From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 15AF3371D05 for ; Wed, 20 May 2026 03:41:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779248472; cv=none; b=OErc4Hh22FJ5Ez8uc+M51LJ81THicvm8/G/2XZwS2R1jTaf1AmnPwdyjdlR1OhvvBbcpOhvMKQlE+dbgm1qkJE8vqnFL4+gMxY7gwrN+Cng4jlDt2vCGqXkuXTkAr6LiNrqtTzVpTIfSDtVhdFqI29QLVKEaa8pb2Uo+uAuHIQA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779248472; c=relaxed/simple; bh=aQd+PCw8b7BF4wIqmSCt8liHy0QTsX/ju76AwR0LZ7U=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=EtS1Cse51AiXP0Y0uZsRvDwAxW5pfui7BInN84xsQHhCL3SubdRaiH4uPz9FUPnJqvZtCzShFqdh5pfCroyGyWKcP1IrCBNjxb/ip1pOVlC+Rk1k1jD/BDSqh082F8rAHkw2enDTmK0GTC7g0NQwd+kCSa1gb7ljRH+BXaPxc/A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=nXAi6eGp; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="nXAi6eGp" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 572F83552; Tue, 19 May 2026 20:40:50 -0700 (PDT) Received: from [10.164.148.41] (MacBook-Pro.blr.arm.com [10.164.148.41]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A84D63F632; Tue, 19 May 2026 20:40:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1779248455; bh=aQd+PCw8b7BF4wIqmSCt8liHy0QTsX/ju76AwR0LZ7U=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nXAi6eGpG49BwLeuZ5K6Iu0DOJ6cwT5ftm/3BWj22C9BrV1ap/IfSGeyezvS3cDRW TXBdq5BCMl+lEMT/38n3Hi0xibEuYnHJERTuEPRjQKP5zhktyLbxBXb/kNeM22vv88 WqrAGgPoR2snNJnGtPvPu+ceCfzNZtkC177zOuBA= Message-ID: Date: Wed, 20 May 2026 09:10:37 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory To: Andrew Morton , Wen Jiang Cc: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, will@kernel.org, urezki@gmail.com, baohua@kernel.org, Xueyuan.chen21@gmail.com, rppt@kernel.org, david@kernel.org, ryan.roberts@arm.com, anshuman.khandual@arm.com, ajd@linux.ibm.com, linux-kernel@vger.kernel.org, Wen Jiang References: <20260514094108.2016201-1-jiangwen6@xiaomi.com> <20260519131738.11a78ba88e1be28ba5cb26eb@linux-foundation.org> Content-Language: en-US From: Dev Jain In-Reply-To: <20260519131738.11a78ba88e1be28ba5cb26eb@linux-foundation.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 20/05/26 1:47 am, Andrew Morton wrote: > On Thu, 14 May 2026 17:41:01 +0800 Wen Jiang wrote: > >> This patchset accelerates ioremap, vmalloc, and vmap when the memory >> is physically fully or partially contiguous. >> >> ... >> >> On the RK3588 8-core ARM64 SoC, with tasks pinned to a little core and >> the performance CPUfreq policy enabled, benchmark results: >> >> * ioremap(1 MB): 1.35× faster (3407 ns -> 2526 ns) >> * vmalloc(1 MB) mapping time (excluding allocation) with >> VM_ALLOW_HUGE_VMAP: 1.42× faster (5.00 us -> 3.53us) >> * vmap(100MB) with order-8 pages: 8.3× faster (1235 us -> 149 us) > > Nice. > > AI review found a bunch of things to ask about: > https://sashiko.dev/#/patchset/20260514094108.2016201-1-jiangwen6@xiaomi.com > > It doesn't appear that you'll be getting any more review on this > series, so please check the above questions and resend? I have to review this but struggling to find time right now. So please don't wait for me : ) >