From patchwork Wed Mar 27 13:35:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Burakov, Anatoly" X-Patchwork-Id: 51813 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6647D5688; Wed, 27 Mar 2019 14:36:02 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 017674CC3; Wed, 27 Mar 2019 14:35:59 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Mar 2019 06:35:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,277,1549958400"; d="scan'208";a="331149551" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga006.fm.intel.com with ESMTP; 27 Mar 2019 06:35:58 -0700 Received: from sivswdev05.ir.intel.com (sivswdev05.ir.intel.com [10.243.17.64]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id x2RDZvHj024853; Wed, 27 Mar 2019 13:35:57 GMT Received: from sivswdev05.ir.intel.com (localhost [127.0.0.1]) by sivswdev05.ir.intel.com with ESMTP id x2RDZvc1010256; Wed, 27 Mar 2019 13:35:57 GMT Received: (from aburakov@localhost) by sivswdev05.ir.intel.com with LOCAL id x2RDZviE010251; Wed, 27 Mar 2019 13:35:57 GMT From: Anatoly Burakov To: dev@dpdk.org Cc: stable@dpdk.org Date: Wed, 27 Mar 2019 13:35:57 +0000 Message-Id: <1eaac2264febd5c36654a90b0cc13ba43a0b28ca.1553693720.git.anatoly.burakov@intel.com> X-Mailer: git-send-email 1.7.0.7 In-Reply-To: <72f990b04219f319b2922570a7ca7b9ce93e0aae.1550851129.git.anatoly.burakov@intel.com> References: <72f990b04219f319b2922570a7ca7b9ce93e0aae.1550851129.git.anatoly.burakov@intel.com> Subject: [dpdk-dev] [PATCH v2] mem: warn user when running without NUMA support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Running in non-legacy mode on a NUMA-enabled system without libnuma is unsupported, so explicitly print out a warning when trying to do so. Running in legacy mode without libnuma is still supported whether or not we are running with libnuma support enabled, so also fix init to allow that scenario. Cc: stable@dpdk.org Signed-off-by: Anatoly Burakov --- Notes: v2: - Removed unneeded eal_options include that broke the compile lib/librte_eal/linux/eal/eal_memalloc.c | 3 +++ lib/librte_eal/linux/eal/eal_memory.c | 13 +++++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/lib/librte_eal/linux/eal/eal_memalloc.c b/lib/librte_eal/linux/eal/eal_memalloc.c index b6fb183db..4e83a1a19 100644 --- a/lib/librte_eal/linux/eal/eal_memalloc.c +++ b/lib/librte_eal/linux/eal/eal_memalloc.c @@ -725,6 +725,9 @@ alloc_seg(struct rte_memseg *ms, void *addr, int socket_id, __func__, socket_id, cur_socket_id); goto mapped; } +#else + if (rte_socket_count() > 1) + RTE_LOG(DEBUG, EAL, "%s(): not checking hugepage NUMA node.\n"); #endif ms->addr = addr; diff --git a/lib/librte_eal/linux/eal/eal_memory.c b/lib/librte_eal/linux/eal/eal_memory.c index 1b96b576e..09758e947 100644 --- a/lib/librte_eal/linux/eal/eal_memory.c +++ b/lib/librte_eal/linux/eal/eal_memory.c @@ -2088,7 +2088,8 @@ memseg_primary_init_32(void) socket_id = rte_socket_id_by_idx(i); #ifndef RTE_EAL_NUMA_AWARE_HUGEPAGES - if (socket_id > 0) + /* we can still sort pages by socket in legacy mode */ + if (!internal_config.legacy_mem && socket_id > 0) break; #endif @@ -2269,7 +2270,8 @@ memseg_primary_init(void) int socket_id = rte_socket_id_by_idx(i); #ifndef RTE_EAL_NUMA_AWARE_HUGEPAGES - if (socket_id > 0) + /* we can still sort pages by socket in legacy mode */ + if (!internal_config.legacy_mem && socket_id > 0) break; #endif memtypes[cur_type].page_sz = hugepage_sz; @@ -2428,6 +2430,13 @@ rte_eal_memseg_init(void) } else { RTE_LOG(ERR, EAL, "Cannot get current resource limits\n"); } +#ifndef RTE_EAL_NUMA_AWARE_HUGEPAGES + if (!internal_config.legacy_mem && rte_socket_count() > 1) { + RTE_LOG(WARNING, EAL, "DPDK is running on a NUMA system, but is compiled without NUMA support.\n"); + RTE_LOG(WARNING, EAL, "This will have adverse consequences for performance and usability.\n"); + RTE_LOG(WARNING, EAL, "Please use --"OPT_LEGACY_MEM" option, or recompile with NUMA support.\n"); + } +#endif return rte_eal_process_type() == RTE_PROC_PRIMARY ? #ifndef RTE_ARCH_64