From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB6ABC433DF for ; Sun, 11 Oct 2020 10:29:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 84A4C2083B for ; Sun, 11 Oct 2020 10:29:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ipdTQFud" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729717AbgJKK3r (ORCPT ); Sun, 11 Oct 2020 06:29:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729693AbgJKK3r (ORCPT ); Sun, 11 Oct 2020 06:29:47 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54892C0613CE; Sun, 11 Oct 2020 03:29:47 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id r10so11224220pgb.10; Sun, 11 Oct 2020 03:29:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=C1KPnMgJ65IAvAdqRGhP0IKoKnOw4H6Tv8QLXkVMTpk=; b=ipdTQFudIgX+/95HPKoeJDSTGlYyY1R4AKjV7AJXPFvcYYUUaM/kSLKsGZBw1PCtC+ ERu0QKF5gAevSBOohzbf24jz7MHg3trLtifirLqKgsmXu646cO4unhmrsJ0xcr43w7GG 2STcH0kDbnc9lIn2VH+WBxu4K00qyenMr6m1CSXKEzxdh9MEYIfbdwq1Kg4gLE58wza4 2lO3DNLa7x1EjyZQlYxBz/JAvYXai1v9pgtWzlCHXV0iByU0E9VjrEh5l3fylytfBUKZ I1ySo56Y4sPK5bxAwD9fY0BwXZZlhr2jEnd1cfOynkz4SJE+LPJhwJ0rnYH4MuxWghKD b1cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=C1KPnMgJ65IAvAdqRGhP0IKoKnOw4H6Tv8QLXkVMTpk=; b=FR4JVbqOaMYk/Nt5OFikZ7MfV3gWayzMV0JyVkFVK0DcY93uAAWByKxtNvzSf6fV8d vNBEuSKtn/Z5SCovBBw7iHHFhgqa3Yfcgbkdl/QV0t9fD2BDZXJFQKNMTMJuMpi6OBFw H1RO5Cjj6Z/kZ1Numk++OYw5n/mZ3aVT3HY1fBPif11NIzNVK1Rvh/DiTDEeKqakB+aX SqY0dyRsvpFZXrXotwc0vlWvtAZkSUjhLZX/iVXtxcNQ7ie3armv/wD3QXaNIo0q6JCc FDYu+d4pdBBfXMmdTVuZtaFhw5XaYwHnApOhkscW3xftut1DZ+PU/Vv14qvUA+vRimyZ uTVA== X-Gm-Message-State: AOAM532F1L77OvPmKpaHkGt2MAdVNz6skouQxLUXiaFs+H00IPFt2eQ+ dK+9MfdwOV/0Jl5XFik3tCo= X-Google-Smtp-Source: ABdhPJwnb69Aqohdd1/q0tobIuWCkoI//DISJfM5lGloQ9TYgzKNGcZiha9HsOOfOFKfB5b4dOaKDA== X-Received: by 2002:a17:90a:dd46:: with SMTP id u6mr15384584pjv.67.1602412186950; Sun, 11 Oct 2020 03:29:46 -0700 (PDT) Received: from adolin ([49.207.215.73]) by smtp.gmail.com with ESMTPSA id e16sm17421201pfh.45.2020.10.11.03.29.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Oct 2020 03:29:46 -0700 (PDT) Date: Sun, 11 Oct 2020 15:59:42 +0530 From: Sumera Priyadarsini To: Julia.Lawall@lip6.fr Cc: corbet@lwn.net, Gilles.Muller@lip6.fr, nicolas.palix@imag.fr, michal.lkml@markovi.net, cocci@systeme.lip6.fr, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v4 2/3] scripts: coccicheck: Change default condition for parallelism Message-ID: <13de95fe3959459ac9ae8c74d99eb7e3c5702a2d.1602410019.git.sylphrenadin@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, Coccinelle uses at most one thread per core by default in machines with more than 2 hyperthreads. However, for systems with only 4 hyperthreads, this does not improve performance. Modify coccicheck to use all available threads in machines with upto 4 hyperthreads. Signed-off-by: Sumera Priyadarsini --- scripts/coccicheck | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/coccicheck b/scripts/coccicheck index d67907b8a38b..209bb0427b43 100755 --- a/scripts/coccicheck +++ b/scripts/coccicheck @@ -79,7 +79,7 @@ else THREADS_PER_CORE=$(lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]") if [ -z "$J" ]; then NPROC=$(getconf _NPROCESSORS_ONLN) - if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 2 ] ; then + if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 4 ] ; then NPROC=$((NPROC/2)) fi else -- 2.25.1