Date: Thu, 29 Jan 2009 09:34:08 -0500 From: "Graham Todd <gtodd@bellanet.org>" <gtodd@bellanet.org> To: "FreeBSD gnats submit" <FreeBSD-gnats-submit@FreeBSD.org> Subject: ports/131122: port devel/gamin default polling frequency increases load w/ large kern.maxfiles Message-ID: <1233239648.4531@wawanesa.iciti.ca> Resent-Message-ID: <200901291510.n0TFA1wD077673@freefall.freebsd.org>
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>Number: 131122 >Category: ports >Synopsis: port devel/gamin default polling frequency increases load w/ large kern.maxfiles >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-ports-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jan 29 15:10:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Graham Todd <gtodd@bellanet.org> >Release: FreeBSD 7.1-PRERELEASE-p1 i386 >Organization: >Environment: System: FreeBSD 7.1-PRERELEASE-p1 #0: Mon Nov 24 11:49:24 UTC 2008 root@i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386 >Description: gam_server consumes a relatively high level of CPU (10%) which pushes overall load quite high for a desktop system. CPU and memory hogging should be the exclusive domain of firefox-bin ;-) ... This appeared on my systems with gamin-0.1.10 and recent gnome upgrade whcih required a higher kern.maxfiles setting. Perhaps gam_server now uses a more frequent default polling interval or the higher kern.maxfiles setting increased its workload. The FreeBSD gamin port/pkg does not include these files: /.gaminrc /usr/local/etc/gamin/gaminrc /usr/local/etc/gamin/mandatory_gaminrc These files can be used to tune polling frequency. >How-To-Repeat: Increase kern.maxfiles to a large number run gam_server and untar/compile several large source packages. The application will begin to consume a large set CPU. >Fix: The fix below seems to work and simply reduces the polling frequency from the default setting. I did this by creating the following files: ~/.gaminrc /usr/local/etc/gamin/gaminrc # # /usr/local/etc/gamin/gaminrc # # reduce polling frequency to once per 10 seconds # in order to lower CPU load fsset ufs poll 10 fsset zfs poll 10 # does this work? A default /usr/local/etc/gamin/gaminrc or /usr/local/etc/gamin/mandatory_gaminrc could be included with the port that documented some of the possible configuration settings and defaults for gam_server. >Release-Note: >Audit-Trail: >Unformatted:
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