From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f180.google.com (mail-qt0-f180.google.com [209.85.216.180]) by dpdk.org (Postfix) with ESMTP id 2AADE2BE5 for ; Tue, 20 Feb 2018 19:48:44 +0100 (CET) Received: by mail-qt0-f180.google.com with SMTP id d14so17695220qtg.1 for ; Tue, 20 Feb 2018 10:48:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=dOQqQJ+lXM5S0ao1mBTzlX5iRBmqSS7LWFeRfOrOSIw=; b=SGBUVOiQHDYB9ovLchGi+CUEFhEnwVKMs2tTQ0clFvkdSLYiJy2MA1U1i9qZLJCVL7 boz5UB6KaRmgtHCFyebtm7pQzEg2qxRZBsHsVpLykSeMsV8m4KVHbWOhDg7AG9UJa2/P by4oQlqIn1sYuUGzYZ5QrZQ/H6xywH9mh3oDCF2dGcBwEoQhbJK2cYh+vFhAD4hgU74C Xti0vbiXkJXF60vmrLpVtqFZchryJcOHkeGY2q855+gD0pWHAykMdzHNOJQnRnTpcCO4 OzyIigTFt6q3qmkc/O3+ofQWOnPQRJdeWwQw96jTQ7rpQZ/4JwZ1137zA2f5jbAjcQ86 mzuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=dOQqQJ+lXM5S0ao1mBTzlX5iRBmqSS7LWFeRfOrOSIw=; b=T7VUvnwTGLcaYD+4XO/kXMyofp4IVTgWoekaj1Yy+r/UtDVfjdzWvkqM8Ha86IQQW7 +bxPUgOtiwgkCga/w8bY7fcrlWYW1oqmkH5dinzbfY0W1yqwM8FOKAJyqFjgzkcWJyuy 8z/eGSuC2c5yo/KyIG2cvNuS6hLpDmaFCBkHCVOyyVd630aQ8EJ/agFSnZ0rShUATQMe 1wgnu6tP0NgJItke7NwhXYyOdyOXjq87jneaRPC+luVe1/kfhabgvLgEtTZobaPjPxWm 3pZgJ71GWDQPVduJfjcwEPsKgpccEEXaIGRN0DV+tWxw+7tGbSpvaN7frwmLaGIACpBm 0Hgw== X-Gm-Message-State: APf1xPCJBaVB65Az28Sf5d9sNWexijCjqa6/pNPXEJBjb2U6YOqJUybt Tn82hIOC2eqMETUS9nejeJCV5tJu4arLdaUFq3E= X-Google-Smtp-Source: AH8x224w64E8irQC/Xiy8165C4nIqQLod74qYgPZePPrN/euq5Y+jpT/lRarmIZIwmX7OF/bLG2RzRl/BYbbDWNu0Fc= X-Received: by 10.237.35.87 with SMTP id i23mr957457qtc.59.1519152523496; Tue, 20 Feb 2018 10:48:43 -0800 (PST) MIME-Version: 1.0 Received: by 10.200.63.53 with HTTP; Tue, 20 Feb 2018 10:48:43 -0800 (PST) From: Roy Shterman Date: Tue, 20 Feb 2018 20:48:43 +0200 Message-ID: To: dev@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] What is the impact of RTE_FORCE_INTRINSIC on performance 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: , X-List-Received-Date: Tue, 20 Feb 2018 18:48:44 -0000 Hi, I'm running DPDK on Intel x86 processor which supports SSE2, in my current deployment I didn't enabled RTE_FORCE_INTRINSIC. After reading on Intel's intrinsic pause I wonder if I should enable it or not. especially how it should impact on latency those noop command going through the CPU. Also, I wonder does it matter if I have contention on shard objects pool and on spinlocks? Thanks, Roy