FreeBSD 7 buildworld error

[Joshua Coombs]

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