From owner-freebsd-current@FreeBSD.ORG Mon Aug 27 12:46:50 2012 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 11427106564A; Mon, 27 Aug 2012 12:46:50 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.friendlyhosting.spb.ru (onlyone.friendlyhosting.spb.ru [IPv6:2a01:4f8:131:60a2::2]) by mx1.freebsd.org (Postfix) with ESMTP id 9DFD38FC28; Mon, 27 Aug 2012 12:46:49 +0000 (UTC) Received: from lion.home.serebryakov.spb.ru (unknown [IPv6:2001:470:923f:1:b893:d73f:3750:2064]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.friendlyhosting.spb.ru (Postfix) with ESMTPA id 5B2504AC2D; Mon, 27 Aug 2012 16:46:48 +0400 (MSK) Date: Mon, 27 Aug 2012 16:46:46 +0400 From: Lev Serebryakov Organization: FreeBSD X-Priority: 3 (Normal) Message-ID: <198519466.20120827164646@serebryakov.spb.ru> To: Lev Serebryakov In-Reply-To: <135297243.20120827061957@serebryakov.spb.ru> References: <135297243.20120827061957@serebryakov.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-current@freebsd.org Subject: What is "Fast task queue"? (Was: How to understand what `swi5' kernel thread does?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: lev@FreeBSD.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Aug 2012 12:46:50 -0000 Hello, Lev. You wrote 27 =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2012 =D0=B3., 6:19:= 57: I've found (with help of debug printing added to kernel), that "swi5" has only one handler "Fast task queue" (name is too long to be seen in `top' output, may be, rename it to "fast tqueue"?) What "fast tasks" are performed via this queue? Under network load it is main consumer of CPU. --=20 // Black Lion AKA Lev Serebryakov