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 A1FE7A0A0C; Mon, 5 Jul 2021 10:52:09 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1DD3340141; Mon, 5 Jul 2021 10:52:09 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 5185E4003C for ; Mon, 5 Jul 2021 10:52:07 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1625475126; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=FddCVRyGLg/n71qgDPt5sW8wNIofQn8WLugUaJSXPb8=; b=ePmTAQRgpOP8ZznFV6FWZt5lMxP7t0ar71UZiCkURJCG9FpXyacSYH4cd3rqV/Lh/wvUXa safDkOb08XURvYeALq+Wcwf8hZRf0xsMy8JaVG4kZMN+U6w6oGbNYEmLrT8uWCwNZuCxSU AhR4hZqVE2PRKRUzSyahYO+Q6w8SzSc= Received: from mail-vk1-f197.google.com (mail-vk1-f197.google.com [209.85.221.197]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-582-Umk7I8NrOoCCamgFhIBrFA-1; Mon, 05 Jul 2021 04:52:05 -0400 X-MC-Unique: Umk7I8NrOoCCamgFhIBrFA-1 Received: by mail-vk1-f197.google.com with SMTP id o191-20020a1f73c80000b029024d047ad201so4781895vkc.5 for ; Mon, 05 Jul 2021 01:52:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=FddCVRyGLg/n71qgDPt5sW8wNIofQn8WLugUaJSXPb8=; b=OlzkdSf8+BfLdV3kU9crzlsp2pf9hzxz2CIl9oIRWVBQ12LdOS64JLNrY035LYXPJi LwUiDYBokJd8fczFHUKykYcPHaMWc7TovWaQ/yGzb7W5r64egO2LGW7plToQFYUTXJUA q3VA1kKYW0QSa+8JRnLC8Y1QUlhwCt2LmFqIlH0hXlvxe4ZdcnFRV1rTaoZDXkoxrEUX 7biPbyMyked5viG58NbqcDpA6lz1jCs0zybTS8lY5T/FZOzQnh1PiKRK7X+by8PCgOdG 9bC/9gBt8rciMQOnq6lAXDIsuhqquIXLqL5wieBdPsXq+T1M23CoiChjO67KnZeDf7YY 6XZg== X-Gm-Message-State: AOAM532Y6m8I0e8dGnyHL8QxtKjM9AQX0SueOuo0cJJgcZ0uB8GBxh/M iaynsKW2zghW1Zyrg+fsllSZ0DrVUv+/D0Ub4mUcThHlilSSeLG1+FEJAcLghA7tXMq0tQ7S2Fr I+Tp37I/huhNPftK4LF0= X-Received: by 2002:ab0:590b:: with SMTP id n11mr5182178uad.126.1625475125272; Mon, 05 Jul 2021 01:52:05 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwkNerg+X9sJF1X2M1qcymmFyeRC9tp/K5x+yzAeCEJCdofc5hat0CLQtItdbDmusqUe7Lw67/y9/a2Wkg37iE= X-Received: by 2002:ab0:590b:: with SMTP id n11mr5182169uad.126.1625475125079; Mon, 05 Jul 2021 01:52:05 -0700 (PDT) MIME-Version: 1.0 References: <20200424070741.16619-1-gavin.hu@arm.com> <2370044.79WzprfWfc@thomas> <20248566.ii5BvqWlRQ@thomas> In-Reply-To: From: David Marchand Date: Mon, 5 Jul 2021 10:51:53 +0200 Message-ID: To: Ruifeng Wang Cc: Bruce Richardson , Honnappa Nagarahalli , "thomas@monjalon.net" , dev , "jerinj@marvell.com" , nd Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dmarchan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Subject: Re: [dpdk-dev] Use WFE for spinlock and ring 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" On Fri, May 7, 2021 at 12:24 PM Bruce Richardson wrote: > > > > The problem is inconsistency in performance on different Arm platforms. > > > We had decided that each platform needs to enable it after some testing. > > > > > > Then it sounds like it does indeed need to be a build option. Does it need to > > > be added to the meson_options.txt, or can it just be specified in cross-files > > > and optionally via c_args? > > > > Add it to the meson_options.txt is good as the option will be clearly exposed. > > My concern is more options (e.g. RTE_ARCH_ARM64_MEMCPY) need to be added in. > > Will the options bloat meson_options.txt? > > That bloat would indeed become a concern. We may need to look at more use > of auto-detection and cross files for such options. Ruifeng, This series is blocked on this last topic. Do you intend to send a n+1? -- David Marchand