Date: Wed, 12 Mar 2008 14:47:16 -0400 From: Joshua Coombs <jcoombs@gwi.net> To: freebsd-stable@freebsd.org Subject: Re: FreeBSD 7 buildworld error Message-ID: <fr98fk$727$1@ger.gmane.org> In-Reply-To: <fr3k6j$qr8$1@ger.gmane.org> References: <1204313564l.249966l.0l@psu.edu> <7E228F3A-DFE0-4071-8694-14A012CC21E1@gothic.net.au> <1204575279l.807074l.0l@psu.edu> <fqrqch$bh2$1@ger.gmane.org> <47D1735D.60007@FreeBSD.org> <fqrue4$rnn$1@ger.gmane.org> <fr3k6j$qr8$1@ger.gmane.org>
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Joshua Coombs wrote: > As a follow up: > > I setup a fresh 7.0 install in a VM and played with it. Using my > make.conf, I showed cc1 using 130MB when compiling insn-attrtab.c. I > tweaked the VM conf down to 32MB of RAM and redid the compile, and other > than taking forever due to swapping, it again churned past > insn-attrtab.c using 130MB successfully. > > My next test is going to be simulating the swap setup I've got on my > 386. Rather than one 384MB swap partition, I have three 128MB swap > partitions, one per drive. My theory was I'd see some small boost when > swapping by spreading the work load. Turns out it doesn't help, I > bottleneck on the ISA bus, transferring 1.5MB/sec max no matter how I > spread the work across the drives. When I re-partition I'll just pick > one drive to hold all swap. > > That said, given how I butted up against a limit suspiciously close to > the size of my swap partitions, rather than the 512MB data size limit > reports, thats my next guess as to the cause, swap isn't allowing single > processes to page into multiple swap pools? > > Josh C I can now confirm, using two 128MB swap partitions, plus a third 2GB partition, with 32MB of ram configured results in buildworld's failing, just using a 2GB swap partition works. Josh C
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