>
Organization: Connecting Knowledge
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From: Diederik de Haas <didi.debian@cknow.org>
To: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org, 970639@bugs.debian.org
Subject: ZSWAP still considered experimental?
Date: Tue, 31 May 2022 10:41:05 +0200
Message-ID: <10087857.nUPlyArG6x@bagend>
Organization: Connecting Knowledge

In https://bugs.debian.org/970639 the request was made to enable ZSWAP.

Upon it was (rightly) noted that zswap.rst contained this:
> Zswap is a new feature as of v3.11 and interacts heavily with memory
> reclaim.  This interaction has not been fully explored on the large set
> of potential configurations and workloads that exist.  For this reason,
> zswap is a work in progress and should be considered experimental.

Furthermore the mm/Kconfig contains this on the ZSWAP option:
> Compressed cache for swap pages (EXPERIMENTAL)

But the contents of that zswap.rst hasn't changed since the initial commit  
61b0d76017a50c263c303fa263b295b04e0c68f6 from 2013-07-11.

Similarly, that line in Kconfig hasn't changed either since the initial commit
2b2811178e85553405b86e3fe78357b9b95889ce from 2013-07-11.

Should ZSWAP should still be considered experimental or not?

Regards,
  Diederik
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