From nobody Tue Sep 16 09:01:46 2025 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 4C3EBC3DA7D for ; Thu, 5 Jan 2023 05:36:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230255AbjAEFgC (ORCPT ); Thu, 5 Jan 2023 00:36:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230073AbjAEFfo (ORCPT ); Thu, 5 Jan 2023 00:35:44 -0500 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A278637240 for ; Wed, 4 Jan 2023 21:35:43 -0800 (PST) Received: by mail-pf1-x432.google.com with SMTP id x26so18331564pfq.10 for ; Wed, 04 Jan 2023 21:35:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=u3RcO+ukEEU2tRMGKkuSA42+1jjoCDn3FvnF70ujYWI=; b=fU3ZxfwS35G2sd1ofLS0XH6rgua1/Y1Q81HU7Kz9UP7+pJN4hKAikLBBHWCqGEhwNJ 6sKba61QIGyVO9mZeRIBc6WKZ39X1PvO+i5DuWQQI9UZWlRkhNIcN9zzZhUCawyqxwCS Yasvmb2ntqX0rHqa/Jzqhid2eBOHoCUxCpZgY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=u3RcO+ukEEU2tRMGKkuSA42+1jjoCDn3FvnF70ujYWI=; b=CTkQHKPxgqShuxOKklAgKpU84mKpVEeU3xMG6njgR1X9gC+nabWmETzcRtIpC3cc2g lvfZunghVtICY75WXaCD0krsrmvBTYu1YdR+S9tkJe8fCtgZyF8xL+GX2aY5uRrDiLW2 kzj2Xyr3LbHRFDi2Z8am92/E0OoZWe88n+zh7I60o+r+I2cO0MnDyN4duC1e52fV5c/8 Cp4JJuXEcyP/XuNQltsTBaLGO3mKMPdVdFrENBcjN4yERochmr21jl/3GlMVZ+jJjHHs NNqHVebQX2Fa8Dou/3EjVOeDLKpPBus5T/CWwbz/RC0WW4EEqX3Qi0UgLg1SJ9P34pER Lv6w== X-Gm-Message-State: AFqh2ko7hZNYFJ0tV55YNYXG8AjHIdaHXThu0hZ6zmKJK5LM5C4j9TV5 uMXGfUXBB1nUld0AfBc4uHRkUR36389ekfPM X-Google-Smtp-Source: AMrXdXsLJCXHNR4z3LOOHq/EWKiZHaAIInb3wQ5+cuJXqsQVsZ3H0KlsmcXXMWSqiEVtXBS5uFTQMA== X-Received: by 2002:a05:6a00:450a:b0:56e:664f:a5f5 with SMTP id cw10-20020a056a00450a00b0056e664fa5f5mr61013213pfb.8.1672896943236; Wed, 04 Jan 2023 21:35:43 -0800 (PST) Received: from tigerii.tok.corp.google.com ([2401:fa00:8f:203:da84:4bce:bb29:7dea]) by smtp.gmail.com with ESMTPSA id v27-20020aa799db000000b00577c5915138sm2036855pfi.128.2023.01.04.21.35.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Jan 2023 21:35:42 -0800 (PST) From: Sergey Senozhatsky To: Minchan Kim , Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Sergey Senozhatsky Subject: [PATCH 4/4] zsmalloc: set default zspage chain size to 8 Date: Thu, 5 Jan 2023 14:35:10 +0900 Message-Id: <20230105053510.1819862-5-senozhatsky@chromium.org> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog In-Reply-To: <20230105053510.1819862-1-senozhatsky@chromium.org> References: <20230105053510.1819862-1-senozhatsky@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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. Signed-off-by: Sergey Senozhatsky --- mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/Kconfig b/mm/Kconfig index 995a7c4083c2..9ab5c1996a04 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -193,7 +193,7 @@ config ZSMALLOC_STAT =20 config ZSMALLOC_CHAIN_SIZE int "Maximum number of physical pages per-zspage" - default 4 + default 8 range 1 16 depends on ZSMALLOC help --=20 2.39.0.314.g84b9a713c41-goog