From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: dell precision m50 _very_ slow paging/swapping Date: Sat, 11 Jan 2003 10:12:55 -0800 Sender: linux-laptop-owner@vger.kernel.org Message-ID: <200301111012.55150.akpm@digeo.com> References: <3E203A45.B590F101@petcom.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7BIT Return-path: In-Reply-To: <3E203A45.B590F101@petcom.com> List-Id: Content-Type: text/plain; charset="us-ascii" To: Roe Peterson , linux-laptop@vger.kernel.org, linux-kernel@vger.kernel.org On Sat January 11 2003 07:37, Roe Peterson wrote: > > Although Dell doesn't consider the precision M50 a laptop (it's a > "portable workstation"), this list > looks like a good place to start :-) > > I'm having a big problem with a brand-new M50. The symptoms persist > whether I try Redhat 7.3 > or 8.0. > > Generally, everything is fine, right up to the time the machine starts > paging out to disk. Then, the > system essentially grinds to a halt. > You'd need to determine whether the CPU is busy or idle when this is happening. If it's busy, profile the kernel: - boot with "profile=1" on the kernel command line - readprofile -r readprofile -v -m /boot/System.map | sort -n +2 | tail -40 It it's not busy, then: while true do ps axl | grep ' D ' sleep 1 done &