From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8BA1113B7BC; Tue, 19 Nov 2024 11:15:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732014942; cv=none; b=ICv31dcKAYyPGbzPaDeq+t+g+mQEX/gM6s9vNAnjhvwuh/oBk7rwU/7zJI9+2xFKra4w2oBBpqM1a3OJdq/UkRpohhPn3fo7HXAGOCcDEa27xdixzq5U66RsrJhoZ4s08OldjDXzoX0DGBWLgf4Yq5JWr9ARnWKANAgyDKwpv2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732014942; c=relaxed/simple; bh=hAy+6h8hD83vogCaMVHUYUxGM29IK/lT7Q82iQN8DbU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dFvwMmvZxDqaeCHb052ul5yDSQ3fbXsitL6npRop4hKpMkY9gP99cDNvCNXjhINAGf4H7qvhIVotmNtUaEdbDZeAFujN9PPi4X9Zex3Bi35oy6k8TBUee9pJA9Menkoj5eluoRRRbrTEVvHlPQpwQtdIeeTt5OdQRfl4YSfWNdQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=gDPzIoVM; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="gDPzIoVM" 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=vhDa7EvCwi3Ez1OIMYpMWwMLYL38nMDlxR2DS522TwY=; b=gDPzIoVM5N1CxyJgV3HJjb44G+ TngJypE6QwpWk6R+3Q1dlmwkH+d2jC+utNo6+WBm8SlMrnqSxmTINZ6VqLvU4cSReOHi6jjnKiBHG EWdgs7UDu5g/VnAWOBC6yVLJ9DK3xQJx5VDEtiZUFFmm3v+hQASLARsh4IBnhh6wxY6WSq7iyyhqw wGjK7u8fTcniz6CB8bMsj+bwulQrL3xa769YIBJoBmuSDnisBmTVIAGrpMiv1h5dKjfHzQq+ziUO/ Y7BUL06ewSfgxGr1BW06J/QevOKntpwt4rZRqr9RQTpYWN7CTxIVe6Ikdz/X+FsgZscPK1aNu/D1Y brAbusvQ==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tDMCh-0000000406p-1IOi; Tue, 19 Nov 2024 11:15:32 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 1F1143006AB; Tue, 19 Nov 2024 12:15:31 +0100 (CET) Date: Tue, 19 Nov 2024 12:15:30 +0100 From: Peter Zijlstra To: K Prateek Nayak Cc: Ingo Molnar , Juri Lelli , Vincent Guittot , Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt , linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, Dietmar Eggemann , Ben Segall , Mel Gorman , Valentin Schneider , Thomas Gleixner , Tejun Heo , NeilBrown , Jens Axboe , Frederic Weisbecker , Zqiang , Caleb Sander Mateos , "Gautham R . Shenoy" , Chen Yu , Julia Lawall Subject: Re: [PATCH v5 0/4] sched/fair: Idle load balancer fixes for fallouts from IPI optimization to TIF_POLLING CPUs Message-ID: <20241119111530.GA2328@noisy.programming.kicks-ass.net> References: <20241119054432.6405-1-kprateek.nayak@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241119054432.6405-1-kprateek.nayak@amd.com> On Tue, Nov 19, 2024 at 05:44:28AM +0000, K Prateek Nayak wrote: > K Prateek Nayak (4): > softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT > kernel > sched/core: Remove the unnecessary need_resched() check in > nohz_csd_func() > sched/fair: Check idle_cpu() before need_resched() to detect ilb CPU > turning busy > sched/core: Prevent wakeup of ksoftirqd during idle load balance > Thanks!, I'll stick them in a tree post -rc1.