From nobody Mon Sep 15 00:13:19 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 9942EC00A5A for ; Wed, 18 Jan 2023 01:03:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229662AbjARBDU (ORCPT ); Tue, 17 Jan 2023 20:03:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229944AbjARBCO (ORCPT ); Tue, 17 Jan 2023 20:02:14 -0500 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 106994900E for ; Tue, 17 Jan 2023 16:52:33 -0800 (PST) Received: by mail-pj1-x1031.google.com with SMTP id s13-20020a17090a6e4d00b0022900843652so695243pjm.1 for ; Tue, 17 Jan 2023 16:52:33 -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=EsTMdrrDLcqpHJRbM6PDDky4/t4qR5IEdsq7S2Y6nHw=; b=Fz8NyEIRMQqp+I4ZCxQepR1p8/ydkvg2hf1HWGJ8u/aCQ9zbwbo77E3dYl7YNtJc4i BUn0gxOOa7Ai0hZJHABejQtg+WfubPi/k0+hJgmX2tztw22xre3y8cf3ZlgKFEFs+OLF +bW3L/RBjQHekHwrqA7plGbudq0By7lrRWw8o= 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=EsTMdrrDLcqpHJRbM6PDDky4/t4qR5IEdsq7S2Y6nHw=; b=KAalYOr28s1hD19EoV5IbAPI+tiqAtKi/E/+NRjINvYDFJZ8y3bxu0Ixf6Cu9Pv47X 6KR6f1vZ7a9SXTu1XUjLYuK60BqIaYYd63odGh3IKcvPYycd3gaZG+6K0Ebg2NeMY2Or mUCPmu5phmux/6zu2juEKWttDkfNg8YLi9DEVB4HBS0uZmVSfAbW9Q0sNIYQODoE/qLW p/4VnecEMCKiPDoGudxZOFYnRlp5rEdMN6dABqBTg1V8qDm7OlZElqktCd0+HCPMgs+r vgmVK+FUXLH+PKXpHaq2I1MM+kG9SzmuZS04sjdbUPh3zYq5n81UEBz49KkdNK8dvJFj DAxQ== X-Gm-Message-State: AFqh2kr7koyD6PiS+n+FF3RBZtHDVseZk+s6MjxaxM/yw4TRKeZ0sHLK 8JVtRNtRulyVm2NVi5VlD20gwg== X-Google-Smtp-Source: AMrXdXsdNKdUiGRGfP8RIbqx3A82w0/9Ni8LqjvhCZZQjbuQ2HELZUicdwQGq1iTQV8GzoNc5bTcWQ== X-Received: by 2002:a17:902:8208:b0:193:f76:aed4 with SMTP id x8-20020a170902820800b001930f76aed4mr5345353pln.1.1674003152775; Tue, 17 Jan 2023 16:52:32 -0800 (PST) Received: from tigerii.tok.corp.google.com ([2401:fa00:8f:203:10f3:73a5:7e44:adbf]) by smtp.gmail.com with ESMTPSA id u10-20020a17090341ca00b00192f4fbdeb5sm8351461ple.102.2023.01.17.16.52.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Jan 2023 16:52:31 -0800 (PST) From: Sergey Senozhatsky To: Andrew Morton , Minchan Kim Cc: Mike Kravetz , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Sergey Senozhatsky Subject: [PATCHv3 4/4] zsmalloc: set default zspage chain size to 8 Date: Wed, 18 Jan 2023 09:52:10 +0900 Message-Id: <20230118005210.2814763-5-senozhatsky@chromium.org> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog In-Reply-To: <20230118005210.2814763-1-senozhatsky@chromium.org> References: <20230118005210.2814763-1-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 Acked-by: Minchan Kim --- mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/Kconfig b/mm/Kconfig index 1cfc0ec4e35e..ebfe5796adf8 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 4 16 depends on ZSMALLOC help --=20 2.39.0.314.g84b9a713c41-goog