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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D744BC433E1 for ; Wed, 17 Jun 2020 05:26:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B34FF208C3 for ; Wed, 17 Jun 2020 05:26:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RhsRvMKj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726889AbgFQF0y (ORCPT ); Wed, 17 Jun 2020 01:26:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726858AbgFQF0u (ORCPT ); Wed, 17 Jun 2020 01:26:50 -0400 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B49AC061573 for ; Tue, 16 Jun 2020 22:26:50 -0700 (PDT) Received: by mail-pj1-x1043.google.com with SMTP id jz3so458349pjb.0 for ; Tue, 16 Jun 2020 22:26:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=LqAOrLNplaMBqdY/rTyoQrQcxqZrPjXktX70kNlPxVs=; b=RhsRvMKjie6x723miQooKnqgSSbdE9r7uTdUvENQTq+FVnX42ve0e5PcTXw657lo8G nLywbBbWJNegPWhAcn7UZEIuw1HzUBxVtune9XA37/3FN7Xgddmtd+tGv2RP9skb1mKL eysC6e2IZ7YmtaHyI8nQkWaPhLKLkJZYe7drnQWbqjsdyfRzTBofndFYu26NS1NO5nrx U2IiVS//aXASmtjpBJPxam85oTZaBv4G5Io/dlA0G8DrHc5a3LV+TnlY1Q53UyV4Sldd PhrhcjXHZF6CwIfb8XHtUiAQEWLRb3oZnZkcRzrocHUYK2l85O1bYbaoMY7Xxap27gaj HtIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=LqAOrLNplaMBqdY/rTyoQrQcxqZrPjXktX70kNlPxVs=; b=S1FHCS64PAltP5jEbcy7ToOFxFQURUV99ionElxlSiXUE05szbSfI5Nkr0ozc+KCyX Xjs0nP6FRpNHU8KujcWapiyEptzyBKu2XtrQuecU43B3NL6V17FrO4EFx7Fx5VyoA/AC 1hAej1w2wQHStxjpBQSz98fobmA9/cGTbQDOGbVtTtdFffgy28N85wK8n8mV7YKuPMC5 +YI0CbTrP/5xByJ54NTnmlLFWlVnZbfDxmI7wxMW2cwUoE4NAD4WMR3ft+j8f+fjoYNN ttovSs95hw0yDfpmjh/mV3Y1o1fFLzzHbeVrIZo5Dyq0Le+ymOrx0YkZ4WSmJrMubr1o s5gw== X-Gm-Message-State: AOAM532FhQGBACgA+iofRLVtStzESSgbyVr8umvJxrXHIpCBLJFGEbi9 I2JAlwwvX9QM7CS2XBkmCfY= X-Google-Smtp-Source: ABdhPJzKADQ5ElC8hqTHmAdFLRipScrGlc0p5LLDRIHX9sWKdEgBxG0YNVeIT/vP5g3vj9UrE8EIbw== X-Received: by 2002:a17:90b:390e:: with SMTP id ob14mr5695642pjb.221.1592371609477; Tue, 16 Jun 2020 22:26:49 -0700 (PDT) Received: from localhost.localdomain ([114.206.198.176]) by smtp.gmail.com with ESMTPSA id d184sm8830068pfd.85.2020.06.16.22.26.46 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Jun 2020 22:26:48 -0700 (PDT) From: js1304@gmail.com X-Google-Original-From: iamjoonsoo.kim@lge.com To: Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Johannes Weiner , Michal Hocko , Hugh Dickins , Minchan Kim , Vlastimil Babka , Mel Gorman , kernel-team@lge.com, Joonsoo Kim Subject: [PATCH v6 3/6] mm/workingset: extend the workingset detection for anon LRU Date: Wed, 17 Jun 2020 14:26:20 +0900 Message-Id: <1592371583-30672-4-git-send-email-iamjoonsoo.kim@lge.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1592371583-30672-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1592371583-30672-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joonsoo Kim In the following patch, workingset detection will be applied to anonymous LRU. To prepare it, this patch adds some code to distinguish/handle the both LRUs. v6: do not introduce a new nonresident_age for anon LRU since we need to use *unified* nonresident_age to implement workingset detection for anon