From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D51120ED for ; Mon, 25 Apr 2022 03:39:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650857992; x=1682393992; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5hPx0r3OWxS+lz/D+l0BiGQBbeJJHb52sFjAF/68dVQ=; b=S0OtYdwYqLqLFt1HNOFgkaPLkOPQ4EgvNaQTGYTkLOxTbucySfU82zJF Zc42wbt2joDH3xrI2gaQDF8ltYOlJZvLj4RjtnAtSTYn1e1QhKicIVw80 CFoutThKy9w2TRl1ldcJ6hxkRsDguIT6njoxLMpPfWpe0ElukIfOEabnO xmRXK+mCdmlhrg3tJjpvdi2qak4MOuJx9zWG7MCCp1cAgIuVO/GK+nyQx AnTfuI2j9Kvcsx+NrTglRq6tLuy+CovDa1dM1IqbSf+4ppJXGc4ZlhNGR /pDLsY+zRnHNlU3lGQlU+uN8CnIy2Wr6N1lxXdeWjRslsF64kmWfUuJBc Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10327"; a="325612419" X-IronPort-AV: E=Sophos;i="5.90,287,1643702400"; d="scan'208";a="325612419" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2022 20:39:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,287,1643702400"; d="scan'208";a="649514099" Received: from black.fi.intel.com ([10.237.72.28]) by FMSMGA003.fm.intel.com with ESMTP; 24 Apr 2022 20:39:43 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 1D2DC739; Mon, 25 Apr 2022 06:39:36 +0300 (EEST) From: "Kirill A. Shutemov" To: Borislav Petkov , Andy Lutomirski , Sean Christopherson , Andrew Morton , Joerg Roedel , Ard Biesheuvel Cc: Andi Kleen , Kuppuswamy Sathyanarayanan , David Rientjes , Vlastimil Babka , Tom Lendacky , Thomas Gleixner , Peter Zijlstra , Paolo Bonzini , Ingo Molnar , Varad Gautam , Dario Faggioli , Dave Hansen , Brijesh Singh , Mike Rapoport , David Hildenbrand , x86@kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv5 11/12] mm/vmstat: Add counter for memory accepting Date: Mon, 25 Apr 2022 06:39:33 +0300 Message-Id: <20220425033934.68551-12-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220425033934.68551-1-kirill.shutemov@linux.intel.com> References: <20220425033934.68551-1-kirill.shutemov@linux.intel.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The counter increased every time kernel accepts a memory region. The counter allows to see if memory acceptation is still ongoing and contributes to memory allocation latency. Signed-off-by: Kirill A. Shutemov --- arch/x86/mm/unaccepted_memory.c | 1 + include/linux/vm_event_item.h | 3 +++ mm/vmstat.c | 3 +++ 3 files changed, 7 insertions(+) diff --git a/arch/x86/mm/unaccepted_memory.c b/arch/x86/mm/unaccepted_memory.c index de0790af1824..65cd49b93c50 100644 --- a/arch/x86/mm/unaccepted_memory.c +++ b/arch/x86/mm/unaccepted_memory.c @@ -38,6 +38,7 @@ void accept_memory(phys_addr_t start, phys_addr_t end) } bitmap_clear(unaccepted_memory, range_start, len); + count_vm_events(ACCEPT_MEMORY, len * PMD_SIZE / PAGE_SIZE); } spin_unlock_irqrestore(&unaccepted_memory_lock, flags); } diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 16a0a4fd000b..6a468164a2f9 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -136,6 +136,9 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, #ifdef CONFIG_X86 DIRECT_MAP_LEVEL2_SPLIT, DIRECT_MAP_LEVEL3_SPLIT, +#endif +#ifdef CONFIG_UNACCEPTED_MEMORY + ACCEPT_MEMORY, #endif NR_VM_EVENT_ITEMS }; diff --git a/mm/vmstat.c b/mm/vmstat.c index b75b1a64b54c..4c9197f32406 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1397,6 +1397,9 @@ const char * const vmstat_text[] = { "direct_map_level2_splits", "direct_map_level3_splits", #endif +#ifdef CONFIG_UNACCEPTED_MEMORY + "accept_memory", +#endif #endif /* CONFIG_VM_EVENT_COUNTERS || CONFIG_MEMCG */ }; #endif /* CONFIG_PROC_FS || CONFIG_SYSFS || CONFIG_NUMA || CONFIG_MEMCG */ -- 2.35.1