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 E7F35C636CC for ; Mon, 13 Feb 2023 17:34:12 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 4407D3CBF80 for ; Mon, 13 Feb 2023 18:34:10 +0100 (CET) Received: from in-7.smtp.seeweb.it (in-7.smtp.seeweb.it [217.194.8.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id CC5F33C1047 for ; Mon, 13 Feb 2023 18:33:58 +0100 (CET) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) (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-7.smtp.seeweb.it (Postfix) with ESMTPS id D53DC200346 for ; Mon, 13 Feb 2023 18:33:57 +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-out2.suse.de (Postfix) with ESMTPS id CAE2D1FEC6; Mon, 13 Feb 2023 17:33:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1676309636; h=from:from:reply-to: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=26uqpcJpOoMJ32OBgkzaYYLjC5ORFfsiFzb3iRs8BTk=; b=3MSgQeXvB2IYBEHotj3fpaTYkciq6+4fRlBnAudPHNyvC1fhVx0famM1NkeunX1hi+KoCm ewQRlqWgPe4xZVqKMDKSjiyJ907SoRuPYtvsmFpbcybxrYS06mBzvwXSqGQBfXVh773ZYn pwpBqBlNPhNn218qg7TklnIuaDSA47U= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1676309636; h=from:from:reply-to: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=26uqpcJpOoMJ32OBgkzaYYLjC5ORFfsiFzb3iRs8BTk=; b=t1kk5sbdvfymiTGf0Gw/Xz3WvwLzS3ezgHruuE0NwTYBGRcEbFl4NN3ncUXa/2jRo/e7DX h6OySx+8e+0hMrDQ== 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 79DA51391B; Mon, 13 Feb 2023 17:33:56 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id fGx3GIR06mOdYwAAMHmgww (envelope-from ); Mon, 13 Feb 2023 17:33:56 +0000 Date: Mon, 13 Feb 2023 18:33:54 +0100 From: Petr Vorel To: Leo Yu-Chi Liang Message-ID: References: <20230213134104.229241-1-ycliang@andestech.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230213134104.229241-1-ycliang@andestech.com> X-Virus-Scanned: clamav-milter 0.102.4 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH 1/1] lib/tst_pid.c: Count used pid by traversing /proc 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: , Reply-To: Petr Vorel 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 Leo, > Use "ps -eT | wc -l" to calculate the number of used pid > could have an incorrectly larger result because "ps -eT" > may list the same pid multiple times (with different SPID). > Instead, we could count used pid by traversing /proc > directory and count the subdirectories that have name > composed of digits. > Increase PIDS_RESERVED to avoid fork failure. Thank you! Waiting little longer before merging to give others change to have look. Suggested-by: Petr Vorel Reviewed-by: Petr Vorel Kind regards, Petr -- Mailing list info: https://lists.linux.it/listinfo/ltp