Reducing the time for buildworld
fordearlinux at gmail.com
Sun Mar 6 12:26:23 PST 2011
On 3/6/2011 10:42 PM, Matthew Dillon wrote:
I hesitate to ask how much memory was configured originally.
Certain subsystems within the buildworld build eat a huge amount of
memory. In particular, the GCC build within the buildworld has some
huge and complex files which eat a lot of memory while running and a
-j3 would potentially run three of those cc's simultaniously.
I remember doing buildworlds on very old machines... with 256M of ram
or less, and they would always bog down compiling gcc. Configuring a lot
of swap and not using any make parallelism got the build through those
In modern day machines have enough memory that it's easy to forget about
build requirements, but we've seen people running VMs make the same
mistake of configuring too little memory. If you are going to be running
buildworlds I woulds say 512M is about the minimum that can be configured.
And you should always configure outsized swap space, like a gigabyte or
so, on VMs with low amounts of configured ram just so it can slog though
the memory intensive bits.
Well that explains why i had to give the VM a 523 ram . And after the
'make buildworld' my virtual disk is almost full . Is there a way to
clean all these files after i 'make installworld' ?
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