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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B97D2C433EF for ; Mon, 18 Jun 2018 09:19:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7678020864 for ; Mon, 18 Jun 2018 09:19:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7678020864 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966835AbeFRJS5 (ORCPT ); Mon, 18 Jun 2018 05:18:57 -0400 Received: from mx2.suse.de ([195.135.220.15]:38574 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933604AbeFRJSb (ORCPT ); Mon, 18 Jun 2018 05:18:31 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext-too.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id CEB39ACE9; Mon, 18 Jun 2018 09:18:27 +0000 (UTC) From: Vlastimil Babka To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Roman Gushchin , Michal Hocko , Johannes Weiner , linux-api@vger.kernel.org, Christoph Lameter , David Rientjes , Mel Gorman , Matthew Wilcox , Vlastimil Babka , Laura Abbott , Sumit Semwal , Vijayanand Jitta Subject: [PATCH v2 0/7] kmalloc-reclaimable caches Date: Mon, 18 Jun 2018 11:18:01 +0200 Message-Id: <20180618091808.4419-1-vbabka@suse.cz> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org v2 changes: - shorten cache names to kmalloc-rcl- - last patch shortens for all kmalloc caches to e.g. "1k", "4M" - include dma caches to the 2D kmalloc_caches[] array to avoid a branch - vmstat counter nr_indirectly_reclaimable_bytes renamed to nr_kernel_misc_reclaimable, doesn't include kmalloc-rcl-* - /proc/meminfo counter renamed to KReclaimable, includes kmalloc-rcl* and nr_kernel_misc_reclaimable Hi, as discussed at LSF/MM [1] here's a patchset that introduces kmalloc-reclaimable caches (more details in the second patch) and uses them for SLAB freelists and dcache external names. The latter allows us to repurpose the NR_INDIRECTLY_RECLAIMABLE_BYTES counter later in the series. This is how /proc/slabinfo looks like after booting in virtme: ... kmalloc-rcl-4M 0 0 4194304 1 1024 : tunables 1 1 0 : slabdata 0 0 0 ... kmalloc-rcl-96 7 32 128 32 1 : tunables 120 60 8 : slabdata 1 1 0 kmalloc-rcl-64 25 128 64 64 1 : tunables 120 60 8 : slabdata 2 2 0 kmalloc-rcl-32 0 0 32 124 1 : tunables 120 60 8 : slabdata 0 0 0 kmalloc-4M 0 0 4194304 1 1024 : tunables 1 1 0 : slabdata 0 0 0 kmalloc-2M 0 0 2097152 1 512 : tunables 1 1 0 : slabdata 0 0 0 kmalloc-1M 0 0 1048576 1 256 : tunables 1 1 0 : slabdata 0 0 0 ... /proc/vmstat with renamed nr_indirectly_reclaimable_bytes counter: ... nr_slab_reclaimable 2817 nr_slab_unreclaimable 1781 ... nr_kernel_misc_reclaimable 0 ... /proc/meminfo with new KReclaimable counter: ... Shmem: 564 kB KReclaimable: 11260 kB Slab: 18368 kB SReclaimable: 11260 kB SUnreclaim: 7108 kB KernelStack: 1248 kB ... Thanks, Vlastimil Vlastimil Babka (7): mm, slab: combine kmalloc_caches and kmalloc_dma_caches mm, slab/slub: introduce kmalloc-reclaimable caches mm, slab: allocate off-slab freelists as reclaimable when appropriate dcache: allocate external names from reclaimable kmalloc caches mm: rename and change semantics of nr_indirectly_reclaimable_bytes mm, proc: add KReclaimable to /proc/meminfo mm, slab: shorten kmalloc cache names for large sizes Documentation/filesystems/proc.txt | 4 + drivers/base/node.c | 19 ++-- drivers/staging/android/ion/ion_page_pool.c | 4 +- fs/dcache.c | 38 ++------ fs/proc/meminfo.c | 16 +-- include/linux/mmzone.h | 2 +- include/linux/slab.h | 49 +++++++--- mm/page_alloc.c | 19 ++-- mm/slab.c | 11 ++- mm/slab_common.c | 102 ++++++++++++-------- mm/slub.c | 13 +-- mm/util.c | 3 +- mm/vmstat.c | 6 +- 13 files changed, 159 insertions(+), 127 deletions(-) -- 2.17.1