From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755977AbeASPqb (ORCPT ); Fri, 19 Jan 2018 10:46:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:58462 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755524AbeASPqX (ORCPT ); Fri, 19 Jan 2018 10:46:23 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFF7F21456 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=frederic@kernel.org From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Levin Alexander , Peter Zijlstra , Mauro Carvalho Chehab , Linus Torvalds , Hannes Frederic Sowa , "Paul E . McKenney" , Wanpeng Li , Dmitry Safonov , Thomas Gleixner , Andrew Morton , Paolo Abeni , Radu Rendec , Ingo Molnar , Stanislaw Gruszka , Rik van Riel , Eric Dumazet , David Miller Subject: [RFC PATCH 0/4] softirq: Per vector threading v3 Date: Fri, 19 Jan 2018 16:46:10 +0100 Message-Id: <1516376774-24076-1-git-send-email-frederic@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As per Linus suggestion, this take doesn't limit the number of occurences per jiffy anymore but instead defers a vector to workqueues as soon as it gets re-enqueued on IRQ tail. No tunable here, so testing should be easier. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git softirq/thread-v3 HEAD: 6835e92cbd70ef4a056987d2e1ed383b294429d4 Thanks, Frederic --- Frederic Weisbecker (4): softirq: Limit vector to a single iteration on IRQ tail softirq: Per vector deferment to workqueue softirq: Defer to workqueue when rescheduling is needed softirq: Replace ksoftirqd with workqueues entirely Documentation/RCU/stallwarn.txt | 4 +- include/linux/interrupt.h | 7 +- kernel/sched/cputime.c | 12 +-- kernel/sched/sched.h | 4 +- kernel/softirq.c | 223 +++++++++++++++++++++++----------------- net/ipv4/tcp_output.c | 5 +- 6 files changed, 144 insertions(+), 111 deletions(-)