From owner-freebsd-current@FreeBSD.ORG Thu Oct 16 01:32:31 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2D47016A4B3 for ; Thu, 16 Oct 2003 01:32:31 -0700 (PDT) Received: from mail.chesapeake.net (chesapeake.net [208.142.252.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2B70F43F75 for ; Thu, 16 Oct 2003 01:32:30 -0700 (PDT) (envelope-from jroberson@chesapeake.net) Received: from localhost (jroberson@localhost) by mail.chesapeake.net (8.11.6/8.11.6) with ESMTP id h9G8WSa73388; Thu, 16 Oct 2003 04:32:28 -0400 (EDT) (envelope-from jroberson@chesapeake.net) Date: Thu, 16 Oct 2003 04:32:28 -0400 (EDT) From: Jeff Roberson To: Eirik Oeverby In-Reply-To: <3F8E53C3.8040405@anduin.net> Message-ID: <20031016043006.B30029-100000@mail.chesapeake.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: current@freebsd.org Subject: Re: More ULE bugs fixed. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Oct 2003 08:32:31 -0000 On Thu, 16 Oct 2003, Eirik Oeverby wrote: > Jeff Roberson wrote: > > On Wed, 15 Oct 2003, Eirik Oeverby wrote: > > > > > >>Eirik Oeverby wrote: > >> > >>>Jeff Roberson wrote: > >>> > >>> > >>>>I fixed two bugs that were exposed due to more of the kernel running > >>>>outside of Giant. ULE had some issues with priority propagation that > >>>>stopped it from working very well. > >>>> > >>>>Things should be much improved. Feedback, as always, is welcome. I'd > >>>>like to look into making this the default scheduler for 5.2 if things > >>>>start looking up. I hope that scares you all into using it more. :-) > >>> > >>> > >>>Hi.. > >>>Just tested, so far it seems good. System CPU load is floored (near 0), > >>>system is very responsive, no mouse sluggishness or random > >>>mouse/keyboard input. > >>>Doing a make -j 20 buildworld now (on my 1ghz p3 thinkpad ;), and > >>>running some SQLServer stuff in VMWare. We'll see how it fares. > >> > >>Hi, just a followup message. > >>I'm now running the buildworld mentioned above, and the system is pretty > >>much unusable. It exhibits the same symptoms as I have mentioned before, > >>mouse jumpiness, bogus mouse input (movement, clicks), and the system is > >>generally very jerky and unresponsive. This is particularily evident > >>when doing things like webpage loading/browsing/rendering, but it's > >>noticeable all the time, no matter what I am doing. As an example, the > >>last sentence I wote without seeing a single character on screen before > >>I was finsihed writing it, and it appeared with a lot more typos than I > >>usually make ;) > >> > >>I'm running *without* invariants and witness right now, i.e. a kernel > >>100% equal to the SCHED_4BSD kernel. > > > > > > Can you confirm the revision of your sys/kern/sched_ule.c file? How does > > SCHED_4BSD respond in this same test? > > Yes I can. From file: > __FBSDID("$FreeBSD: src/sys/kern/sched_ule.c,v 1.59 2003/10/15 07:47:06 > jeff Exp $"); > I am running SCHED_4BSD now, with a make -j 20 buildworld running, and I > do not experience any of the problems. Keyboard and mouse input is > smooth, and though apps run slightly slower due to the massive load on > the system, there is none of the jerkiness I have seen before. > > Anything else I can do to help? Yup, try again. :-) I found another bug and tuned some parameters of the scheduler. The bug was introduced after I did my paper for BSDCon and so I never ran into it when I was doing serious stress testing. Hopefully this will be a huge improvement. I did a make -j16 buildworld and used mozilla while in kde2. It was fine unless I tried to scroll around rapidly in a page full of several megabyte images for many minutes. > > /Eirik > > > Thanks, > > Jeff > > > > > >>Best regards, > >>/Eirik > >> > >> > >>_______________________________________________ > >>freebsd-current@freebsd.org mailing list > >>http://lists.freebsd.org/mailman/listinfo/freebsd-current > >>To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > >> > > > > > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > >