FBSD 9.1.0 - make buildworld running for 1.5 hours???

[illoai at gmail.com]

On 7 March 2013 08:09, George Kontostanos <gkontos.mail at gmail.com> wrote:
> On Sat, Mar 2, 2013 at 12:38 AM, Sergio de Almeida Lenzi
> <lenzi.sergio at gmail.com> wrote:
>> Em Sex, 2013-03-01 às 12:29 -0600, Paul Schmehl escreveu:
>>
>>> I'm running make buildworld on a quad processor quad core box with 16GB of
>>> ram, and it's been running already for more than an hour and a half.  Has
>>> world really gotten that huge?  Good lord!  Good thing we have
>>> freebsd-update!
>>>
>>
>> Perhaps you did not use the -j option on the make buildworld...
>>
>>
>> env NOCLEAN=yes DESTDIR= make -j 4 buildworld
>>
>> without the -j option it runs on only one processor and can take up to 5
>> hours...
>>
>>
>>
>> Sergio
...
>
> You can easily go to -j16 if the box is not doing anything else.

With 16 cores I'll bet the bottleneck is IO.
If it were me, I'd do the build in a tmpfs(5).

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