Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161721Ab3DEL7S (ORCPT ); Fri, 5 Apr 2013 07:59:18 -0400 Received: from mga02.intel.com ([134.134.136.20]:26836 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161619Ab3DEL63 (ORCPT ); Fri, 5 Apr 2013 07:58:29 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,414,1363158000"; d="scan'208";a="312816031" From: "Kirill A. Shutemov" To: Andrea Arcangeli , Andrew Morton Cc: Al Viro , Hugh Dickins , Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , Hillf Danton , Dave Hansen , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv3, RFC 16/34] thp, mm: add event counters for huge page alloc on write to a file Date: Fri, 5 Apr 2013 14:59:40 +0300 Message-Id: <1365163198-29726-17-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1499 Lines: 48 From: "Kirill A. Shutemov" Existing stats specify source of thp page: fault or collapse. We're going allocate a new huge page with write(2). It's nither fault nor collapse. Let's introduce new events for that. Signed-off-by: Kirill A. Shutemov --- include/linux/vm_event_item.h | 2 ++ mm/vmstat.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index d4b7a18..584c71c 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -71,6 +71,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, THP_FAULT_FALLBACK, THP_COLLAPSE_ALLOC, THP_COLLAPSE_ALLOC_FAILED, + THP_WRITE_ALLOC, + THP_WRITE_ALLOC_FAILED, THP_SPLIT, THP_ZERO_PAGE_ALLOC, THP_ZERO_PAGE_ALLOC_FAILED, diff --git a/mm/vmstat.c b/mm/vmstat.c index 292b1cf..dd8323a 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -818,6 +818,8 @@ const char * const vmstat_text[] = { "thp_fault_fallback", "thp_collapse_alloc", "thp_collapse_alloc_failed", + "thp_write_alloc", + "thp_write_alloc_failed", "thp_split", "thp_zero_page_alloc", "thp_zero_page_alloc_failed", -- 1.7.10.4 -- 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/