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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 E2252C5DF9D for ; Tue, 27 Oct 2020 06:33:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 944F82080A for ; Tue, 27 Oct 2020 06:33:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2506798AbgJ0GdS (ORCPT ); Tue, 27 Oct 2020 02:33:18 -0400 Received: from mga12.intel.com ([192.55.52.136]:9347 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2506773AbgJ0GdM (ORCPT ); Tue, 27 Oct 2020 02:33:12 -0400 IronPort-SDR: eG+QH3Rw4/3DMufuXHCSYTgNfvNsXaxYPqmfv0u0+n5FEd5dtnaXoNEdfbwVc9hITcxI0DoJ2c Zfe61KkMosrQ== X-IronPort-AV: E=McAfee;i="6000,8403,9786"; a="147317887" X-IronPort-AV: E=Sophos;i="5.77,422,1596524400"; d="scan'208";a="147317887" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2020 23:33:11 -0700 IronPort-SDR: c0pcvM5smIdBXL0iR+fyD6KRHnY1dCAnnMR719911lEylQPFFcxj/JP+EWrpU+/3OMPFWDldCE jSeNVGzsMwog== X-IronPort-AV: E=Sophos;i="5.77,422,1596524400"; d="scan'208";a="535666749" Received: from lzhengha-mobl.ccr.corp.intel.com (HELO yhuang-mobile.ccr.corp.intel.com) ([10.254.213.46]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2020 23:33:10 -0700 From: Huang Ying To: Peter Zijlstra Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Huang Ying Subject: [RFC -V4 6/6] autonuma, memory tiering: Add page promotion counter Date: Tue, 27 Oct 2020 14:32:17 +0800 Message-Id: <20201027063217.211096-7-ying.huang@intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201027063217.211096-1-ying.huang@intel.com> References: <20201027063217.211096-1-ying.huang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To distinguish the number of promotion from the original inter-socket NUMA balancing migration. The counter is per-node (target node). This is to identify imbalance among NUMA nodes. Signed-off-by: "Huang, Ying" --- include/linux/mmzone.h | 1 + mm/migrate.c | 10 +++++++++- mm/vmstat.c | 1 + 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index c10efdc92b17..b384489897b7 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -209,6 +209,7 @@ enum node_stat_item { #endif #ifdef CONFIG_NUMA_BALANCING PGPROMOTE_CANDIDATE, /* candidate pages to promote */ + PGPROMOTE_SUCCESS, /* promote successfully */ #endif NR_VM_NODE_STAT_ITEMS }; diff --git a/mm/migrate.c b/mm/migrate.c index d8d80b111a6a..0f4106b6c4fe 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2161,8 +2161,13 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, putback_lru_page(page); } isolated = 0; - } else + } else { count_vm_numa_event(NUMA_PAGE_MIGRATE); + if (sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING && + !node_is_toptier(page_to_nid(page)) && node_is_toptier(node)) + mod_node_page_state(NODE_DATA(node), PGPROMOTE_SUCCESS, + nr_succeeded); + } BUG_ON(!list_empty(&migratepages)); return isolated; @@ -2287,6 +2292,9 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR); + if (!node_is_toptier(page_to_nid(page)) && node_is_toptier(node)) + mod_node_page_state(NODE_DATA(node), PGPROMOTE_SUCCESS, + HPAGE_PMD_NR); return isolated; out_fail: diff --git a/mm/vmstat.c b/mm/vmstat.c index 2e60cc0232ef..ba5f6f987711 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1217,6 +1217,7 @@ const char * const vmstat_text[] = { #endif #ifdef CONFIG_NUMA_BALANCING "pgpromote_candidate", + "pgpromote_success", #endif /* enum writeback_stat_item counters */ -- 2.28.0