Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758006Ab2HHWx6 (ORCPT ); Wed, 8 Aug 2012 18:53:58 -0400 Received: from mx1.redhat.com ([209.132.183.28]:16724 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753876Ab2HHWx4 (ORCPT ); Wed, 8 Aug 2012 18:53:56 -0400 From: Rafael Aquini To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Rusty Russell , "Michael S. Tsirkin" , Rik van Riel , Mel Gorman , Andi Kleen , Andrew Morton , Konrad Rzeszutek Wilk , Minchan Kim , Rafael Aquini Subject: [PATCH v6 3/3] mm: add vm event counters for balloon pages compaction Date: Wed, 8 Aug 2012 19:53:21 -0300 Message-Id: <768e09520a249fd78f706cd8ae53d511f9db0aaa.1344463786.git.aquini@redhat.com> In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3101 Lines: 97 This patch is only for testing report purposes and shall be dropped in case of the rest of this patchset getting accepted for merging. Signed-off-by: Rafael Aquini --- drivers/virtio/virtio_balloon.c | 1 + include/linux/vm_event_item.h | 2 ++ mm/compaction.c | 1 + mm/migrate.c | 6 ++++-- mm/vmstat.c | 4 ++++ 5 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 7c937a0..b8f7ea5 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -414,6 +414,7 @@ int virtballoon_migratepage(struct address_space *mapping, mutex_unlock(&balloon_lock); + count_vm_event(COMPACTBALLOONMIGRATED); return 0; } diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 57f7b10..a632a5d 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -41,6 +41,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, #ifdef CONFIG_COMPACTION COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED, COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS, + COMPACTBALLOONMIGRATED, COMPACTBALLOONFAILED, + COMPACTBALLOONISOLATED, COMPACTBALLOONFREED, #endif #ifdef CONFIG_HUGETLB_PAGE HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL, diff --git a/mm/compaction.c b/mm/compaction.c index 7372592..5d6a344 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -77,6 +77,7 @@ bool isolate_balloon_page(struct page *page) (page_count(page) == 2)) { __isolate_balloon_page(page); unlock_page(page); + count_vm_event(COMPACTBALLOONISOLATED); return true; } unlock_page(page); diff --git a/mm/migrate.c b/mm/migrate.c index 871a304..4115875 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -79,9 +79,10 @@ void putback_lru_pages(struct list_head *l) list_del(&page->lru); dec_zone_page_state(page, NR_ISOLATED_ANON + page_is_file_cache(page)); - if (unlikely(movable_balloon_page(page))) + if (unlikely(movable_balloon_page(page))) { + count_vm_event(COMPACTBALLOONFAILED); WARN_ON(!putback_balloon_page(page)); - else + } else putback_lru_page(page); } } @@ -872,6 +873,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, page_is_file_cache(page)); put_page(page); __free_page(page); + count_vm_event(COMPACTBALLOONFREED); return rc; } out: diff --git a/mm/vmstat.c b/mm/vmstat.c index df7a674..8d80f60 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -768,6 +768,10 @@ const char * const vmstat_text[] = { "compact_stall", "compact_fail", "compact_success", + "compact_balloon_migrated", + "compact_balloon_failed", + "compact_balloon_isolated", + "compact_balloon_freed", #endif #ifdef CONFIG_HUGETLB_PAGE -- 1.7.11.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/