Path: utzoo!utgpu!water!watmath!clyde!att!ucbvax!ucsfcgl!seibel From: seibel@cgl.ucsf.edu (George Seibel) Newsgroups: comp.unix.questions Subject: "Deep Background" applications Message-ID: <11019@cgl.ucsf.EDU> Date: 25 Jun 88 23:14:13 GMT References: <649@necis.UUCP> <29500025@urbsdc> Sender: daemon@cgl.ucsf.edu Reply-To: seibel@hegel.mmwb.ucsf.edu.UUCP (George Seibel) Organization: UCSF Computer Graphics Lab Lines: 20 In article <29500025@urbsdc> aglew@urbsdc.Urbana.Gould.COM writes: ] ][buncha stuff about Gould RT unix] ] ]Finally, may I say that Real Time UNIX features are useful for ]more than Real Time applications? For example, fixed priority ]scheduling - there have been many times that I wanted to have ]a "deep background" application, that would run only when the ]system is otherwise idle. No matter how much you nice, your ]process will still take some cycles away when the system isn't ]idle. Boy, would that be nice. We have a job mix that includes a healthy fraction of multi-day cpu burners. We'd really like a way to make those jobs butt out when someone wants to run a short (10 min-1 hr) job. Does anyone know of an easy way to do something like this on a bsd 4.[2-3] system? George Seibel, UCSF seibel@cgl.ucsf.edu