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 Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 98858C433EF for ; Mon, 20 Dec 2021 13:25:00 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 77B643C9172 for ; Mon, 20 Dec 2021 14:24:58 +0100 (CET) Received: from in-6.smtp.seeweb.it (in-6.smtp.seeweb.it [217.194.8.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id EAEC13C0B99 for ; Mon, 20 Dec 2021 14:24:48 +0100 (CET) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-6.smtp.seeweb.it (Postfix) with ESMTPS id 553391401176 for ; Mon, 20 Dec 2021 14:24:47 +0100 (CET) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 8D7C0212B5; Mon, 20 Dec 2021 13:24:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1640006687; h=from:from:reply-to: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=KLdvXdm0rPlRXDA3ckaAzJTfRtzI/PJiszH0GOTECnw=; b=jTKJ23zobI6ERRcu7pBSszoFRb3K/aUt1AvJkigSmCsnM4+39N99U58ZnH9S2o4bwMelro FaPtJWq7xb+sk+njaDnV9DcoP3Q8nRVdWraCsVAA9A4e2KoomruyBlYlQ2t57Jrsu26Eni TK86g6yJO/osCaaVMS001BoTpfjGjd4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1640006687; h=from:from:reply-to: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=KLdvXdm0rPlRXDA3ckaAzJTfRtzI/PJiszH0GOTECnw=; b=XbFdvnvyyXz1HPteE+47E8MfGfYuLlE4wKXPseoS9+EI+GAcjGabVRPnkCfkwy+zvTHhAA nwTI0gri+IE5yuAQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 7AFD113CA1; Mon, 20 Dec 2021 13:24:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id iucyHB+EwGEOewAAMHmgww (envelope-from ); Mon, 20 Dec 2021 13:24:47 +0000 Date: Mon, 20 Dec 2021 14:26:17 +0100 From: Cyril Hrubis To: Li Wang Message-ID: References: <20211220095416.583323-1-liwang@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211220095416.583323-1-liwang@redhat.com> X-Virus-Scanned: clamav-milter 0.102.4 at in-6.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH v3 1/3] lib: add functions to adjust oom score X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ltp@lists.linux.it Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi! > This introduces function to LTP for adjusting the oom_score_adj of ^ to adjust > target process, which may be helpful in OOM tests to prevent kernel > killing the main or lib process during test running. ^ test run. > The exported global tst_enable_oom_protection function can be used > at anywhere you want to protect, but please remember that if you > do enable protection on a process($PID) that all the children will > inherit its score and be ignored by OOM Killer as well. So that's > why tst_disable_oom_protection is recommended to combination in use. ^ to be used in combination. Reviewed-by: Cyril Hrubis -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp