Newsgroups: comp.unix.aix
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!sdd.hp.com!wuarchive!rice!katzo.rice.edu!zdenko
From: zdenko@katzo.rice.edu (zdenko tomasic)
Subject: run-time settting of PIPE_BUF
Message-ID: <1991Jun10.185820.8120@rice.edu>
Summary: pipe (in )efficiency 
Sender: news@rice.edu (News)
Organization: Rice University
References: <1991Jun10.165521.10248@murdoch.acc.Virginia.EDU>
Date: Mon, 10 Jun 91 18:58:20 GMT

Does anybody know how to change the pipe buffer PIPE_BUF? I suspect
that it has a value of 512 bytes (POSIX conformance?), but according
to /usr/include/sys/limits.h, it can be increased to 32KB at
run-time. I was not able to find out from info how to achieve that.
Default pipe behavior in AIX is rather inefficient with too many
context switches.

Thanks for your attention.
--
___________________________________________________________________
Zdenko Tomasic, Rice U., Chem. Dept., P.O. Box 1892, Houston, Tx 77251
INTERNET: zdenko@katzo.rice.edu
___________________________________________________________________