Article View: comp.bugs.sys5
Article #780Re: Is applying ulimit to pipes a bug?
From: Chris Torek
Date: Thu, 19 May 1988 14:52
Date: Thu, 19 May 1988 14:52
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>In article <244@twg-ap.UUCP> dwh@twg-ap.UUCP (Dave Hamaker) writes: >>> If I don't raise the ulimit, the pipes fail. >>Oh embarrassment! I had come to this conclusion because of past experiences >>and when I try it now, it doesn't fail. In article <7928@brl-smoke.ARPA> gwyn@brl-smoke.ARPA (Doug Gwyn) writes: >Don't be so quick to retract this. Indeed not. As it happens, in older Unixes, the `apparent' size of a pipe was reset only when the reader caught up with the writer (or something along those lines---I never looked at that code, and now my pipes are sockets, but a friend says this). It may be that if the reader is perenially 1 block behind the writer, that the pipe eventually reaches the ulimit. I would have to look at the code to be sure, but it should not be too hard to test. -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163) Domain: chris@mimsy.umd.edu Path: uunet!mimsy!chris
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!purdue!umd5!mimsy!chris From: chris@mimsy.UUCP (Chris Torek) Newsgroups: comp.bugs.sys5 Subject: Re: Is applying ulimit to pipes a bug? Keywords: ulimit pipe filesystem Message-ID: <11575@mimsy.UUCP> Date: 19 May 88 14:52:01 GMT References: <242@twg-ap.UUCP> <244@twg-ap.UUCP> <7928@brl-smoke.ARPA> Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742 Lines: 20