From owner-freebsd-stable@freebsd.org Mon Aug 24 22:18:02 2015 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AC1BB9C14FB for ; Mon, 24 Aug 2015 22:18:02 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 95B9E1E56 for ; Mon, 24 Aug 2015 22:18:02 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: by mailman.ysv.freebsd.org (Postfix) id 94A779C14FA; Mon, 24 Aug 2015 22:18:02 +0000 (UTC) Delivered-To: stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 943A29C14F9 for ; Mon, 24 Aug 2015 22:18:02 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from zxy.spb.ru (zxy.spb.ru [195.70.199.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5204C1E53 for ; Mon, 24 Aug 2015 22:18:02 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from slw by zxy.spb.ru with local (Exim 4.84 (FreeBSD)) (envelope-from ) id 1ZU03y-0003CC-Uz; Tue, 25 Aug 2015 01:17:58 +0300 Date: Tue, 25 Aug 2015 01:17:58 +0300 From: Slawa Olhovchenkov To: Eric Joyner Cc: stable@freebsd.org Subject: Re: dev.ix.0.queueX.interrupt_rate Message-ID: <20150824221758.GF21849@zxy.spb.ru> References: <20150824192926.GL3158@zxy.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: slw@zxy.spb.ru X-SA-Exim-Scanned: No (on zxy.spb.ru); SAEximRunCond expanded to false X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Aug 2015 22:18:02 -0000 On Mon, Aug 24, 2015 at 10:13:05PM +0000, Eric Joyner wrote: > What's strange about it? The interrupt rate only changes if traffic goes > out on the queue, and so if whatever applications you use don't utilize the > core the queue is bound to, then the interrupt rate won't change. > > Or are you confused about the units? I know ixl(4) uses usecs instead of > Hz, so ix(4) should probably change to use that at some point. By default `hw.ix.max_interrupt_rate: 31250` and I confused about some queue exceed this. And I can set dev.ix.0.queue4.interrupt_rate to 31250 (by sysctl) and this changes accepted. I am to be out of it. > On Mon, Aug 24, 2015, 12:29 PM Slawa Olhovchenkov wrote: > > > I have '82599ES 10-Gigabit SFI/SFP+ Network Connection' and see > > strange: > > > > # sysctl dev.ix.0 | grep interrupt_rate > > dev.ix.0.queue7.interrupt_rate: 500000 > > dev.ix.0.queue6.interrupt_rate: 500000 > > dev.ix.0.queue5.interrupt_rate: 31250 > > dev.ix.0.queue4.interrupt_rate: 31250 > > dev.ix.0.queue3.interrupt_rate: 31250 > > dev.ix.0.queue2.interrupt_rate: 500000 > > dev.ix.0.queue1.interrupt_rate: 500000 > > dev.ix.0.queue0.interrupt_rate: 500000 > > > > Last -stable, no tuning. Is this normal? > > > > _______________________________________________ > > freebsd-stable@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >