From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0AD3FA034F; Tue, 30 Mar 2021 00:41:26 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CC2E0140E97; Tue, 30 Mar 2021 00:40:54 +0200 (CEST) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mails.dpdk.org (Postfix) with ESMTP id A4430140E3C for ; Tue, 30 Mar 2021 00:40:45 +0200 (CEST) Received: by linux.microsoft.com (Postfix, from userid 1059) id 4E3A220B5689; Mon, 29 Mar 2021 15:40:44 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 4E3A220B5689 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1617057644; bh=L2H3IvMBaWjLtKIcf8peeML1Im0QF2GdhVl1EjD68h4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OF6aMJvEPNAXLeW/431vjjMMplljzrOoSoE/mb46yRy/bxqo07T2cq8j+bOE95+Xl nHOlATpdxHXn99SUzAkDvJixpDw/Ofi6S0ANJ3A2/KxvNjWciPhf1uT+4T3ogq/FB5 UzIPJSaglDkcJs//JiQ23f+8ZPH4EifeVDWxt1TM= From: Narcisa Ana Maria Vasile To: dev@dpdk.org, thomas@monjalon.net, dmitry.kozliuk@gmail.com, khot@microsoft.com, navasile@microsoft.com, dmitrym@microsoft.com, roretzla@microsoft.com, talshn@nvidia.com, ocardona@microsoft.com Cc: bruce.richardson@intel.com, david.marchand@redhat.com, pallavi.kadam@intel.com Date: Mon, 29 Mar 2021 15:40:39 -0700 Message-Id: <1617057640-24301-10-git-send-email-navasile@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1617057640-24301-1-git-send-email-navasile@linux.microsoft.com> References: <1616802771-31578-10-git-send-email-navasile@linux.microsoft.com> <1617057640-24301-1-git-send-email-navasile@linux.microsoft.com> Subject: [dpdk-dev] [PATCH v5 09/10] eal: add EAL argument for setting thread priority X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" From: Narcisa Vasile Allow the user to choose the thread priority through an EAL command line argument. The user can select the thread priority to be either 'normal' or 'critical': --thread-prio normal --thread-prio realtime Signed-off-by: Narcisa Vasile --- lib/librte_eal/common/eal_common_options.c | 28 +++++++++++++++++++++- lib/librte_eal/common/eal_internal_cfg.h | 2 ++ lib/librte_eal/common/eal_options.h | 2 ++ 3 files changed, 31 insertions(+), 1 deletion(-) diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c index 622c7bc42..287a89a75 100644 --- a/lib/librte_eal/common/eal_common_options.c +++ b/lib/librte_eal/common/eal_common_options.c @@ -106,6 +106,7 @@ eal_long_options[] = { {OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM }, {OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM }, {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM}, + {OPT_THREAD_PRIORITY, 1, NULL, OPT_THREAD_PRIORITY_NUM}, /* legacy options that will be removed in future */ {OPT_PCI_BLACKLIST, 1, NULL, OPT_PCI_BLACKLIST_NUM }, @@ -1383,6 +1384,24 @@ eal_parse_simd_bitwidth(const char *arg) return 0; } +static int +eal_parse_thread_priority(const char *arg) +{ + struct internal_config *internal_conf = + eal_get_internal_configuration(); + enum rte_thread_priority priority; + + if (!strncmp("normal", arg, sizeof("normal"))) + priority = RTE_THREAD_PRIORITY_NORMAL; + else if (!strncmp("realtime", arg, sizeof("realtime"))) + priority = RTE_THREAD_PRIORITY_REALTIME_CRITICAL; + else + return -1; + + internal_conf->thread_priority = priority; + return 0; +} + static int eal_parse_base_virtaddr(const char *arg) { @@ -1796,7 +1815,13 @@ eal_parse_common_option(int opt, const char *optarg, return -1; } break; - + case OPT_THREAD_PRIORITY_NUM: + if (eal_parse_thread_priority(optarg) < 0) { + RTE_LOG(ERR, EAL, "invalid parameter for --" + OPT_THREAD_PRIORITY "\n"); + return -1; + } + break; /* don't know what to do, leave this to caller */ default: return 1; @@ -2059,6 +2084,7 @@ eal_common_usage(void) " (can be used multiple times)\n" " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n" " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n" + " --"OPT_THREAD_PRIORITY" Set threads priority (normal|realtime)\n" #ifndef RTE_EXEC_ENV_WINDOWS " --"OPT_SYSLOG" Set syslog facility\n" #endif diff --git a/lib/librte_eal/common/eal_internal_cfg.h b/lib/librte_eal/common/eal_internal_cfg.h index 51dbe86e2..7ab1d0008 100644 --- a/lib/librte_eal/common/eal_internal_cfg.h +++ b/lib/librte_eal/common/eal_internal_cfg.h @@ -93,6 +93,8 @@ struct internal_config { unsigned int no_telemetry; /**< true to disable Telemetry */ struct simd_bitwidth max_simd_bitwidth; /**< max simd bitwidth path to use */ + enum rte_thread_priority thread_priority; + /**< thread priority to configure */ }; void eal_reset_internal_config(struct internal_config *internal_cfg); diff --git a/lib/librte_eal/common/eal_options.h b/lib/librte_eal/common/eal_options.h index 7b348e707..9f5b209f6 100644 --- a/lib/librte_eal/common/eal_options.h +++ b/lib/librte_eal/common/eal_options.h @@ -93,6 +93,8 @@ enum { OPT_NO_TELEMETRY_NUM, #define OPT_FORCE_MAX_SIMD_BITWIDTH "force-max-simd-bitwidth" OPT_FORCE_MAX_SIMD_BITWIDTH_NUM, +#define OPT_THREAD_PRIORITY "thread-prio" + OPT_THREAD_PRIORITY_NUM, /* legacy option that will be removed in future */ #define OPT_PCI_BLACKLIST "pci-blacklist" -- 2.30.0.vfs.0.2