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Re: EAGAIN in "read jobs pipe"


From: Howard Chu
Subject: Re: EAGAIN in "read jobs pipe"
Date: Wed, 10 Jan 2007 10:59:18 -0800
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20061216 Netscape/7.2 (ax) Firefox/1.5 SeaMonkey/1.5a

james coleman wrote:
.... not much!

also a build making more calls to make can result in
 jfactor * number of make calls jobs

Only if you're using a totally braindead implementation of make. The whole point of the jobserver pipe is to eliminate this fanout problem.

So I might regularily use maybe -j 10 (when I know 10 more calls to make are made) On some machines this might be unacceptable and bring them to their knees.
On other machines it can work really well.
--
 -- Howard Chu
 Chief Architect, Symas Corp.  http://www.symas.com
 Director, Highland Sun        http://highlandsun.com/hyc
 OpenLDAP Core Team            http://www.openldap.org/project/





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