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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6318C4332F for ; Thu, 24 Nov 2022 01:12:50 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 752936B0072; Wed, 23 Nov 2022 20:12:50 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6DAC86B0074; Wed, 23 Nov 2022 20:12:50 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 57D526B0075; Wed, 23 Nov 2022 20:12:50 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 416C16B0072 for ; Wed, 23 Nov 2022 20:12:50 -0500 (EST) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 0FBEE412AE for ; Thu, 24 Nov 2022 01:12:50 +0000 (UTC) X-FDA: 80166561300.17.FBE63B3 Received: from out2.migadu.com (out2.migadu.com [188.165.223.204]) by imf17.hostedemail.com (Postfix) with ESMTP id 92B1B40002 for ; Thu, 24 Nov 2022 01:12:49 +0000 (UTC) Date: Wed, 23 Nov 2022 17:12:44 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1669252368; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=NpmFzLv+gEbQLyUlhdmYGz0CPkD7MAW1WUDE2g6iLGg=; b=d5f8L4vmn+d5G6A4DKG3TcKRbyBR1WjmXW5h9SztC2KEWhqnFeg6+qOfdhCDeZKrky+EcY /g8AsIx41YBX2zoB2JnJv/dbCxCP3CUBjXYX0MoPzK8eSUTeFZ0svptDsrGXu4XDp7XxZs uJcxliu4reC1sCSTcVoAimbaeUkp1vI= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Roman Gushchin To: Vlastimil Babka Cc: Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Andrew Morton , Linus Torvalds , Matthew Wilcox , patches@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 04/12] mm, slub: retain no free slabs on partial list with CONFIG_SLUB_TINY Message-ID: References: <20221121171202.22080-1-vbabka@suse.cz> <20221121171202.22080-5-vbabka@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221121171202.22080-5-vbabka@suse.cz> X-Migadu-Flow: FLOW_OUT ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1669252369; a=rsa-sha256; cv=none; b=lzQ43Dryh43sX8mMZ7ddi2WdhkszHNrFcBvb5poG9NqsHh2Bau8CIWSB7AuG6RfgVSvrKQ XcPsSOn+lkc8whIFnTRJeJaW4nq8yA3/825FLgnEZCSNBAz744wzS/08ehaSnMcsazmpu8 0/EHp/s23pfP9hUSLLOTqEi/mNPqS4Y= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=d5f8L4vm; spf=pass (imf17.hostedemail.com: domain of roman.gushchin@linux.dev designates 188.165.223.204 as permitted sender) smtp.mailfrom=roman.gushchin@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1669252369; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=NpmFzLv+gEbQLyUlhdmYGz0CPkD7MAW1WUDE2g6iLGg=; b=t4EXpk4aVt5CerxJUhjzUv+sbJ2qtblM6lYUTnyDwcTzClCnzLctzofc0bNmtxPKm6awIr Q+f0uPuTyd63WkJxmdVB0rxQcNzTnW3vn3gGSbGyIrV6057VfYqgotbPe4qVyIINuGqSx5 CSMuVqd4pc2BPMjeWiWVjB9DLtrOXdg= X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 92B1B40002 Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=d5f8L4vm; spf=pass (imf17.hostedemail.com: domain of roman.gushchin@linux.dev designates 188.165.223.204 as permitted sender) smtp.mailfrom=roman.gushchin@linux.dev; dmarc=pass (policy=none) header.from=linux.dev X-Rspam-User: X-Stat-Signature: jxxi6qpbcjtofwt8yfag7qkiuazgifdr X-HE-Tag: 1669252369-638460 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Nov 21, 2022 at 06:11:54PM +0100, Vlastimil Babka wrote: > SLUB will leave a number of slabs on the partial list even if they are > empty, to avoid some slab freeing and reallocation. The goal of > CONFIG_SLUB_TINY is to minimize memory overhead, so set the limits to 0 > for immediate slab page freeing. > > Signed-off-by: Vlastimil Babka Acked-by: Roman Gushchin Thanks!