From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D57A5C38147 for ; Wed, 18 Jan 2023 01:10:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229634AbjARBK0 (ORCPT ); Tue, 17 Jan 2023 20:10:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59220 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230044AbjARBJu (ORCPT ); Tue, 17 Jan 2023 20:09:50 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F5A827482 for ; Tue, 17 Jan 2023 17:04:23 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 77D48CE1AC7 for ; Wed, 18 Jan 2023 01:04:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F146C433EF; Wed, 18 Jan 2023 01:04:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1674003859; bh=c2GjI1ylma6zpdNekApci2rqIdVXAdpWQ3MBDFW4f10=; h=Date:To:From:Subject:From; b=GfUnFNDwFmZ1Ov9690Ew2LsO270PzE7SGQqeiLTcdGN+ji7553w6rIv6vEvwVpTNA +nFNFsWZKnQ4iGIUwr6sIDVkMtfGdcytjlhsxb+Yke34QjwPplka3l5GQ6nERUmwkp uB6KmNj0SuRN2+5nMYLrzq+VgLXtmEtXCz5Bvo4Q= Date: Tue, 17 Jan 2023 17:04:18 -0800 To: mm-commits@vger.kernel.org, minchan@kernel.org, mike.kravetz@oracle.com, senozhatsky@chromium.org, akpm@linux-foundation.org From: Andrew Morton Subject: + zsmalloc-set-default-zspage-chain-size-to-8.patch added to mm-unstable branch Message-Id: <20230118010419.7F146C433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: zsmalloc: set default zspage chain size to 8 has been added to the -mm mm-unstable branch. Its filename is zsmalloc-set-default-zspage-chain-size-to-8.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zsmalloc-set-default-zspage-chain-size-to-8.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Sergey Senozhatsky Subject: zsmalloc: set default zspage chain size to 8 Date: Wed, 18 Jan 2023 09:52:10 +0900 This changes key characteristics (pages per-zspage and objects per-zspage) of a number of size classes which in results in different pool configuration. With zspage chain size of 8 we have more size clases clusters (123) and higher huge size class watermark (3632 bytes). Please read zsmalloc documentation for more details. Link: https://lkml.kernel.org/r/20230118005210.2814763-5-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky Acked-by: Minchan Kim Cc: Mike Kravetz Signed-off-by: Andrew Morton --- --- a/mm/Kconfig~zsmalloc-set-default-zspage-chain-size-to-8 +++ a/mm/Kconfig @@ -193,7 +193,7 @@ config ZSMALLOC_STAT config ZSMALLOC_CHAIN_SIZE int "Maximum number of physical pages per-zspage" - default 4 + default 8 range 4 16 depends on ZSMALLOC help _ Patches currently in -mm which might be from senozhatsky@chromium.org are zram-correctly-handle-all-next_arg-cases.patch zsmalloc-rework-zspage-chain-size-selection.patch zsmalloc-skip-chain-size-calculation-for-pow_of_2-classes.patch zsmalloc-make-zspage-chain-size-configurable.patch zsmalloc-set-default-zspage-chain-size-to-8.patch