Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp4616657pxa; Mon, 10 Aug 2020 13:38:30 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz2aFt7qtKeHkRux5O39zitRPpqcVO1a3Jga/p9JWJLQ8SObIZdVU0tYxM0OkUo75n20ZVM X-Received: by 2002:a17:906:551:: with SMTP id k17mr22652753eja.322.1597091909892; Mon, 10 Aug 2020 13:38:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1597091909; cv=none; d=google.com; s=arc-20160816; b=tHqqpFSq11lj9b7nFbWuL28lprIxj4tPEWNNB8Ohy8nVm190qRpWjYCs5q6S1+FO7n wNjRvYxii+/58wFDfasIENQH7+uf1YFPOwloExXp4t2M+9kVxAjaNG3VO2+bnkh5aSpY t98PUsPAQfZsI0ky4zFWEyKhgSijkuASPIcBSxZqKRxynF4aeAL1OYSRnRDyYqWy+hzq P75sx8rGYqVTbork4ct9e1Ck2hUAlYkmkXq7F6nHmR8kZsC+UKHfPcZV+LdUVLbrVkT/ d/rWDs7pa0eOe7g15l+i+eKfce5WyqWK61Vvy5daLt7156wtk9eFYOj3NqbCF8v/BKHn 1FNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=5/YX7mbPG9aXUarjwzHhusSBv2gDsz45AkVWwrnituE=; b=NGGXwz8NYN7Yb8CkepOFotGQYj4i0XouBtXHWF43bx+Ntjab02OQtqocK5RWMgahA/ +uS76ifSUFlP36+WcMMrC5v9xetm25EP4Mdfn7KBfpQme2KDgA09NvbH53feCIIC1Y4d fqRjr73qVpYofsmzpu8Tnmu+fuV5DuMJFKQprJKeRu2RapA1Z1Clgz4VCye0NqEoHf/P miwz904Hz/zhrOfeYmxLru0hBE63qSJYQiuf9EhRhus8urPsG7fgYQtCTGaEWvEiHm35 dIx4AlIQk2vS2T0rli4D6KvDBF2iYX2qslxEbcLY4gMSugLF/3jFVcBkBQMNz/DsCf+m Puhg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=lG9BDioB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id w4si11559093ejb.443.2020.08.10.13.38.06; Mon, 10 Aug 2020 13:38:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=lG9BDioB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726697AbgHJUgr (ORCPT + 99 others); Mon, 10 Aug 2020 16:36:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55306 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726469AbgHJUgq (ORCPT ); Mon, 10 Aug 2020 16:36:46 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FD3EC061756 for ; Mon, 10 Aug 2020 13:36:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=5/YX7mbPG9aXUarjwzHhusSBv2gDsz45AkVWwrnituE=; b=lG9BDioB5fkj9M/z8owgD9Qrho FWBwsWB5kiD1N0Z9dsBHMW3J9def5BwwIVXlTnsgQaqKuj3ZHLiKQ1MpGuky5V1n1jUHVeNs3EgfS /D2SJYiMPDRiRjlzJakGkP6sj5H99jacfRWZ7LrAfJFriB6U9vR1P2T7mQjE03s/KT5zs7vkGk3Uw DmXSY87e66gjSHQBsBmJgbsrh5mAjf1lEZOORN4VnxYGQ5NTzdnxT/PDSdkdoCkpihqb2hPYCZi1F dcTqWSxrbrSB/bzG5fuYTRwR3AerDD29bm+e9uqNhSGIuBtcJX0sJNP6yixf/LFrMqbQbXPusAc9S 5NsZ5iOA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5EX2-0007kf-J7; Mon, 10 Aug 2020 20:36:33 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 3B71A980D39; Mon, 10 Aug 2020 22:36:32 +0200 (CEST) Date: Mon, 10 Aug 2020 22:36:32 +0200 From: Peter Zijlstra To: Andi Kleen Cc: Alexander Shishkin , Arnaldo Carvalho de Melo , Ingo Molnar , linux-kernel@vger.kernel.org, Jiri Olsa , alexey.budankov@linux.intel.com, adrian.hunter@intel.com Subject: Re: [PATCH 1/2] perf: Add closing sibling events' file descriptors Message-ID: <20200810203632.GF3982@worktop.programming.kicks-ass.net> References: <20200708151635.81239-1-alexander.shishkin@linux.intel.com> <20200708151635.81239-2-alexander.shishkin@linux.intel.com> <20200806083530.GV2674@hirez.programming.kicks-ass.net> <20200806153205.GA1448395@tassilo.jf.intel.com> <875z9q1u3g.fsf@ashishki-desk.ger.corp.intel.com> <20200810144518.GB1448395@tassilo.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200810144518.GB1448395@tassilo.jf.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 10, 2020 at 07:45:18AM -0700, Andi Kleen wrote: > Unfortunately we're kind of stuck with the old NFILE=1024 default > even though it makes little sense on modern servers. Why can't that be changed? It seems to me all of userspace changes all the time; heck that system-doofus thing flushed 20+ years of sysadmin experience down the drain, just cause. Why can't we up a file limit?