Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751567AbXBAE2K (ORCPT ); Wed, 31 Jan 2007 23:28:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161167AbXBAE2J (ORCPT ); Wed, 31 Jan 2007 23:28:09 -0500 Received: from wx-out-0506.google.com ([66.249.82.230]:31318 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751591AbXBAE2I (ORCPT ); Wed, 31 Jan 2007 23:28:08 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=jPS4pVSWMC33B48spE5DaJ35okjnNKpZ5nZAtq9QyWmJz8jQ0VY3uoKFd1Dr+XsAaTOFq7EpzeOQC6yhEeaos++VDZELjTcpWnXsgDF1fxV1mqr+cBBdFaL4VNH7JwVFP+WYrxCiIvoCE8A1J1PZE6rhZt2woFzf6GYgGFjSATM= Message-ID: <75b66ecd0701312028w7866c608hbf70593055c92b19@mail.gmail.com> Date: Wed, 31 Jan 2007 23:28:07 -0500 From: "Lee Revell" To: "Evgeniy Polyakov" Subject: Re: [ANN] Userspace M-on-N threading model implementation. Alpha release. Cc: linux-kernel@vger.kernel.org, libc-hacker@sources.redhat.com, libc-alpha@sources.redhat.com In-Reply-To: <20070129145227.GA10524@2ka.mipt.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070129145227.GA10524@2ka.mipt.ru> X-Google-Sender-Auth: 6b6cdfa757020519 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 775 Lines: 17 On 1/29/07, Evgeniy Polyakov wrote: > 1. Scheduling fairness. > Since kernel does not know about multiple threads behind given process, > it can not add it appropriate number of timeslices for execution. > Can be solved either by more tight collaboarion of the userspace and > kernelspace schedulers or simply by increasing process' nice value. nice value is only meaningful for SCHED_OTHER. How will you handle a multithreaded realtime application that uses SCHED_OTHER as well as SCHED_FIFO threads? Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/