LRU. Acked-by: Johannes Weiner Signed-off-by: Joonsoo Kim --- include/linux/mmzone.h | 16 +++++++++++----- mm/memcontrol.c | 16 +++++++++++----- mm/vmscan.c | 15 ++++++++++----- mm/vmstat.c | 9 ++++++--- mm/workingset.c | 8 +++++--- 5 files changed, 43 insertions(+), 21 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index f6f8849..8e9d0b9 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -179,9 +179,15 @@ enum node_stat_item { NR_ISOLATED_ANON, /* Temporary isolated pages from anon lru */ NR_ISOLATED_FILE, /* Temporary isolated pages from file lru */ WORKINGSET_NODES, - WORKINGSET_REFAULT, - WORKINGSET_ACTIVATE, - WORKINGSET_RESTORE, + WORKINGSET_REFAULT_BASE, + WORKINGSET_REFAULT_ANON = WORKINGSET_REFAULT_BASE, + WORKINGSET_REFAULT_FILE, + WORKINGSET_ACTIVATE_BASE, + WORKINGSET_ACTIVATE_ANON = WORKINGSET_ACTIVATE_BASE, + WORKINGSET_ACTIVATE_FILE, + WORKINGSET_RESTORE_BASE, + WORKINGSET_RESTORE_ANON = WORKINGSET_RESTORE_BASE, + WORKINGSET_RESTORE_FILE, WORKINGSET_NODERECLAIM, NR_ANON_MAPPED, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. @@ -259,8 +265,8 @@ struct lruvec { unsigned long file_cost; /* Non-resident age, driven by LRU movement */ atomic_long_t nonresident_age; - /* Refaults at the time of last reclaim cycle */ - unsigned long refaults; + /* Refaults at the time of last reclaim cycle, anon=0, file=1 */ + unsigned long refaults[2]; /* Various lruvec state flags (enum lruvec_flags) */ unsigned long flags; #ifdef CONFIG_MEMCG diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 0b38b6a..2127dd1 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1425,12 +1425,18 @@ static char *memory_stat_format(struct mem_cgroup *memcg) seq_buf_printf(&s, "%s %lu\n", vm_event_name(PGMAJFAULT), memcg_events(memcg, PGMAJFAULT)); - seq_buf_printf(&s, "workingset_refault %lu\n", - memcg_page_state(memcg, WORKINGSET_REFAULT)); - seq_buf_printf(&s, "workingset_activate %lu\n", - memcg_page_state(memcg, WORKINGSET_ACTIVATE)); + seq_buf_printf(&s, "workingset_refault_anon %lu\n", + memcg_page_state(memcg, WORKINGSET_REFAULT_ANON)); + seq_buf_printf(&s, "workingset_refault_file %lu\n", + memcg_page_state(memcg, WORKINGSET_REFAULT_FILE)); + seq_buf_printf(&s, "workingset_activate_anon %lu\n", + memcg_page_state(memcg, WORKINGSET_ACTIVATE_ANON)); + seq_buf_printf(&s, "workingset_activate_file %lu\n", + memcg_page_state(memcg, WORKINGSET_ACTIVATE_FILE)); seq_buf_printf(&s, "workingset_restore %lu\n", - memcg_page_state(memcg, WORKINGSET_RESTORE)); + memcg_page_state(memcg, WORKINGSET_RESTORE_ANON)); + seq_buf_printf(&s, "workingset_restore %lu\n", + memcg_page_state(memcg, WORKINGSET_RESTORE_FILE)); seq_buf_printf(&s, "workingset_nodereclaim %lu\n", memcg_page_state(memcg, WORKINGSET_NODERECLAIM)); diff --git a/mm/vmscan.c b/mm/vmscan.c index 4745e88..3caa35f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2695,7 +2695,10 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc) if (!sc->force_deactivate) { unsigned long refaults; - if (inactive_is_low(target_lruvec, LRU_INACTIVE_ANON)) + refaults = lruvec_page_state(target_lruvec, + WORKINGSET_ACTIVATE_ANON); + if (refaults != target_lruvec->refaults[0] || + inactive_is_low(target_lruvec, LRU_INACTIVE_ANON)) sc->may_deactivate |= DEACTIVATE_ANON; else sc->may_deactivate &= ~DEACTIVATE_ANON; @@ -2706,8 +2709,8 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc) * rid of any stale active pages quickly. */ refaults = lruvec_page_state(target_lruvec, - WORKINGSET_ACTIVATE); - if (refaults != target_lruvec->refaults || + WORKINGSET_ACTIVATE_FILE); + if (refaults != target_lruvec->refaults[1] || inactive_is_low(target_lruvec, LRU_INACTIVE_FILE)) sc->may_deactivate |= DEACTIVATE_FILE; else @@ -2984,8 +2987,10 @@ static void snapshot_refaults(struct mem_cgroup *target_memcg, pg_data_t *pgdat) unsigned long refaults; target_lruvec = mem_cgroup_lruvec(target_memcg, pgdat); - refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE); - target_lruvec->refaults = refaults; + refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_ANON); + target_lruvec->refaults[0] = refaults; + refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_FILE); + target_lruvec->refaults[1] = refaults; } /* diff --git a/mm/vmstat.c b/mm/vmstat.c index 80c9b62..8843e75 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1149,9 +1149,12 @@ const char * const vmstat_text[] = { "nr_isolated_anon", "nr_isolated_file", "workingset_nodes", - "workingset_refault", - "workingset_activate", - "workingset_restore", + "workingset_refault_anon", + "workingset_refault_file", + "workingset_activate_anon", + "workingset_activate_file", + "workingset_restore_anon", + "workingset_restore_file", "workingset_nodereclaim", "nr_anon_pages", "nr_mapped", diff --git a/mm/workingset.c b/mm/workingset.c index fc16d97c..8395e60 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -6,6 +6,7 @@ */ #include +#include #include #include #include @@ -280,6 +281,7 @@ void *workingset_eviction(struct page *page, struct mem_cgroup *target_memcg) */ void workingset_refault(struct page *page, void *shadow) { + bool file = page_is_file_lru(page); struct mem_cgroup *eviction_memcg; struct lruvec *eviction_lruvec; unsigned long refault_distance; @@ -346,7 +348,7 @@ void workingset_refault(struct page *page, void *shadow) memcg = page_memcg(page); lruvec = mem_cgroup_lruvec(memcg, pgdat); - inc_lruvec_state(lruvec, WORKINGSET_REFAULT); + inc_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file); /* * Compare the distance to the existing workingset size. We @@ -364,7 +366,7 @@ void workingset_refault(struct page *page, void *shadow) SetPageActive(page); workingset_age_nonresident(lruvec, hpage_nr_pages(page)); - inc_lruvec_state(lruvec, WORKINGSET_ACTIVATE); + inc_lruvec_state(lruvec, WORKINGSET_ACTIVATE_BASE + file); /* Page was active prior to eviction */ if (workingset) { @@ -373,7 +375,7 @@ void workingset_refault(struct page *page, void *shadow) spin_lock_irq(&page_pgdat(page)->lru_lock); lru_note_cost_page(page); spin_unlock_irq(&page_pgdat(page)->lru_lock); - inc_lruvec_state(lruvec, WORKINGSET_RESTORE); + inc_lruvec_state(lruvec, WORKINGSET_RESTORE_BASE + file); } out: rcu_read_unlock(); -- 2.7.4