From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 119400 invoked by alias); 30 May 2019 22:22:03 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 119392 invoked by uid 89); 30 May 2019 22:22:03 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-6.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS autolearn=ham version=3.3.1 spammy=desktop, personal, super X-HELO: gateway20.websitewelcome.com Received: from gateway20.websitewelcome.com (HELO gateway20.websitewelcome.com) (192.185.50.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 30 May 2019 22:22:01 +0000 Received: from cm13.websitewelcome.com (cm13.websitewelcome.com [100.42.49.6]) by gateway20.websitewelcome.com (Postfix) with ESMTP id 0E0AC4017752E for ; Thu, 30 May 2019 16:21:36 -0500 (CDT) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id WTQuhoRWIYTGMWTQuhndnG; Thu, 30 May 2019 17:22:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Xc0ItyeH4RRuzSwZcazilM5xNw6GoZyzO8C/FDcgkwY=; b=RUtbW9725D52toipaPBqPdZush 9B3KJGXXhkhtaZmm3W6XCvzFwCZRtbGQoH+B+PrGWegiMB7RzZttAx5kEH8ulrzFE5hN7ONcpdiOx c+7u5OeBlPiY8f86WpHO1xCOT; Received: from 174-29-48-168.hlrn.qwest.net ([174.29.48.168]:37902 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1hWTQu-001EQk-7j; Thu, 30 May 2019 17:22:00 -0500 From: Tom Tromey To: Pedro Alves Cc: Tom Tromey , gdb-patches@sourceware.org Subject: Re: [PATCH v3 7/8] Demangle minsyms in parallel References: <20190529212916.23721-1-tom@tromey.com> <20190529212916.23721-8-tom@tromey.com> <9e8c0d5c-ca06-fa41-3624-0210013ec08b@redhat.com> Date: Thu, 30 May 2019 22:22:00 -0000 In-Reply-To: <9e8c0d5c-ca06-fa41-3624-0210013ec08b@redhat.com> (Pedro Alves's message of "Thu, 30 May 2019 15:19:01 +0100") Message-ID: <87woi7d1mg.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2019-05/txt/msg00738.txt.bz2 >>>>> "Pedro" == Pedro Alves writes: Pedro> "16 cores ought to be enough for anybody", right? :-) As long as it is more than what's on my personal desktop :) Pedro> Just kidding. Longer term I could see this evolving into Pedro> pulling threads out of a worker thread pool shared by all Pedro> kinds of parallel_for_each calls in the tree, but I'm super Pedro> fine with the simple initial design. The thread pool approach is nice because it means there isn't thread startup overhead -- just whatever overhead there is from pushing jobs onto a queue. On the down side, a thread pool is somewhat more complicated. Still, if we want it eventually, maybe we should just start with it. One possible bad part is that if we don't have std::thread then I wonder if the other things like futures will be available. Tom