From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f71.google.com (mail-pg0-f71.google.com [74.125.83.71]) by kanga.kvack.org (Postfix) with ESMTP id 286216B0038 for ; Thu, 16 Mar 2017 15:39:04 -0400 (EDT) Received: by mail-pg0-f71.google.com with SMTP id y17so109182944pgh.2 for ; Thu, 16 Mar 2017 12:39:04 -0700 (PDT) Received: from NAM01-SN1-obe.outbound.protection.outlook.com (mail-sn1nam01on0094.outbound.protection.outlook.com. [104.47.32.94]) by mx.google.com with ESMTPS id 31si6226663pli.135.2017.03.16.12.39.02 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 16 Mar 2017 12:39:03 -0700 (PDT) Date: Thu, 16 Mar 2017 14:38:44 -0500 From: Alex Thorlton Subject: Re: [PATCH v2 0/5] mm: support parallel free of memory Message-ID: <20170316193844.GA110825@stormcage.americas.sgi.com> References: <1489568404-7817-1-git-send-email-aaron.lu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1489568404-7817-1-git-send-email-aaron.lu@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Aaron Lu Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Dave Hansen , Tim Chen , Andrew Morton , Ying Huang , alex.thorlton@hpe.com On Wed, Mar 15, 2017 at 04:59:59PM +0800, Aaron Lu wrote: > v2 changes: Nothing major, only minor ones. > - rebased on top of v4.11-rc2-mmotm-2017-03-14-15-41; > - use list_add_tail instead of list_add to add worker to tlb's worker > list so that when doing flush, the first queued worker gets flushed > first(based on the comsumption that the first queued worker has a > better chance of finishing its job than those later queued workers); > - use bool instead of int for variable free_batch_page in function > tlb_flush_mmu_free_batches; > - style change according to ./scripts/checkpatch; > - reword some of the changelogs to make it more readable. > > v1 is here: > https://lkml.org/lkml/2017/2/24/245 I tested v1 on a Haswell system with 64 sockets/1024 cores/2048 threads and 8TB of RAM, with a 1TB malloc. The average free() time for a 1TB malloc on a vanilla kernel was 41.69s, the patched kernel averaged 21.56s for the same test. I am testing v2 now and will report back with results in the next day or so. - Alex -- 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