From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-f45.google.com (mail-qg0-f45.google.com [209.85.192.45]) by kanga.kvack.org (Postfix) with ESMTP id D460D6B0038 for ; Wed, 16 Sep 2015 18:13:17 -0400 (EDT) Received: by qgt47 with SMTP id 47so184370797qgt.2 for ; Wed, 16 Sep 2015 15:13:17 -0700 (PDT) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTPS id p79si23961196qki.119.2015.09.16.15.13.16 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 16 Sep 2015 15:13:17 -0700 (PDT) Date: Wed, 16 Sep 2015 15:13:14 -0700 From: Andrew Morton Subject: Re: [PATCH] slub: Avoid irqoff/on in bulk allocation Message-Id: <20150916151314.2377c39c5cc48dc71817858c@linux-foundation.org> In-Reply-To: References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Jesper Dangaard Brouer , linux-mm@kvack.org On Fri, 28 Aug 2015 14:44:20 -0500 (CDT) Christoph Lameter wrote: > Use the new function that can do allocation while > interrupts are disabled. Avoids irq on/off sequences. > It's going to increase worst-case irq-off times though. By how much? Is it a good tradeoff? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org