Date: Wed, 31 Jan 1996 18:36:23 +0000 () From: "John S. Dyson" <toor@dyson.iquest.net> To: jehamby@lightside.com (Jake Hamby) Cc: peter@jhome.DIALix.COM, freebsd-hackers@FreeBSD.org Subject: Re: Good news -- pipe stuff Message-ID: <199601311836.SAA03189@dyson.iquest.net> In-Reply-To: <Pine.AUX.3.91.960131102030.15314A-100000@covina.lightside.com> from "Jake Hamby" at Jan 31, 96 10:31:56 am
next in thread | previous in thread | raw e-mail | index | archive | help
> > Another thing to look into, although I don't have a benchmark on this, but > FreeBSD has a nasty tendency to "bind" during heavy VM/disk activity. I > don't know if this is because the IDE driver is CPU intensive, or if this > affects people (to a lesser extent) with SCSI drives. It's just that when > the system starts paging out to disk, activity in other windows freezes up > too. I have 24MB of RAM on my box at home, and notice this quite often, > which is even more surprising since I don't push my system more than, say, > running a copy of Netscape, emacs, pine, and maybe a compile. > That problem has been fixed in -current, I believe. It was really starting to bug me :-). > Speaking of VM, I set up a system with only 8MB of RAM running FreeBSD, > and even though we made a 24MB swap partition, occasionally it fills up. > Both boxes are running 2.1.0-RELEASE. If it is not too difficult, I > would be REALLY grateful if we could add functionality to add swapfiles > and swap partitions to a running system. You can add swap files, there are people who know how, but you need to use the vn device right now. > Even better would be the > ability to remove the swapfile without rebooting. Linux (and most > SVR4's) have had this functionality for a LONG time. As it is, our BSD > limitation of only swapping to the b slice of any particular partition is > EXTREMELY frustrating in such situations where extra swap is temporarily > needed. Absolutely, you are right, and I am going to add that to my hotlist. Next time I start working on the swap pager and friends (which it really does need to be now, with the VOP_GETPAGES/VOP_PUTPAGES functionality in the system.) John Dyson
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199601311836.SAA03189>